Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

33 files changed, 14291 insertions, 0 deletions

diff --git a/drivers/gpu/drm/mediatek/Kconfig b/drivers/gpu/drm/mediatek/Kconfig
new file mode 100644
index 000000000..369e495d0
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/Kconfig
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config DRM_MEDIATEK
+	tristate "DRM Support for Mediatek SoCs"
+	depends on DRM
+	depends on ARCH_MEDIATEK || (ARM && COMPILE_TEST)
+	depends on COMMON_CLK
+	depends on HAVE_ARM_SMCCC
+	depends on OF
+	depends on MTK_MMSYS
+	select DRM_GEM_DMA_HELPER
+	select DRM_KMS_HELPER
+	select DRM_MIPI_DSI
+	select DRM_PANEL
+	select MEMORY
+	select MTK_SMI
+	select PHY_MTK_MIPI_DSI
+	select VIDEOMODE_HELPERS
+	help
+	  Choose this option if you have a Mediatek SoCs.
+	  The module will be called mediatek-drm
+	  This driver provides kernel mode setting and
+	  buffer management to userspace.
+
+config DRM_MEDIATEK_DP
+	tristate "DRM DPTX Support for MediaTek SoCs"
+	depends on DRM_MEDIATEK
+	select PHY_MTK_DP
+	select DRM_DISPLAY_HELPER
+	select DRM_DISPLAY_DP_HELPER
+	help
+	  DRM/KMS Display Port driver for MediaTek SoCs.
+
+config DRM_MEDIATEK_HDMI
+	tristate "DRM HDMI Support for Mediatek SoCs"
+	depends on DRM_MEDIATEK
+	select SND_SOC_HDMI_CODEC if SND_SOC
+	select PHY_MTK_HDMI
+	help
+	  DRM/KMS HDMI driver for Mediatek SoCs
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
new file mode 100644
index 000000000..3517d1c65
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0
+
+mediatek-drm-y := mtk_disp_aal.o \
+		  mtk_disp_ccorr.o \
+		  mtk_disp_color.o \
+		  mtk_disp_gamma.o \
+		  mtk_disp_merge.o \
+		  mtk_disp_ovl.o \
+		  mtk_disp_rdma.o \
+		  mtk_drm_crtc.o \
+		  mtk_drm_ddp_comp.o \
+		  mtk_drm_drv.o \
+		  mtk_drm_gem.o \
+		  mtk_drm_plane.o \
+		  mtk_dsi.o \
+		  mtk_dpi.o \
+		  mtk_mdp_rdma.o
+
+obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
+
+mediatek-drm-hdmi-objs := mtk_cec.o \
+			  mtk_hdmi.o \
+			  mtk_hdmi_ddc.o
+
+obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
+
+obj-$(CONFIG_DRM_MEDIATEK_DP) += mtk_dp.o
diff --git a/drivers/gpu/drm/mediatek/mtk_cec.c b/drivers/gpu/drm/mediatek/mtk_cec.c
new file mode 100644
index 000000000..cdfa64891
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_cec.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+
+#include "mtk_cec.h"
+
+#define TR_CONFIG		0x00
+#define CLEAR_CEC_IRQ			BIT(15)
+
+#define CEC_CKGEN		0x04
+#define CEC_32K_PDN			BIT(19)
+#define PDN				BIT(16)
+
+#define RX_EVENT		0x54
+#define HDMI_PORD			BIT(25)
+#define HDMI_HTPLG			BIT(24)
+#define HDMI_PORD_INT_EN		BIT(9)
+#define HDMI_HTPLG_INT_EN		BIT(8)
+
+#define RX_GEN_WD		0x58
+#define HDMI_PORD_INT_32K_STATUS	BIT(26)
+#define RX_RISC_INT_32K_STATUS		BIT(25)
+#define HDMI_HTPLG_INT_32K_STATUS	BIT(24)
+#define HDMI_PORD_INT_32K_CLR		BIT(18)
+#define RX_INT_32K_CLR			BIT(17)
+#define HDMI_HTPLG_INT_32K_CLR		BIT(16)
+#define HDMI_PORD_INT_32K_STA_MASK	BIT(10)
+#define RX_RISC_INT_32K_STA_MASK	BIT(9)
+#define HDMI_HTPLG_INT_32K_STA_MASK	BIT(8)
+#define HDMI_PORD_INT_32K_EN		BIT(2)
+#define RX_INT_32K_EN			BIT(1)
+#define HDMI_HTPLG_INT_32K_EN		BIT(0)
+
+#define NORMAL_INT_CTRL		0x5C
+#define HDMI_HTPLG_INT_STA		BIT(0)
+#define HDMI_PORD_INT_STA		BIT(1)
+#define HDMI_HTPLG_INT_CLR		BIT(16)
+#define HDMI_PORD_INT_CLR		BIT(17)
+#define HDMI_FULL_INT_CLR		BIT(20)
+
+struct mtk_cec {
+	void __iomem *regs;
+	struct clk *clk;
+	int irq;
+	bool hpd;
+	void (*hpd_event)(bool hpd, struct device *dev);
+	struct device *hdmi_dev;
+	spinlock_t lock;
+};
+
+static void mtk_cec_clear_bits(struct mtk_cec *cec, unsigned int offset,
+			       unsigned int bits)
+{
+	void __iomem *reg = cec->regs + offset;
+	u32 tmp;
+
+	tmp = readl(reg);
+	tmp &= ~bits;
+	writel(tmp, reg);
+}
+
+static void mtk_cec_set_bits(struct mtk_cec *cec, unsigned int offset,
+			     unsigned int bits)
+{
+	void __iomem *reg = cec->regs + offset;
+	u32 tmp;
+
+	tmp = readl(reg);
+	tmp |= bits;
+	writel(tmp, reg);
+}
+
+static void mtk_cec_mask(struct mtk_cec *cec, unsigned int offset,
+			 unsigned int val, unsigned int mask)
+{
+	u32 tmp = readl(cec->regs + offset) & ~mask;
+
+	tmp |= val & mask;
+	writel(tmp, cec->regs + offset);
+}
+
+void mtk_cec_set_hpd_event(struct device *dev,
+			   void (*hpd_event)(bool hpd, struct device *dev),
+			   struct device *hdmi_dev)
+{
+	struct mtk_cec *cec = dev_get_drvdata(dev);
+	unsigned long flags;
+
+	spin_lock_irqsave(&cec->lock, flags);
+	cec->hdmi_dev = hdmi_dev;
+	cec->hpd_event = hpd_event;
+	spin_unlock_irqrestore(&cec->lock, flags);
+}
+
+bool mtk_cec_hpd_high(struct device *dev)
+{
+	struct mtk_cec *cec = dev_get_drvdata(dev);
+	unsigned int status;
+
+	status = readl(cec->regs + RX_EVENT);
+
+	return (status & (HDMI_PORD | HDMI_HTPLG)) == (HDMI_PORD | HDMI_HTPLG);
+}
+
+static void mtk_cec_htplg_irq_init(struct mtk_cec *cec)
+{
+	mtk_cec_mask(cec, CEC_CKGEN, 0 | CEC_32K_PDN, PDN | CEC_32K_PDN);
+	mtk_cec_set_bits(cec, RX_GEN_WD, HDMI_PORD_INT_32K_CLR |
+			 RX_INT_32K_CLR | HDMI_HTPLG_INT_32K_CLR);
+	mtk_cec_mask(cec, RX_GEN_WD, 0, HDMI_PORD_INT_32K_CLR | RX_INT_32K_CLR |
+		     HDMI_HTPLG_INT_32K_CLR | HDMI_PORD_INT_32K_EN |
+		     RX_INT_32K_EN | HDMI_HTPLG_INT_32K_EN);
+}
+
+static void mtk_cec_htplg_irq_enable(struct mtk_cec *cec)
+{
+	mtk_cec_set_bits(cec, RX_EVENT, HDMI_PORD_INT_EN | HDMI_HTPLG_INT_EN);
+}
+
+static void mtk_cec_htplg_irq_disable(struct mtk_cec *cec)
+{
+	mtk_cec_clear_bits(cec, RX_EVENT, HDMI_PORD_INT_EN | HDMI_HTPLG_INT_EN);
+}
+
+static void mtk_cec_clear_htplg_irq(struct mtk_cec *cec)
+{
+	mtk_cec_set_bits(cec, TR_CONFIG, CLEAR_CEC_IRQ);
+	mtk_cec_set_bits(cec, NORMAL_INT_CTRL, HDMI_HTPLG_INT_CLR |
+			 HDMI_PORD_INT_CLR | HDMI_FULL_INT_CLR);
+	mtk_cec_set_bits(cec, RX_GEN_WD, HDMI_PORD_INT_32K_CLR |
+			 RX_INT_32K_CLR | HDMI_HTPLG_INT_32K_CLR);
+	usleep_range(5, 10);
+	mtk_cec_clear_bits(cec, NORMAL_INT_CTRL, HDMI_HTPLG_INT_CLR |
+			   HDMI_PORD_INT_CLR | HDMI_FULL_INT_CLR);
+	mtk_cec_clear_bits(cec, TR_CONFIG, CLEAR_CEC_IRQ);
+	mtk_cec_clear_bits(cec, RX_GEN_WD, HDMI_PORD_INT_32K_CLR |
+			   RX_INT_32K_CLR | HDMI_HTPLG_INT_32K_CLR);
+}
+
+static void mtk_cec_hpd_event(struct mtk_cec *cec, bool hpd)
+{
+	void (*hpd_event)(bool hpd, struct device *dev);
+	struct device *hdmi_dev;
+	unsigned long flags;
+
+	spin_lock_irqsave(&cec->lock, flags);
+	hpd_event = cec->hpd_event;
+	hdmi_dev = cec->hdmi_dev;
+	spin_unlock_irqrestore(&cec->lock, flags);
+
+	if (hpd_event)
+		hpd_event(hpd, hdmi_dev);
+}
+
+static irqreturn_t mtk_cec_htplg_isr_thread(int irq, void *arg)
+{
+	struct device *dev = arg;
+	struct mtk_cec *cec = dev_get_drvdata(dev);
+	bool hpd;
+
+	mtk_cec_clear_htplg_irq(cec);
+	hpd = mtk_cec_hpd_high(dev);
+
+	if (cec->hpd != hpd) {
+		dev_dbg(dev, "hotplug event! cur hpd = %d, hpd = %d\n",
+			cec->hpd, hpd);
+		cec->hpd = hpd;
+		mtk_cec_hpd_event(cec, hpd);
+	}
+	return IRQ_HANDLED;
+}
+
+static int mtk_cec_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_cec *cec;
+	struct resource *res;
+	int ret;
+
+	cec = devm_kzalloc(dev, sizeof(*cec), GFP_KERNEL);
+	if (!cec)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, cec);
+	spin_lock_init(&cec->lock);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	cec->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(cec->regs)) {
+		ret = PTR_ERR(cec->regs);
+		dev_err(dev, "Failed to ioremap cec: %d\n", ret);
+		return ret;
+	}
+
+	cec->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(cec->clk)) {
+		ret = PTR_ERR(cec->clk);
+		dev_err(dev, "Failed to get cec clock: %d\n", ret);
+		return ret;
+	}
+
+	cec->irq = platform_get_irq(pdev, 0);
+	if (cec->irq < 0)
+		return cec->irq;
+
+	ret = devm_request_threaded_irq(dev, cec->irq, NULL,
+					mtk_cec_htplg_isr_thread,
+					IRQF_SHARED | IRQF_TRIGGER_LOW |
+					IRQF_ONESHOT, "hdmi hpd", dev);
+	if (ret) {
+		dev_err(dev, "Failed to register cec irq: %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(cec->clk);
+	if (ret) {
+		dev_err(dev, "Failed to enable cec clock: %d\n", ret);
+		return ret;
+	}
+
+	mtk_cec_htplg_irq_init(cec);
+	mtk_cec_htplg_irq_enable(cec);
+
+	return 0;
+}
+
+static int mtk_cec_remove(struct platform_device *pdev)
+{
+	struct mtk_cec *cec = platform_get_drvdata(pdev);
+
+	mtk_cec_htplg_irq_disable(cec);
+	clk_disable_unprepare(cec->clk);
+	return 0;
+}
+
+static const struct of_device_id mtk_cec_of_ids[] = {
+	{ .compatible = "mediatek,mt8173-cec", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, mtk_cec_of_ids);
+
+struct platform_driver mtk_cec_driver = {
+	.probe = mtk_cec_probe,
+	.remove = mtk_cec_remove,
+	.driver = {
+		.name = "mediatek-cec",
+		.of_match_table = mtk_cec_of_ids,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_cec.h b/drivers/gpu/drm/mediatek/mtk_cec.h
new file mode 100644
index 000000000..c6412dddb
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_cec.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+#ifndef _MTK_CEC_H
+#define _MTK_CEC_H
+
+#include <linux/types.h>
+
+struct device;
+
+void mtk_cec_set_hpd_event(struct device *dev,
+			   void (*hotplug_event)(bool hpd, struct device *dev),
+			   struct device *hdmi_dev);
+bool mtk_cec_hpd_high(struct device *dev);
+
+#endif /* _MTK_CEC_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_aal.c b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
new file mode 100644
index 000000000..0f9d7efb6
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_aal.c
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_AAL_EN				0x0000
+#define AAL_EN						BIT(0)
+#define DISP_AAL_SIZE				0x0030
+#define DISP_AAL_OUTPUT_SIZE			0x04d8
+
+
+struct mtk_disp_aal_data {
+	bool has_gamma;
+};
+
+/**
+ * struct mtk_disp_aal - DISP_AAL driver structure
+ * @ddp_comp - structure containing type enum and hardware resources
+ * @crtc - associated crtc to report irq events to
+ */
+struct mtk_disp_aal {
+	struct clk *clk;
+	void __iomem *regs;
+	struct cmdq_client_reg cmdq_reg;
+	const struct mtk_disp_aal_data *data;
+};
+
+int mtk_aal_clk_enable(struct device *dev)
+{
+	struct mtk_disp_aal *aal = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(aal->clk);
+}
+
+void mtk_aal_clk_disable(struct device *dev)
+{
+	struct mtk_disp_aal *aal = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(aal->clk);
+}
+
+void mtk_aal_config(struct device *dev, unsigned int w,
+			   unsigned int h, unsigned int vrefresh,
+			   unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_aal *aal = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &aal->cmdq_reg, aal->regs, DISP_AAL_SIZE);
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &aal->cmdq_reg, aal->regs, DISP_AAL_OUTPUT_SIZE);
+}
+
+void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state)
+{
+	struct mtk_disp_aal *aal = dev_get_drvdata(dev);
+
+	if (aal->data && aal->data->has_gamma)
+		mtk_gamma_set_common(aal->regs, state, false);
+}
+
+void mtk_aal_start(struct device *dev)
+{
+	struct mtk_disp_aal *aal = dev_get_drvdata(dev);
+
+	writel(AAL_EN, aal->regs + DISP_AAL_EN);
+}
+
+void mtk_aal_stop(struct device *dev)
+{
+	struct mtk_disp_aal *aal = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, aal->regs + DISP_AAL_EN);
+}
+
+static int mtk_disp_aal_bind(struct device *dev, struct device *master,
+			       void *data)
+{
+	return 0;
+}
+
+static void mtk_disp_aal_unbind(struct device *dev, struct device *master,
+				  void *data)
+{
+}
+
+static const struct component_ops mtk_disp_aal_component_ops = {
+	.bind	= mtk_disp_aal_bind,
+	.unbind = mtk_disp_aal_unbind,
+};
+
+static int mtk_disp_aal_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_aal *priv;
+	struct resource *res;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get aal clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap aal\n");
+		return PTR_ERR(priv->regs);
+	}
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	priv->data = of_device_get_match_data(dev);
+	platform_set_drvdata(pdev, priv);
+
+	ret = component_add(dev, &mtk_disp_aal_component_ops);
+	if (ret)
+		dev_err(dev, "Failed to add component: %d\n", ret);
+
+	return ret;
+}
+
+static int mtk_disp_aal_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_aal_component_ops);
+
+	return 0;
+}
+
+static const struct mtk_disp_aal_data mt8173_aal_driver_data = {
+	.has_gamma = true,
+};
+
+static const struct of_device_id mtk_disp_aal_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt8173-disp-aal",
+	  .data = &mt8173_aal_driver_data},
+	{ .compatible = "mediatek,mt8183-disp-aal"},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_aal_driver_dt_match);
+
+struct platform_driver mtk_disp_aal_driver = {
+	.probe		= mtk_disp_aal_probe,
+	.remove		= mtk_disp_aal_remove,
+	.driver		= {
+		.name	= "mediatek-disp-aal",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_aal_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
new file mode 100644
index 000000000..3a53ebc4e
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ccorr.c
@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_CCORR_EN				0x0000
+#define CCORR_EN					BIT(0)
+#define DISP_CCORR_CFG				0x0020
+#define CCORR_RELAY_MODE				BIT(0)
+#define CCORR_ENGINE_EN					BIT(1)
+#define CCORR_GAMMA_OFF					BIT(2)
+#define CCORR_WGAMUT_SRC_CLIP				BIT(3)
+#define DISP_CCORR_SIZE				0x0030
+#define DISP_CCORR_COEF_0			0x0080
+#define DISP_CCORR_COEF_1			0x0084
+#define DISP_CCORR_COEF_2			0x0088
+#define DISP_CCORR_COEF_3			0x008C
+#define DISP_CCORR_COEF_4			0x0090
+
+struct mtk_disp_ccorr_data {
+	u32 matrix_bits;
+};
+
+/**
+ * struct mtk_disp_ccorr - DISP_CCORR driver structure
+ * @ddp_comp - structure containing type enum and hardware resources
+ * @crtc - associated crtc to report irq events to
+ */
+struct mtk_disp_ccorr {
+	struct clk *clk;
+	void __iomem *regs;
+	struct cmdq_client_reg cmdq_reg;
+	const struct mtk_disp_ccorr_data	*data;
+};
+
+int mtk_ccorr_clk_enable(struct device *dev)
+{
+	struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(ccorr->clk);
+}
+
+void mtk_ccorr_clk_disable(struct device *dev)
+{
+	struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(ccorr->clk);
+}
+
+void mtk_ccorr_config(struct device *dev, unsigned int w,
+			     unsigned int h, unsigned int vrefresh,
+			     unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &ccorr->cmdq_reg, ccorr->regs,
+		      DISP_CCORR_SIZE);
+	mtk_ddp_write(cmdq_pkt, CCORR_ENGINE_EN, &ccorr->cmdq_reg, ccorr->regs,
+		      DISP_CCORR_CFG);
+}
+
+void mtk_ccorr_start(struct device *dev)
+{
+	struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+	writel(CCORR_EN, ccorr->regs + DISP_CCORR_EN);
+}
+
+void mtk_ccorr_stop(struct device *dev)
+{
+	struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, ccorr->regs + DISP_CCORR_EN);
+}
+
+/* Converts a DRM S31.32 value to the HW S1.n format. */
+static u16 mtk_ctm_s31_32_to_s1_n(u64 in, u32 n)
+{
+	u16 r;
+
+	/* Sign bit. */
+	r = in & BIT_ULL(63) ? BIT(n + 1) : 0;
+
+	if ((in & GENMASK_ULL(62, 33)) > 0) {
+		/* identity value 0x100000000 -> 0x400(mt8183), */
+		/* identity value 0x100000000 -> 0x800(mt8192), */
+		/* if bigger this, set it to max 0x7ff. */
+		r |= GENMASK(n, 0);
+	} else {
+		/* take the n+1 most important bits. */
+		r |= (in >> (32 - n)) & GENMASK(n, 0);
+	}
+
+	return r;
+}
+
+void mtk_ccorr_ctm_set(struct device *dev, struct drm_crtc_state *state)
+{
+	struct mtk_disp_ccorr *ccorr = dev_get_drvdata(dev);
+	struct drm_property_blob *blob = state->ctm;
+	struct drm_color_ctm *ctm;
+	const u64 *input;
+	uint16_t coeffs[9] = { 0 };
+	int i;
+	struct cmdq_pkt *cmdq_pkt = NULL;
+	u32 matrix_bits = ccorr->data->matrix_bits;
+
+	if (!blob)
+		return;
+
+	ctm = (struct drm_color_ctm *)blob->data;
+	input = ctm->matrix;
+
+	for (i = 0; i < ARRAY_SIZE(coeffs); i++)
+		coeffs[i] = mtk_ctm_s31_32_to_s1_n(input[i], matrix_bits);
+
+	mtk_ddp_write(cmdq_pkt, coeffs[0] << 16 | coeffs[1],
+		      &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_0);
+	mtk_ddp_write(cmdq_pkt, coeffs[2] << 16 | coeffs[3],
+		      &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_1);
+	mtk_ddp_write(cmdq_pkt, coeffs[4] << 16 | coeffs[5],
+		      &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_2);
+	mtk_ddp_write(cmdq_pkt, coeffs[6] << 16 | coeffs[7],
+		      &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_3);
+	mtk_ddp_write(cmdq_pkt, coeffs[8] << 16,
+		      &ccorr->cmdq_reg, ccorr->regs, DISP_CCORR_COEF_4);
+}
+
+static int mtk_disp_ccorr_bind(struct device *dev, struct device *master,
+			       void *data)
+{
+	return 0;
+}
+
+static void mtk_disp_ccorr_unbind(struct device *dev, struct device *master,
+				  void *data)
+{
+}
+
+static const struct component_ops mtk_disp_ccorr_component_ops = {
+	.bind	= mtk_disp_ccorr_bind,
+	.unbind	= mtk_disp_ccorr_unbind,
+};
+
+static int mtk_disp_ccorr_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_ccorr *priv;
+	struct resource *res;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get ccorr clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap ccorr\n");
+		return PTR_ERR(priv->regs);
+	}
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	priv->data = of_device_get_match_data(dev);
+	platform_set_drvdata(pdev, priv);
+
+	ret = component_add(dev, &mtk_disp_ccorr_component_ops);
+	if (ret)
+		dev_err(dev, "Failed to add component: %d\n", ret);
+
+	return ret;
+}
+
+static int mtk_disp_ccorr_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_ccorr_component_ops);
+
+	return 0;
+}
+
+static const struct mtk_disp_ccorr_data mt8183_ccorr_driver_data = {
+	.matrix_bits = 10,
+};
+
+static const struct mtk_disp_ccorr_data mt8192_ccorr_driver_data = {
+	.matrix_bits = 11,
+};
+
+static const struct of_device_id mtk_disp_ccorr_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt8183-disp-ccorr",
+	  .data = &mt8183_ccorr_driver_data},
+	{ .compatible = "mediatek,mt8192-disp-ccorr",
+	  .data = &mt8192_ccorr_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_ccorr_driver_dt_match);
+
+struct platform_driver mtk_disp_ccorr_driver = {
+	.probe		= mtk_disp_ccorr_probe,
+	.remove		= mtk_disp_ccorr_remove,
+	.driver		= {
+		.name	= "mediatek-disp-ccorr",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_ccorr_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_color.c b/drivers/gpu/drm/mediatek/mtk_disp_color.c
new file mode 100644
index 000000000..473f5bb5c
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_color.c
@@ -0,0 +1,172 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2017 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_COLOR_CFG_MAIN			0x0400
+#define DISP_COLOR_START_MT2701			0x0f00
+#define DISP_COLOR_START_MT8167			0x0400
+#define DISP_COLOR_START_MT8173			0x0c00
+#define DISP_COLOR_START(comp)			((comp)->data->color_offset)
+#define DISP_COLOR_WIDTH(comp)			(DISP_COLOR_START(comp) + 0x50)
+#define DISP_COLOR_HEIGHT(comp)			(DISP_COLOR_START(comp) + 0x54)
+
+#define COLOR_BYPASS_ALL			BIT(7)
+#define COLOR_SEQ_SEL				BIT(13)
+
+struct mtk_disp_color_data {
+	unsigned int color_offset;
+};
+
+/*
+ * struct mtk_disp_color - DISP_COLOR driver structure
+ * @crtc: associated crtc to report irq events to
+ * @data: platform colour driver data
+ */
+struct mtk_disp_color {
+	struct drm_crtc				*crtc;
+	struct clk				*clk;
+	void __iomem				*regs;
+	struct cmdq_client_reg			cmdq_reg;
+	const struct mtk_disp_color_data	*data;
+};
+
+int mtk_color_clk_enable(struct device *dev)
+{
+	struct mtk_disp_color *color = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(color->clk);
+}
+
+void mtk_color_clk_disable(struct device *dev)
+{
+	struct mtk_disp_color *color = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(color->clk);
+}
+
+void mtk_color_config(struct device *dev, unsigned int w,
+		      unsigned int h, unsigned int vrefresh,
+		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_color *color = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, w, &color->cmdq_reg, color->regs, DISP_COLOR_WIDTH(color));
+	mtk_ddp_write(cmdq_pkt, h, &color->cmdq_reg, color->regs, DISP_COLOR_HEIGHT(color));
+}
+
+void mtk_color_start(struct device *dev)
+{
+	struct mtk_disp_color *color = dev_get_drvdata(dev);
+
+	writel(COLOR_BYPASS_ALL | COLOR_SEQ_SEL,
+	       color->regs + DISP_COLOR_CFG_MAIN);
+	writel(0x1, color->regs + DISP_COLOR_START(color));
+}
+
+static int mtk_disp_color_bind(struct device *dev, struct device *master,
+			       void *data)
+{
+	return 0;
+}
+
+static void mtk_disp_color_unbind(struct device *dev, struct device *master,
+				  void *data)
+{
+}
+
+static const struct component_ops mtk_disp_color_component_ops = {
+	.bind	= mtk_disp_color_bind,
+	.unbind = mtk_disp_color_unbind,
+};
+
+static int mtk_disp_color_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_color *priv;
+	struct resource *res;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get color clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap color\n");
+		return PTR_ERR(priv->regs);
+	}
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	priv->data = of_device_get_match_data(dev);
+	platform_set_drvdata(pdev, priv);
+
+	ret = component_add(dev, &mtk_disp_color_component_ops);
+	if (ret)
+		dev_err(dev, "Failed to add component: %d\n", ret);
+
+	return ret;
+}
+
+static int mtk_disp_color_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_color_component_ops);
+
+	return 0;
+}
+
+static const struct mtk_disp_color_data mt2701_color_driver_data = {
+	.color_offset = DISP_COLOR_START_MT2701,
+};
+
+static const struct mtk_disp_color_data mt8167_color_driver_data = {
+	.color_offset = DISP_COLOR_START_MT8167,
+};
+
+static const struct mtk_disp_color_data mt8173_color_driver_data = {
+	.color_offset = DISP_COLOR_START_MT8173,
+};
+
+static const struct of_device_id mtk_disp_color_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt2701-disp-color",
+	  .data = &mt2701_color_driver_data},
+	{ .compatible = "mediatek,mt8167-disp-color",
+	  .data = &mt8167_color_driver_data},
+	{ .compatible = "mediatek,mt8173-disp-color",
+	  .data = &mt8173_color_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_color_driver_dt_match);
+
+struct platform_driver mtk_disp_color_driver = {
+	.probe		= mtk_disp_color_probe,
+	.remove		= mtk_disp_color_remove,
+	.driver		= {
+		.name	= "mediatek-disp-color",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_color_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
new file mode 100644
index 000000000..33e61a136
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020 MediaTek Inc.
+ */
+
+#ifndef _MTK_DISP_DRV_H_
+#define _MTK_DISP_DRV_H_
+
+#include <linux/soc/mediatek/mtk-cmdq.h>
+#include "mtk_drm_plane.h"
+#include "mtk_mdp_rdma.h"
+
+int mtk_aal_clk_enable(struct device *dev);
+void mtk_aal_clk_disable(struct device *dev);
+void mtk_aal_config(struct device *dev, unsigned int w,
+		    unsigned int h, unsigned int vrefresh,
+		    unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+void mtk_aal_gamma_set(struct device *dev, struct drm_crtc_state *state);
+void mtk_aal_start(struct device *dev);
+void mtk_aal_stop(struct device *dev);
+
+void mtk_ccorr_ctm_set(struct device *dev, struct drm_crtc_state *state);
+int mtk_ccorr_clk_enable(struct device *dev);
+void mtk_ccorr_clk_disable(struct device *dev);
+void mtk_ccorr_config(struct device *dev, unsigned int w,
+		      unsigned int h, unsigned int vrefresh,
+		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+void mtk_ccorr_start(struct device *dev);
+void mtk_ccorr_stop(struct device *dev);
+
+void mtk_color_bypass_shadow(struct device *dev);
+int mtk_color_clk_enable(struct device *dev);
+void mtk_color_clk_disable(struct device *dev);
+void mtk_color_config(struct device *dev, unsigned int w,
+		      unsigned int h, unsigned int vrefresh,
+		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+void mtk_color_start(struct device *dev);
+
+void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg,
+			   unsigned int bpc, unsigned int cfg,
+			   unsigned int dither_en, struct cmdq_pkt *cmdq_pkt);
+
+void mtk_dpi_start(struct device *dev);
+void mtk_dpi_stop(struct device *dev);
+
+void mtk_dsi_ddp_start(struct device *dev);
+void mtk_dsi_ddp_stop(struct device *dev);
+
+int mtk_gamma_clk_enable(struct device *dev);
+void mtk_gamma_clk_disable(struct device *dev);
+void mtk_gamma_config(struct device *dev, unsigned int w,
+		      unsigned int h, unsigned int vrefresh,
+		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state);
+void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool lut_diff);
+void mtk_gamma_start(struct device *dev);
+void mtk_gamma_stop(struct device *dev);
+
+int mtk_merge_clk_enable(struct device *dev);
+void mtk_merge_clk_disable(struct device *dev);
+void mtk_merge_config(struct device *dev, unsigned int width,
+		      unsigned int height, unsigned int vrefresh,
+		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+void mtk_merge_start(struct device *dev);
+void mtk_merge_stop(struct device *dev);
+void mtk_merge_advance_config(struct device *dev, unsigned int l_w, unsigned int r_w,
+			      unsigned int h, unsigned int vrefresh, unsigned int bpc,
+			      struct cmdq_pkt *cmdq_pkt);
+void mtk_merge_start_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt);
+void mtk_merge_stop_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt);
+
+void mtk_ovl_bgclr_in_on(struct device *dev);
+void mtk_ovl_bgclr_in_off(struct device *dev);
+void mtk_ovl_bypass_shadow(struct device *dev);
+int mtk_ovl_clk_enable(struct device *dev);
+void mtk_ovl_clk_disable(struct device *dev);
+void mtk_ovl_config(struct device *dev, unsigned int w,
+		    unsigned int h, unsigned int vrefresh,
+		    unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
+			struct mtk_plane_state *mtk_state);
+void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
+			  struct mtk_plane_state *state,
+			  struct cmdq_pkt *cmdq_pkt);
+unsigned int mtk_ovl_layer_nr(struct device *dev);
+void mtk_ovl_layer_on(struct device *dev, unsigned int idx,
+		      struct cmdq_pkt *cmdq_pkt);
+void mtk_ovl_layer_off(struct device *dev, unsigned int idx,
+		       struct cmdq_pkt *cmdq_pkt);
+void mtk_ovl_start(struct device *dev);
+void mtk_ovl_stop(struct device *dev);
+unsigned int mtk_ovl_supported_rotations(struct device *dev);
+void mtk_ovl_register_vblank_cb(struct device *dev,
+				void (*vblank_cb)(void *),
+				void *vblank_cb_data);
+void mtk_ovl_unregister_vblank_cb(struct device *dev);
+void mtk_ovl_enable_vblank(struct device *dev);
+void mtk_ovl_disable_vblank(struct device *dev);
+
+void mtk_rdma_bypass_shadow(struct device *dev);
+int mtk_rdma_clk_enable(struct device *dev);
+void mtk_rdma_clk_disable(struct device *dev);
+void mtk_rdma_config(struct device *dev, unsigned int width,
+		     unsigned int height, unsigned int vrefresh,
+		     unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+unsigned int mtk_rdma_layer_nr(struct device *dev);
+void mtk_rdma_layer_config(struct device *dev, unsigned int idx,
+			   struct mtk_plane_state *state,
+			   struct cmdq_pkt *cmdq_pkt);
+void mtk_rdma_start(struct device *dev);
+void mtk_rdma_stop(struct device *dev);
+void mtk_rdma_register_vblank_cb(struct device *dev,
+				 void (*vblank_cb)(void *),
+				 void *vblank_cb_data);
+void mtk_rdma_unregister_vblank_cb(struct device *dev);
+void mtk_rdma_enable_vblank(struct device *dev);
+void mtk_rdma_disable_vblank(struct device *dev);
+
+int mtk_mdp_rdma_clk_enable(struct device *dev);
+void mtk_mdp_rdma_clk_disable(struct device *dev);
+void mtk_mdp_rdma_start(struct device *dev, struct cmdq_pkt *cmdq_pkt);
+void mtk_mdp_rdma_stop(struct device *dev, struct cmdq_pkt *cmdq_pkt);
+void mtk_mdp_rdma_config(struct device *dev, struct mtk_mdp_rdma_cfg *cfg,
+			 struct cmdq_pkt *cmdq_pkt);
+#endif
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_gamma.c b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
new file mode 100644
index 000000000..bbd558a03
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_gamma.c
@@ -0,0 +1,217 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_GAMMA_EN				0x0000
+#define GAMMA_EN					BIT(0)
+#define DISP_GAMMA_CFG				0x0020
+#define GAMMA_LUT_EN					BIT(1)
+#define GAMMA_DITHERING					BIT(2)
+#define DISP_GAMMA_SIZE				0x0030
+#define DISP_GAMMA_LUT				0x0700
+
+#define LUT_10BIT_MASK				0x03ff
+
+struct mtk_disp_gamma_data {
+	bool has_dither;
+	bool lut_diff;
+};
+
+/*
+ * struct mtk_disp_gamma - DISP_GAMMA driver structure
+ */
+struct mtk_disp_gamma {
+	struct clk *clk;
+	void __iomem *regs;
+	struct cmdq_client_reg cmdq_reg;
+	const struct mtk_disp_gamma_data *data;
+};
+
+int mtk_gamma_clk_enable(struct device *dev)
+{
+	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(gamma->clk);
+}
+
+void mtk_gamma_clk_disable(struct device *dev)
+{
+	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(gamma->clk);
+}
+
+void mtk_gamma_set_common(void __iomem *regs, struct drm_crtc_state *state, bool lut_diff)
+{
+	unsigned int i, reg;
+	struct drm_color_lut *lut;
+	void __iomem *lut_base;
+	u32 word;
+	u32 diff[3] = {0};
+
+	if (state->gamma_lut) {
+		reg = readl(regs + DISP_GAMMA_CFG);
+		reg = reg | GAMMA_LUT_EN;
+		writel(reg, regs + DISP_GAMMA_CFG);
+		lut_base = regs + DISP_GAMMA_LUT;
+		lut = (struct drm_color_lut *)state->gamma_lut->data;
+		for (i = 0; i < MTK_LUT_SIZE; i++) {
+
+			if (!lut_diff || (i % 2 == 0)) {
+				word = (((lut[i].red >> 6) & LUT_10BIT_MASK) << 20) +
+					(((lut[i].green >> 6) & LUT_10BIT_MASK) << 10) +
+					((lut[i].blue >> 6) & LUT_10BIT_MASK);
+			} else {
+				diff[0] = (lut[i].red >> 6) - (lut[i - 1].red >> 6);
+				diff[1] = (lut[i].green >> 6) - (lut[i - 1].green >> 6);
+				diff[2] = (lut[i].blue >> 6) - (lut[i - 1].blue >> 6);
+
+				word = ((diff[0] & LUT_10BIT_MASK) << 20) +
+					((diff[1] & LUT_10BIT_MASK) << 10) +
+					(diff[2] & LUT_10BIT_MASK);
+			}
+			writel(word, (lut_base + i * 4));
+		}
+	}
+}
+
+void mtk_gamma_set(struct device *dev, struct drm_crtc_state *state)
+{
+	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
+	bool lut_diff = false;
+
+	if (gamma->data)
+		lut_diff = gamma->data->lut_diff;
+
+	mtk_gamma_set_common(gamma->regs, state, lut_diff);
+}
+
+void mtk_gamma_config(struct device *dev, unsigned int w,
+		      unsigned int h, unsigned int vrefresh,
+		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, h << 16 | w, &gamma->cmdq_reg, gamma->regs,
+		      DISP_GAMMA_SIZE);
+	if (gamma->data && gamma->data->has_dither)
+		mtk_dither_set_common(gamma->regs, &gamma->cmdq_reg, bpc,
+				      DISP_GAMMA_CFG, GAMMA_DITHERING, cmdq_pkt);
+}
+
+void mtk_gamma_start(struct device *dev)
+{
+	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
+
+	writel(GAMMA_EN, gamma->regs + DISP_GAMMA_EN);
+}
+
+void mtk_gamma_stop(struct device *dev)
+{
+	struct mtk_disp_gamma *gamma = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, gamma->regs + DISP_GAMMA_EN);
+}
+
+static int mtk_disp_gamma_bind(struct device *dev, struct device *master,
+			       void *data)
+{
+	return 0;
+}
+
+static void mtk_disp_gamma_unbind(struct device *dev, struct device *master,
+				  void *data)
+{
+}
+
+static const struct component_ops mtk_disp_gamma_component_ops = {
+	.bind	= mtk_disp_gamma_bind,
+	.unbind = mtk_disp_gamma_unbind,
+};
+
+static int mtk_disp_gamma_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_gamma *priv;
+	struct resource *res;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get gamma clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap gamma\n");
+		return PTR_ERR(priv->regs);
+	}
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	priv->data = of_device_get_match_data(dev);
+	platform_set_drvdata(pdev, priv);
+
+	ret = component_add(dev, &mtk_disp_gamma_component_ops);
+	if (ret)
+		dev_err(dev, "Failed to add component: %d\n", ret);
+
+	return ret;
+}
+
+static int mtk_disp_gamma_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_gamma_component_ops);
+
+	return 0;
+}
+
+static const struct mtk_disp_gamma_data mt8173_gamma_driver_data = {
+	.has_dither = true,
+};
+
+static const struct mtk_disp_gamma_data mt8183_gamma_driver_data = {
+	.lut_diff = true,
+};
+
+static const struct of_device_id mtk_disp_gamma_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt8173-disp-gamma",
+	  .data = &mt8173_gamma_driver_data},
+	{ .compatible = "mediatek,mt8183-disp-gamma",
+	  .data = &mt8183_gamma_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_gamma_driver_dt_match);
+
+struct platform_driver mtk_disp_gamma_driver = {
+	.probe		= mtk_disp_gamma_probe,
+	.remove		= mtk_disp_gamma_remove,
+	.driver		= {
+		.name	= "mediatek-disp-gamma",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_gamma_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_merge.c b/drivers/gpu/drm/mediatek/mtk_disp_merge.c
new file mode 100644
index 000000000..211140e87
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_merge.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_drm_ddp_comp.h"
+#include "mtk_drm_drv.h"
+#include "mtk_disp_drv.h"
+
+#define DISP_REG_MERGE_CTRL		0x000
+#define MERGE_EN				1
+#define DISP_REG_MERGE_CFG_0		0x010
+#define DISP_REG_MERGE_CFG_1		0x014
+#define DISP_REG_MERGE_CFG_4		0x020
+#define DISP_REG_MERGE_CFG_10		0x038
+/* no swap */
+#define SWAP_MODE				0
+#define FLD_SWAP_MODE				GENMASK(4, 0)
+#define DISP_REG_MERGE_CFG_12		0x040
+#define CFG_10_10_1PI_2PO_BUF_MODE		6
+#define CFG_10_10_2PI_2PO_BUF_MODE		8
+#define CFG_11_10_1PI_2PO_MERGE			18
+#define FLD_CFG_MERGE_MODE			GENMASK(4, 0)
+#define DISP_REG_MERGE_CFG_24		0x070
+#define DISP_REG_MERGE_CFG_25		0x074
+#define DISP_REG_MERGE_CFG_26		0x078
+#define DISP_REG_MERGE_CFG_27		0x07c
+#define DISP_REG_MERGE_CFG_36		0x0a0
+#define ULTRA_EN				BIT(0)
+#define PREULTRA_EN				BIT(4)
+#define DISP_REG_MERGE_CFG_37		0x0a4
+/* 0: Off, 1: SRAM0, 2: SRAM1, 3: SRAM0 + SRAM1 */
+#define BUFFER_MODE				3
+#define FLD_BUFFER_MODE				GENMASK(1, 0)
+/*
+ * For the ultra and preultra settings, 6us ~ 9us is experience value
+ * and the maximum frequency of mmsys clock is 594MHz.
+ */
+#define DISP_REG_MERGE_CFG_40		0x0b0
+/* 6 us, 594M pixel/sec */
+#define ULTRA_TH_LOW				(6 * 594)
+/* 8 us, 594M pixel/sec */
+#define ULTRA_TH_HIGH				(8 * 594)
+#define FLD_ULTRA_TH_LOW			GENMASK(15, 0)
+#define FLD_ULTRA_TH_HIGH			GENMASK(31, 16)
+#define DISP_REG_MERGE_CFG_41		0x0b4
+/* 8 us, 594M pixel/sec */
+#define PREULTRA_TH_LOW				(8 * 594)
+/* 9 us, 594M pixel/sec */
+#define PREULTRA_TH_HIGH			(9 * 594)
+#define FLD_PREULTRA_TH_LOW			GENMASK(15, 0)
+#define FLD_PREULTRA_TH_HIGH			GENMASK(31, 16)
+
+#define DISP_REG_MERGE_MUTE_0		0xf00
+
+struct mtk_disp_merge {
+	void __iomem			*regs;
+	struct clk			*clk;
+	struct clk			*async_clk;
+	struct cmdq_client_reg		cmdq_reg;
+	bool				fifo_en;
+	bool				mute_support;
+	struct reset_control		*reset_ctl;
+};
+
+void mtk_merge_start(struct device *dev)
+{
+	mtk_merge_start_cmdq(dev, NULL);
+}
+
+void mtk_merge_stop(struct device *dev)
+{
+	mtk_merge_stop_cmdq(dev, NULL);
+}
+
+void mtk_merge_start_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_merge *priv = dev_get_drvdata(dev);
+
+	if (priv->mute_support)
+		mtk_ddp_write(cmdq_pkt, 0x0, &priv->cmdq_reg, priv->regs,
+			      DISP_REG_MERGE_MUTE_0);
+
+	mtk_ddp_write(cmdq_pkt, 1, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CTRL);
+}
+
+void mtk_merge_stop_cmdq(struct device *dev, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_merge *priv = dev_get_drvdata(dev);
+
+	if (priv->mute_support)
+		mtk_ddp_write(cmdq_pkt, 0x1, &priv->cmdq_reg, priv->regs,
+			      DISP_REG_MERGE_MUTE_0);
+
+	mtk_ddp_write(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CTRL);
+
+	if (!cmdq_pkt && priv->async_clk)
+		reset_control_reset(priv->reset_ctl);
+}
+
+static void mtk_merge_fifo_setting(struct mtk_disp_merge *priv,
+				   struct cmdq_pkt *cmdq_pkt)
+{
+	mtk_ddp_write(cmdq_pkt, ULTRA_EN | PREULTRA_EN,
+		      &priv->cmdq_reg, priv->regs, DISP_REG_MERGE_CFG_36);
+
+	mtk_ddp_write_mask(cmdq_pkt, BUFFER_MODE,
+			   &priv->cmdq_reg, priv->regs, DISP_REG_MERGE_CFG_37,
+			   FLD_BUFFER_MODE);
+
+	mtk_ddp_write_mask(cmdq_pkt, ULTRA_TH_LOW | ULTRA_TH_HIGH << 16,
+			   &priv->cmdq_reg, priv->regs, DISP_REG_MERGE_CFG_40,
+			   FLD_ULTRA_TH_LOW | FLD_ULTRA_TH_HIGH);
+
+	mtk_ddp_write_mask(cmdq_pkt, PREULTRA_TH_LOW | PREULTRA_TH_HIGH << 16,
+			   &priv->cmdq_reg, priv->regs, DISP_REG_MERGE_CFG_41,
+			   FLD_PREULTRA_TH_LOW | FLD_PREULTRA_TH_HIGH);
+}
+
+void mtk_merge_config(struct device *dev, unsigned int w,
+		      unsigned int h, unsigned int vrefresh,
+		      unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	mtk_merge_advance_config(dev, w, 0, h, vrefresh, bpc, cmdq_pkt);
+}
+
+void mtk_merge_advance_config(struct device *dev, unsigned int l_w, unsigned int r_w,
+			      unsigned int h, unsigned int vrefresh, unsigned int bpc,
+			      struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_merge *priv = dev_get_drvdata(dev);
+	unsigned int mode = CFG_10_10_1PI_2PO_BUF_MODE;
+
+	if (!h || !l_w) {
+		dev_err(dev, "%s: input width(%d) or height(%d) is invalid\n", __func__, l_w, h);
+		return;
+	}
+
+	if (priv->fifo_en) {
+		mtk_merge_fifo_setting(priv, cmdq_pkt);
+		mode = CFG_10_10_2PI_2PO_BUF_MODE;
+	}
+
+	if (r_w)
+		mode = CFG_11_10_1PI_2PO_MERGE;
+
+	mtk_ddp_write(cmdq_pkt, h << 16 | l_w, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CFG_0);
+	mtk_ddp_write(cmdq_pkt, h << 16 | r_w, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CFG_1);
+	mtk_ddp_write(cmdq_pkt, h << 16 | (l_w + r_w), &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CFG_4);
+	/*
+	 * DISP_REG_MERGE_CFG_24 is merge SRAM0 w/h
+	 * DISP_REG_MERGE_CFG_25 is merge SRAM1 w/h.
+	 * If r_w > 0, the merge is in merge mode (input0 and input1 merge together),
+	 * the input0 goes to SRAM0, and input1 goes to SRAM1.
+	 * If r_w = 0, the merge is in buffer mode, the input goes through SRAM0 and
+	 * then to SRAM1. Both SRAM0 and SRAM1 are set to the same size.
+	 */
+	mtk_ddp_write(cmdq_pkt, h << 16 | l_w, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CFG_24);
+	if (r_w)
+		mtk_ddp_write(cmdq_pkt, h << 16 | r_w, &priv->cmdq_reg, priv->regs,
+			      DISP_REG_MERGE_CFG_25);
+	else
+		mtk_ddp_write(cmdq_pkt, h << 16 | l_w, &priv->cmdq_reg, priv->regs,
+			      DISP_REG_MERGE_CFG_25);
+
+	/*
+	 * DISP_REG_MERGE_CFG_26 and DISP_REG_MERGE_CFG_27 is only used in LR merge.
+	 * Only take effect when the merge is setting to merge mode.
+	 */
+	mtk_ddp_write(cmdq_pkt, h << 16 | l_w, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CFG_26);
+	mtk_ddp_write(cmdq_pkt, h << 16 | r_w, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_MERGE_CFG_27);
+
+	mtk_ddp_write_mask(cmdq_pkt, SWAP_MODE, &priv->cmdq_reg, priv->regs,
+			   DISP_REG_MERGE_CFG_10, FLD_SWAP_MODE);
+	mtk_ddp_write_mask(cmdq_pkt, mode, &priv->cmdq_reg, priv->regs,
+			   DISP_REG_MERGE_CFG_12, FLD_CFG_MERGE_MODE);
+}
+
+int mtk_merge_clk_enable(struct device *dev)
+{
+	int ret = 0;
+	struct mtk_disp_merge *priv = dev_get_drvdata(dev);
+
+	ret = clk_prepare_enable(priv->clk);
+	if (ret) {
+		dev_err(dev, "merge clk prepare enable failed\n");
+		return ret;
+	}
+
+	ret = clk_prepare_enable(priv->async_clk);
+	if (ret) {
+		/* should clean up the state of priv->clk */
+		clk_disable_unprepare(priv->clk);
+
+		dev_err(dev, "async clk prepare enable failed\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+void mtk_merge_clk_disable(struct device *dev)
+{
+	struct mtk_disp_merge *priv = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(priv->async_clk);
+	clk_disable_unprepare(priv->clk);
+}
+
+static int mtk_disp_merge_bind(struct device *dev, struct device *master,
+			       void *data)
+{
+	return 0;
+}
+
+static void mtk_disp_merge_unbind(struct device *dev, struct device *master,
+				  void *data)
+{
+}
+
+static const struct component_ops mtk_disp_merge_component_ops = {
+	.bind	= mtk_disp_merge_bind,
+	.unbind = mtk_disp_merge_unbind,
+};
+
+static int mtk_disp_merge_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct mtk_disp_merge *priv;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap merge\n");
+		return PTR_ERR(priv->regs);
+	}
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get merge clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	priv->async_clk = devm_clk_get_optional(dev, "merge_async");
+	if (IS_ERR(priv->async_clk)) {
+		dev_err(dev, "failed to get merge async clock\n");
+		return PTR_ERR(priv->async_clk);
+	}
+
+	if (priv->async_clk) {
+		priv->reset_ctl = devm_reset_control_get_optional_exclusive(dev, NULL);
+		if (IS_ERR(priv->reset_ctl))
+			return PTR_ERR(priv->reset_ctl);
+	}
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	priv->fifo_en = of_property_read_bool(dev->of_node,
+					      "mediatek,merge-fifo-en");
+
+	priv->mute_support = of_property_read_bool(dev->of_node,
+						   "mediatek,merge-mute");
+	platform_set_drvdata(pdev, priv);
+
+	ret = component_add(dev, &mtk_disp_merge_component_ops);
+	if (ret != 0)
+		dev_err(dev, "Failed to add component: %d\n", ret);
+
+	return ret;
+}
+
+static int mtk_disp_merge_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_merge_component_ops);
+
+	return 0;
+}
+
+static const struct of_device_id mtk_disp_merge_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt8195-disp-merge", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, mtk_disp_merge_driver_dt_match);
+
+struct platform_driver mtk_disp_merge_driver = {
+	.probe = mtk_disp_merge_probe,
+	.remove = mtk_disp_merge_remove,
+	.driver = {
+		.name = "mediatek-disp-merge",
+		.owner = THIS_MODULE,
+		.of_match_table = mtk_disp_merge_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
new file mode 100644
index 000000000..002b0f6ca
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -0,0 +1,520 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#include <drm/drm_blend.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_REG_OVL_INTEN			0x0004
+#define OVL_FME_CPL_INT					BIT(1)
+#define DISP_REG_OVL_INTSTA			0x0008
+#define DISP_REG_OVL_EN				0x000c
+#define DISP_REG_OVL_RST			0x0014
+#define DISP_REG_OVL_ROI_SIZE			0x0020
+#define DISP_REG_OVL_DATAPATH_CON		0x0024
+#define OVL_LAYER_SMI_ID_EN				BIT(0)
+#define OVL_BGCLR_SEL_IN				BIT(2)
+#define DISP_REG_OVL_ROI_BGCLR			0x0028
+#define DISP_REG_OVL_SRC_CON			0x002c
+#define DISP_REG_OVL_CON(n)			(0x0030 + 0x20 * (n))
+#define DISP_REG_OVL_SRC_SIZE(n)		(0x0038 + 0x20 * (n))
+#define DISP_REG_OVL_OFFSET(n)			(0x003c + 0x20 * (n))
+#define DISP_REG_OVL_PITCH(n)			(0x0044 + 0x20 * (n))
+#define DISP_REG_OVL_RDMA_CTRL(n)		(0x00c0 + 0x20 * (n))
+#define DISP_REG_OVL_RDMA_GMC(n)		(0x00c8 + 0x20 * (n))
+#define DISP_REG_OVL_ADDR_MT2701		0x0040
+#define DISP_REG_OVL_ADDR_MT8173		0x0f40
+#define DISP_REG_OVL_ADDR(ovl, n)		((ovl)->data->addr + 0x20 * (n))
+
+#define GMC_THRESHOLD_BITS	16
+#define GMC_THRESHOLD_HIGH	((1 << GMC_THRESHOLD_BITS) / 4)
+#define GMC_THRESHOLD_LOW	((1 << GMC_THRESHOLD_BITS) / 8)
+
+#define OVL_CON_BYTE_SWAP	BIT(24)
+#define OVL_CON_MTX_YUV_TO_RGB	(6 << 16)
+#define OVL_CON_CLRFMT_RGB	(1 << 12)
+#define OVL_CON_CLRFMT_RGBA8888	(2 << 12)
+#define OVL_CON_CLRFMT_ARGB8888	(3 << 12)
+#define OVL_CON_CLRFMT_UYVY	(4 << 12)
+#define OVL_CON_CLRFMT_YUYV	(5 << 12)
+#define OVL_CON_CLRFMT_RGB565(ovl)	((ovl)->data->fmt_rgb565_is_0 ? \
+					0 : OVL_CON_CLRFMT_RGB)
+#define OVL_CON_CLRFMT_RGB888(ovl)	((ovl)->data->fmt_rgb565_is_0 ? \
+					OVL_CON_CLRFMT_RGB : 0)
+#define	OVL_CON_AEN		BIT(8)
+#define	OVL_CON_ALPHA		0xff
+#define	OVL_CON_VIRT_FLIP	BIT(9)
+#define	OVL_CON_HORZ_FLIP	BIT(10)
+
+struct mtk_disp_ovl_data {
+	unsigned int addr;
+	unsigned int gmc_bits;
+	unsigned int layer_nr;
+	bool fmt_rgb565_is_0;
+	bool smi_id_en;
+};
+
+/*
+ * struct mtk_disp_ovl - DISP_OVL driver structure
+ * @crtc: associated crtc to report vblank events to
+ * @data: platform data
+ */
+struct mtk_disp_ovl {
+	struct drm_crtc			*crtc;
+	struct clk			*clk;
+	void __iomem			*regs;
+	struct cmdq_client_reg		cmdq_reg;
+	const struct mtk_disp_ovl_data	*data;
+	void				(*vblank_cb)(void *data);
+	void				*vblank_cb_data;
+};
+
+static irqreturn_t mtk_disp_ovl_irq_handler(int irq, void *dev_id)
+{
+	struct mtk_disp_ovl *priv = dev_id;
+
+	/* Clear frame completion interrupt */
+	writel(0x0, priv->regs + DISP_REG_OVL_INTSTA);
+
+	if (!priv->vblank_cb)
+		return IRQ_NONE;
+
+	priv->vblank_cb(priv->vblank_cb_data);
+
+	return IRQ_HANDLED;
+}
+
+void mtk_ovl_register_vblank_cb(struct device *dev,
+				void (*vblank_cb)(void *),
+				void *vblank_cb_data)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	ovl->vblank_cb = vblank_cb;
+	ovl->vblank_cb_data = vblank_cb_data;
+}
+
+void mtk_ovl_unregister_vblank_cb(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	ovl->vblank_cb = NULL;
+	ovl->vblank_cb_data = NULL;
+}
+
+void mtk_ovl_enable_vblank(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	writel(0x0, ovl->regs + DISP_REG_OVL_INTSTA);
+	writel_relaxed(OVL_FME_CPL_INT, ovl->regs + DISP_REG_OVL_INTEN);
+}
+
+void mtk_ovl_disable_vblank(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, ovl->regs + DISP_REG_OVL_INTEN);
+}
+
+int mtk_ovl_clk_enable(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(ovl->clk);
+}
+
+void mtk_ovl_clk_disable(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(ovl->clk);
+}
+
+void mtk_ovl_start(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	if (ovl->data->smi_id_en) {
+		unsigned int reg;
+
+		reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+		reg = reg | OVL_LAYER_SMI_ID_EN;
+		writel_relaxed(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+	}
+	writel_relaxed(0x1, ovl->regs + DISP_REG_OVL_EN);
+}
+
+void mtk_ovl_stop(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, ovl->regs + DISP_REG_OVL_EN);
+	if (ovl->data->smi_id_en) {
+		unsigned int reg;
+
+		reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+		reg = reg & ~OVL_LAYER_SMI_ID_EN;
+		writel_relaxed(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+	}
+
+}
+
+void mtk_ovl_config(struct device *dev, unsigned int w,
+		    unsigned int h, unsigned int vrefresh,
+		    unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	if (w != 0 && h != 0)
+		mtk_ddp_write_relaxed(cmdq_pkt, h << 16 | w, &ovl->cmdq_reg, ovl->regs,
+				      DISP_REG_OVL_ROI_SIZE);
+	mtk_ddp_write_relaxed(cmdq_pkt, 0x0, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_ROI_BGCLR);
+
+	mtk_ddp_write(cmdq_pkt, 0x1, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_RST);
+	mtk_ddp_write(cmdq_pkt, 0x0, &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_RST);
+}
+
+unsigned int mtk_ovl_layer_nr(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	return ovl->data->layer_nr;
+}
+
+unsigned int mtk_ovl_supported_rotations(struct device *dev)
+{
+	return DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_180 |
+	       DRM_MODE_REFLECT_X | DRM_MODE_REFLECT_Y;
+}
+
+int mtk_ovl_layer_check(struct device *dev, unsigned int idx,
+			struct mtk_plane_state *mtk_state)
+{
+	struct drm_plane_state *state = &mtk_state->base;
+	unsigned int rotation = 0;
+
+	rotation = drm_rotation_simplify(state->rotation,
+					 DRM_MODE_ROTATE_0 |
+					 DRM_MODE_REFLECT_X |
+					 DRM_MODE_REFLECT_Y);
+	rotation &= ~DRM_MODE_ROTATE_0;
+
+	/* We can only do reflection, not rotation */
+	if ((rotation & DRM_MODE_ROTATE_MASK) != 0)
+		return -EINVAL;
+
+	/*
+	 * TODO: Rotating/reflecting YUV buffers is not supported at this time.
+	 *	 Only RGB[AX] variants are supported.
+	 */
+	if (state->fb->format->is_yuv && rotation != 0)
+		return -EINVAL;
+
+	state->rotation = rotation;
+
+	return 0;
+}
+
+void mtk_ovl_layer_on(struct device *dev, unsigned int idx,
+		      struct cmdq_pkt *cmdq_pkt)
+{
+	unsigned int gmc_thrshd_l;
+	unsigned int gmc_thrshd_h;
+	unsigned int gmc_value;
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, 0x1, &ovl->cmdq_reg, ovl->regs,
+		      DISP_REG_OVL_RDMA_CTRL(idx));
+	gmc_thrshd_l = GMC_THRESHOLD_LOW >>
+		      (GMC_THRESHOLD_BITS - ovl->data->gmc_bits);
+	gmc_thrshd_h = GMC_THRESHOLD_HIGH >>
+		      (GMC_THRESHOLD_BITS - ovl->data->gmc_bits);
+	if (ovl->data->gmc_bits == 10)
+		gmc_value = gmc_thrshd_h | gmc_thrshd_h << 16;
+	else
+		gmc_value = gmc_thrshd_l | gmc_thrshd_l << 8 |
+			    gmc_thrshd_h << 16 | gmc_thrshd_h << 24;
+	mtk_ddp_write(cmdq_pkt, gmc_value,
+		      &ovl->cmdq_reg, ovl->regs, DISP_REG_OVL_RDMA_GMC(idx));
+	mtk_ddp_write_mask(cmdq_pkt, BIT(idx), &ovl->cmdq_reg, ovl->regs,
+			   DISP_REG_OVL_SRC_CON, BIT(idx));
+}
+
+void mtk_ovl_layer_off(struct device *dev, unsigned int idx,
+		       struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+
+	mtk_ddp_write_mask(cmdq_pkt, 0, &ovl->cmdq_reg, ovl->regs,
+			   DISP_REG_OVL_SRC_CON, BIT(idx));
+	mtk_ddp_write(cmdq_pkt, 0, &ovl->cmdq_reg, ovl->regs,
+		      DISP_REG_OVL_RDMA_CTRL(idx));
+}
+
+static unsigned int ovl_fmt_convert(struct mtk_disp_ovl *ovl, unsigned int fmt)
+{
+	/* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX"
+	 * is defined in mediatek HW data sheet.
+	 * The alphabet order in XXX is no relation to data
+	 * arrangement in memory.
+	 */
+	switch (fmt) {
+	default:
+	case DRM_FORMAT_RGB565:
+		return OVL_CON_CLRFMT_RGB565(ovl);
+	case DRM_FORMAT_BGR565:
+		return OVL_CON_CLRFMT_RGB565(ovl) | OVL_CON_BYTE_SWAP;
+	case DRM_FORMAT_RGB888:
+		return OVL_CON_CLRFMT_RGB888(ovl);
+	case DRM_FORMAT_BGR888:
+		return OVL_CON_CLRFMT_RGB888(ovl) | OVL_CON_BYTE_SWAP;
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_RGBA8888:
+		return OVL_CON_CLRFMT_ARGB8888;
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_BGRA8888:
+		return OVL_CON_CLRFMT_ARGB8888 | OVL_CON_BYTE_SWAP;
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+		return OVL_CON_CLRFMT_RGBA8888;
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ABGR8888:
+		return OVL_CON_CLRFMT_RGBA8888 | OVL_CON_BYTE_SWAP;
+	case DRM_FORMAT_UYVY:
+		return OVL_CON_CLRFMT_UYVY | OVL_CON_MTX_YUV_TO_RGB;
+	case DRM_FORMAT_YUYV:
+		return OVL_CON_CLRFMT_YUYV | OVL_CON_MTX_YUV_TO_RGB;
+	}
+}
+
+void mtk_ovl_layer_config(struct device *dev, unsigned int idx,
+			  struct mtk_plane_state *state,
+			  struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+	struct mtk_plane_pending_state *pending = &state->pending;
+	unsigned int addr = pending->addr;
+	unsigned int pitch = pending->pitch & 0xffff;
+	unsigned int fmt = pending->format;
+	unsigned int offset = (pending->y << 16) | pending->x;
+	unsigned int src_size = (pending->height << 16) | pending->width;
+	unsigned int con;
+
+	if (!pending->enable) {
+		mtk_ovl_layer_off(dev, idx, cmdq_pkt);
+		return;
+	}
+
+	con = ovl_fmt_convert(ovl, fmt);
+	if (state->base.fb && state->base.fb->format->has_alpha)
+		con |= OVL_CON_AEN | OVL_CON_ALPHA;
+
+	if (pending->rotation & DRM_MODE_REFLECT_Y) {
+		con |= OVL_CON_VIRT_FLIP;
+		addr += (pending->height - 1) * pending->pitch;
+	}
+
+	if (pending->rotation & DRM_MODE_REFLECT_X) {
+		con |= OVL_CON_HORZ_FLIP;
+		addr += pending->pitch - 1;
+	}
+
+	mtk_ddp_write_relaxed(cmdq_pkt, con, &ovl->cmdq_reg, ovl->regs,
+			      DISP_REG_OVL_CON(idx));
+	mtk_ddp_write_relaxed(cmdq_pkt, pitch, &ovl->cmdq_reg, ovl->regs,
+			      DISP_REG_OVL_PITCH(idx));
+	mtk_ddp_write_relaxed(cmdq_pkt, src_size, &ovl->cmdq_reg, ovl->regs,
+			      DISP_REG_OVL_SRC_SIZE(idx));
+	mtk_ddp_write_relaxed(cmdq_pkt, offset, &ovl->cmdq_reg, ovl->regs,
+			      DISP_REG_OVL_OFFSET(idx));
+	mtk_ddp_write_relaxed(cmdq_pkt, addr, &ovl->cmdq_reg, ovl->regs,
+			      DISP_REG_OVL_ADDR(ovl, idx));
+
+	mtk_ovl_layer_on(dev, idx, cmdq_pkt);
+}
+
+void mtk_ovl_bgclr_in_on(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+	unsigned int reg;
+
+	reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+	reg = reg | OVL_BGCLR_SEL_IN;
+	writel(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+}
+
+void mtk_ovl_bgclr_in_off(struct device *dev)
+{
+	struct mtk_disp_ovl *ovl = dev_get_drvdata(dev);
+	unsigned int reg;
+
+	reg = readl(ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+	reg = reg & ~OVL_BGCLR_SEL_IN;
+	writel(reg, ovl->regs + DISP_REG_OVL_DATAPATH_CON);
+}
+
+static int mtk_disp_ovl_bind(struct device *dev, struct device *master,
+			     void *data)
+{
+	return 0;
+}
+
+static void mtk_disp_ovl_unbind(struct device *dev, struct device *master,
+				void *data)
+{
+}
+
+static const struct component_ops mtk_disp_ovl_component_ops = {
+	.bind	= mtk_disp_ovl_bind,
+	.unbind = mtk_disp_ovl_unbind,
+};
+
+static int mtk_disp_ovl_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_ovl *priv;
+	struct resource *res;
+	int irq;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get ovl clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap ovl\n");
+		return PTR_ERR(priv->regs);
+	}
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	priv->data = of_device_get_match_data(dev);
+	platform_set_drvdata(pdev, priv);
+
+	ret = devm_request_irq(dev, irq, mtk_disp_ovl_irq_handler,
+			       IRQF_TRIGGER_NONE, dev_name(dev), priv);
+	if (ret < 0) {
+		dev_err(dev, "Failed to request irq %d: %d\n", irq, ret);
+		return ret;
+	}
+
+	pm_runtime_enable(dev);
+
+	ret = component_add(dev, &mtk_disp_ovl_component_ops);
+	if (ret) {
+		pm_runtime_disable(dev);
+		dev_err(dev, "Failed to add component: %d\n", ret);
+	}
+
+	return ret;
+}
+
+static int mtk_disp_ovl_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_ovl_component_ops);
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct mtk_disp_ovl_data mt2701_ovl_driver_data = {
+	.addr = DISP_REG_OVL_ADDR_MT2701,
+	.gmc_bits = 8,
+	.layer_nr = 4,
+	.fmt_rgb565_is_0 = false,
+};
+
+static const struct mtk_disp_ovl_data mt8173_ovl_driver_data = {
+	.addr = DISP_REG_OVL_ADDR_MT8173,
+	.gmc_bits = 8,
+	.layer_nr = 4,
+	.fmt_rgb565_is_0 = true,
+};
+
+static const struct mtk_disp_ovl_data mt8183_ovl_driver_data = {
+	.addr = DISP_REG_OVL_ADDR_MT8173,
+	.gmc_bits = 10,
+	.layer_nr = 4,
+	.fmt_rgb565_is_0 = true,
+};
+
+static const struct mtk_disp_ovl_data mt8183_ovl_2l_driver_data = {
+	.addr = DISP_REG_OVL_ADDR_MT8173,
+	.gmc_bits = 10,
+	.layer_nr = 2,
+	.fmt_rgb565_is_0 = true,
+};
+
+static const struct mtk_disp_ovl_data mt8192_ovl_driver_data = {
+	.addr = DISP_REG_OVL_ADDR_MT8173,
+	.gmc_bits = 10,
+	.layer_nr = 4,
+	.fmt_rgb565_is_0 = true,
+	.smi_id_en = true,
+};
+
+static const struct mtk_disp_ovl_data mt8192_ovl_2l_driver_data = {
+	.addr = DISP_REG_OVL_ADDR_MT8173,
+	.gmc_bits = 10,
+	.layer_nr = 2,
+	.fmt_rgb565_is_0 = true,
+	.smi_id_en = true,
+};
+
+static const struct of_device_id mtk_disp_ovl_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt2701-disp-ovl",
+	  .data = &mt2701_ovl_driver_data},
+	{ .compatible = "mediatek,mt8173-disp-ovl",
+	  .data = &mt8173_ovl_driver_data},
+	{ .compatible = "mediatek,mt8183-disp-ovl",
+	  .data = &mt8183_ovl_driver_data},
+	{ .compatible = "mediatek,mt8183-disp-ovl-2l",
+	  .data = &mt8183_ovl_2l_driver_data},
+	{ .compatible = "mediatek,mt8192-disp-ovl",
+	  .data = &mt8192_ovl_driver_data},
+	{ .compatible = "mediatek,mt8192-disp-ovl-2l",
+	  .data = &mt8192_ovl_2l_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_ovl_driver_dt_match);
+
+struct platform_driver mtk_disp_ovl_driver = {
+	.probe		= mtk_disp_ovl_probe,
+	.remove		= mtk_disp_ovl_remove,
+	.driver		= {
+		.name	= "mediatek-disp-ovl",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_ovl_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_rdma.c b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
new file mode 100644
index 000000000..0ec2e4049
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_disp_rdma.c
@@ -0,0 +1,398 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#include <drm/drm_fourcc.h>
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DISP_REG_RDMA_INT_ENABLE		0x0000
+#define DISP_REG_RDMA_INT_STATUS		0x0004
+#define RDMA_TARGET_LINE_INT				BIT(5)
+#define RDMA_FIFO_UNDERFLOW_INT				BIT(4)
+#define RDMA_EOF_ABNORMAL_INT				BIT(3)
+#define RDMA_FRAME_END_INT				BIT(2)
+#define RDMA_FRAME_START_INT				BIT(1)
+#define RDMA_REG_UPDATE_INT				BIT(0)
+#define DISP_REG_RDMA_GLOBAL_CON		0x0010
+#define RDMA_ENGINE_EN					BIT(0)
+#define RDMA_MODE_MEMORY				BIT(1)
+#define DISP_REG_RDMA_SIZE_CON_0		0x0014
+#define RDMA_MATRIX_ENABLE				BIT(17)
+#define RDMA_MATRIX_INT_MTX_SEL				GENMASK(23, 20)
+#define RDMA_MATRIX_INT_MTX_BT601_to_RGB		(6 << 20)
+#define DISP_REG_RDMA_SIZE_CON_1		0x0018
+#define DISP_REG_RDMA_TARGET_LINE		0x001c
+#define DISP_RDMA_MEM_CON			0x0024
+#define MEM_MODE_INPUT_FORMAT_RGB565			(0x000 << 4)
+#define MEM_MODE_INPUT_FORMAT_RGB888			(0x001 << 4)
+#define MEM_MODE_INPUT_FORMAT_RGBA8888			(0x002 << 4)
+#define MEM_MODE_INPUT_FORMAT_ARGB8888			(0x003 << 4)
+#define MEM_MODE_INPUT_FORMAT_UYVY			(0x004 << 4)
+#define MEM_MODE_INPUT_FORMAT_YUYV			(0x005 << 4)
+#define MEM_MODE_INPUT_SWAP				BIT(8)
+#define DISP_RDMA_MEM_SRC_PITCH			0x002c
+#define DISP_RDMA_MEM_GMC_SETTING_0		0x0030
+#define DISP_REG_RDMA_FIFO_CON			0x0040
+#define RDMA_FIFO_UNDERFLOW_EN				BIT(31)
+#define RDMA_FIFO_PSEUDO_SIZE(bytes)			(((bytes) / 16) << 16)
+#define RDMA_OUTPUT_VALID_FIFO_THRESHOLD(bytes)		((bytes) / 16)
+#define RDMA_FIFO_SIZE(rdma)			((rdma)->data->fifo_size)
+#define DISP_RDMA_MEM_START_ADDR		0x0f00
+
+#define RDMA_MEM_GMC				0x40402020
+
+struct mtk_disp_rdma_data {
+	unsigned int fifo_size;
+};
+
+/*
+ * struct mtk_disp_rdma - DISP_RDMA driver structure
+ * @data: local driver data
+ */
+struct mtk_disp_rdma {
+	struct clk			*clk;
+	void __iomem			*regs;
+	struct cmdq_client_reg		cmdq_reg;
+	const struct mtk_disp_rdma_data	*data;
+	void				(*vblank_cb)(void *data);
+	void				*vblank_cb_data;
+	u32				fifo_size;
+};
+
+static irqreturn_t mtk_disp_rdma_irq_handler(int irq, void *dev_id)
+{
+	struct mtk_disp_rdma *priv = dev_id;
+
+	/* Clear frame completion interrupt */
+	writel(0x0, priv->regs + DISP_REG_RDMA_INT_STATUS);
+
+	if (!priv->vblank_cb)
+		return IRQ_NONE;
+
+	priv->vblank_cb(priv->vblank_cb_data);
+
+	return IRQ_HANDLED;
+}
+
+static void rdma_update_bits(struct device *dev, unsigned int reg,
+			     unsigned int mask, unsigned int val)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+	unsigned int tmp = readl(rdma->regs + reg);
+
+	tmp = (tmp & ~mask) | (val & mask);
+	writel(tmp, rdma->regs + reg);
+}
+
+void mtk_rdma_register_vblank_cb(struct device *dev,
+				 void (*vblank_cb)(void *),
+				 void *vblank_cb_data)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	rdma->vblank_cb = vblank_cb;
+	rdma->vblank_cb_data = vblank_cb_data;
+}
+
+void mtk_rdma_unregister_vblank_cb(struct device *dev)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	rdma->vblank_cb = NULL;
+	rdma->vblank_cb_data = NULL;
+}
+
+void mtk_rdma_enable_vblank(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT,
+			 RDMA_FRAME_END_INT);
+}
+
+void mtk_rdma_disable_vblank(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT, 0);
+}
+
+int mtk_rdma_clk_enable(struct device *dev)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(rdma->clk);
+}
+
+void mtk_rdma_clk_disable(struct device *dev)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(rdma->clk);
+}
+
+void mtk_rdma_start(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN,
+			 RDMA_ENGINE_EN);
+}
+
+void mtk_rdma_stop(struct device *dev)
+{
+	rdma_update_bits(dev, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN, 0);
+}
+
+void mtk_rdma_config(struct device *dev, unsigned int width,
+		     unsigned int height, unsigned int vrefresh,
+		     unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	unsigned int threshold;
+	unsigned int reg;
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+	u32 rdma_fifo_size;
+
+	mtk_ddp_write_mask(cmdq_pkt, width, &rdma->cmdq_reg, rdma->regs,
+			   DISP_REG_RDMA_SIZE_CON_0, 0xfff);
+	mtk_ddp_write_mask(cmdq_pkt, height, &rdma->cmdq_reg, rdma->regs,
+			   DISP_REG_RDMA_SIZE_CON_1, 0xfffff);
+
+	if (rdma->fifo_size)
+		rdma_fifo_size = rdma->fifo_size;
+	else
+		rdma_fifo_size = RDMA_FIFO_SIZE(rdma);
+
+	/*
+	 * Enable FIFO underflow since DSI and DPI can't be blocked.
+	 * Keep the FIFO pseudo size reset default of 8 KiB. Set the
+	 * output threshold to 70% of max fifo size to make sure the
+	 * threhold will not overflow
+	 */
+	threshold = rdma_fifo_size * 7 / 10;
+	reg = RDMA_FIFO_UNDERFLOW_EN |
+	      RDMA_FIFO_PSEUDO_SIZE(rdma_fifo_size) |
+	      RDMA_OUTPUT_VALID_FIFO_THRESHOLD(threshold);
+	mtk_ddp_write(cmdq_pkt, reg, &rdma->cmdq_reg, rdma->regs, DISP_REG_RDMA_FIFO_CON);
+}
+
+static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma,
+				     unsigned int fmt)
+{
+	/* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX"
+	 * is defined in mediatek HW data sheet.
+	 * The alphabet order in XXX is no relation to data
+	 * arrangement in memory.
+	 */
+	switch (fmt) {
+	default:
+	case DRM_FORMAT_RGB565:
+		return MEM_MODE_INPUT_FORMAT_RGB565;
+	case DRM_FORMAT_BGR565:
+		return MEM_MODE_INPUT_FORMAT_RGB565 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_RGB888:
+		return MEM_MODE_INPUT_FORMAT_RGB888;
+	case DRM_FORMAT_BGR888:
+		return MEM_MODE_INPUT_FORMAT_RGB888 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_RGBA8888:
+		return MEM_MODE_INPUT_FORMAT_ARGB8888;
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_BGRA8888:
+		return MEM_MODE_INPUT_FORMAT_ARGB8888 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+		return MEM_MODE_INPUT_FORMAT_RGBA8888;
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ABGR8888:
+		return MEM_MODE_INPUT_FORMAT_RGBA8888 | MEM_MODE_INPUT_SWAP;
+	case DRM_FORMAT_UYVY:
+		return MEM_MODE_INPUT_FORMAT_UYVY;
+	case DRM_FORMAT_YUYV:
+		return MEM_MODE_INPUT_FORMAT_YUYV;
+	}
+}
+
+unsigned int mtk_rdma_layer_nr(struct device *dev)
+{
+	return 1;
+}
+
+void mtk_rdma_layer_config(struct device *dev, unsigned int idx,
+			   struct mtk_plane_state *state,
+			   struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_disp_rdma *rdma = dev_get_drvdata(dev);
+	struct mtk_plane_pending_state *pending = &state->pending;
+	unsigned int addr = pending->addr;
+	unsigned int pitch = pending->pitch & 0xffff;
+	unsigned int fmt = pending->format;
+	unsigned int con;
+
+	con = rdma_fmt_convert(rdma, fmt);
+	mtk_ddp_write_relaxed(cmdq_pkt, con, &rdma->cmdq_reg, rdma->regs, DISP_RDMA_MEM_CON);
+
+	if (fmt == DRM_FORMAT_UYVY || fmt == DRM_FORMAT_YUYV) {
+		mtk_ddp_write_mask(cmdq_pkt, RDMA_MATRIX_ENABLE, &rdma->cmdq_reg, rdma->regs,
+				   DISP_REG_RDMA_SIZE_CON_0,
+				   RDMA_MATRIX_ENABLE);
+		mtk_ddp_write_mask(cmdq_pkt, RDMA_MATRIX_INT_MTX_BT601_to_RGB,
+				   &rdma->cmdq_reg, rdma->regs, DISP_REG_RDMA_SIZE_CON_0,
+				   RDMA_MATRIX_INT_MTX_SEL);
+	} else {
+		mtk_ddp_write_mask(cmdq_pkt, 0, &rdma->cmdq_reg, rdma->regs,
+				   DISP_REG_RDMA_SIZE_CON_0,
+				   RDMA_MATRIX_ENABLE);
+	}
+	mtk_ddp_write_relaxed(cmdq_pkt, addr, &rdma->cmdq_reg, rdma->regs,
+			      DISP_RDMA_MEM_START_ADDR);
+	mtk_ddp_write_relaxed(cmdq_pkt, pitch, &rdma->cmdq_reg, rdma->regs,
+			      DISP_RDMA_MEM_SRC_PITCH);
+	mtk_ddp_write(cmdq_pkt, RDMA_MEM_GMC, &rdma->cmdq_reg, rdma->regs,
+		      DISP_RDMA_MEM_GMC_SETTING_0);
+	mtk_ddp_write_mask(cmdq_pkt, RDMA_MODE_MEMORY, &rdma->cmdq_reg, rdma->regs,
+			   DISP_REG_RDMA_GLOBAL_CON, RDMA_MODE_MEMORY);
+
+}
+
+static int mtk_disp_rdma_bind(struct device *dev, struct device *master,
+			      void *data)
+{
+	return 0;
+
+}
+
+static void mtk_disp_rdma_unbind(struct device *dev, struct device *master,
+				 void *data)
+{
+}
+
+static const struct component_ops mtk_disp_rdma_component_ops = {
+	.bind	= mtk_disp_rdma_bind,
+	.unbind = mtk_disp_rdma_unbind,
+};
+
+static int mtk_disp_rdma_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_disp_rdma *priv;
+	struct resource *res;
+	int irq;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get rdma clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap rdma\n");
+		return PTR_ERR(priv->regs);
+	}
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	if (of_find_property(dev->of_node, "mediatek,rdma-fifo-size", &ret)) {
+		ret = of_property_read_u32(dev->of_node,
+					   "mediatek,rdma-fifo-size",
+					   &priv->fifo_size);
+		if (ret) {
+			dev_err(dev, "Failed to get rdma fifo size\n");
+			return ret;
+		}
+	}
+
+	/* Disable and clear pending interrupts */
+	writel(0x0, priv->regs + DISP_REG_RDMA_INT_ENABLE);
+	writel(0x0, priv->regs + DISP_REG_RDMA_INT_STATUS);
+
+	ret = devm_request_irq(dev, irq, mtk_disp_rdma_irq_handler,
+			       IRQF_TRIGGER_NONE, dev_name(dev), priv);
+	if (ret < 0) {
+		dev_err(dev, "Failed to request irq %d: %d\n", irq, ret);
+		return ret;
+	}
+
+	priv->data = of_device_get_match_data(dev);
+
+	platform_set_drvdata(pdev, priv);
+
+	pm_runtime_enable(dev);
+
+	ret = component_add(dev, &mtk_disp_rdma_component_ops);
+	if (ret) {
+		pm_runtime_disable(dev);
+		dev_err(dev, "Failed to add component: %d\n", ret);
+	}
+
+	return ret;
+}
+
+static int mtk_disp_rdma_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_disp_rdma_component_ops);
+
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static const struct mtk_disp_rdma_data mt2701_rdma_driver_data = {
+	.fifo_size = SZ_4K,
+};
+
+static const struct mtk_disp_rdma_data mt8173_rdma_driver_data = {
+	.fifo_size = SZ_8K,
+};
+
+static const struct mtk_disp_rdma_data mt8183_rdma_driver_data = {
+	.fifo_size = 5 * SZ_1K,
+};
+
+static const struct mtk_disp_rdma_data mt8195_rdma_driver_data = {
+	.fifo_size = 1920,
+};
+
+static const struct of_device_id mtk_disp_rdma_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt2701-disp-rdma",
+	  .data = &mt2701_rdma_driver_data},
+	{ .compatible = "mediatek,mt8173-disp-rdma",
+	  .data = &mt8173_rdma_driver_data},
+	{ .compatible = "mediatek,mt8183-disp-rdma",
+	  .data = &mt8183_rdma_driver_data},
+	{ .compatible = "mediatek,mt8195-disp-rdma",
+	  .data = &mt8195_rdma_driver_data},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_disp_rdma_driver_dt_match);
+
+struct platform_driver mtk_disp_rdma_driver = {
+	.probe		= mtk_disp_rdma_probe,
+	.remove		= mtk_disp_rdma_remove,
+	.driver		= {
+		.name	= "mediatek-disp-rdma",
+		.owner	= THIS_MODULE,
+		.of_match_table = mtk_disp_rdma_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c b/drivers/gpu/drm/mediatek/mtk_dp.c
new file mode 100644
index 000000000..519e23a2a
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_dp.c
@@ -0,0 +1,2672 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019-2022 MediaTek Inc.
+ * Copyright (c) 2022 BayLibre
+ */
+
+#include <drm/display/drm_dp.h>
+#include <drm/display/drm_dp_helper.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_of.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+#include <linux/arm-smccc.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/media-bus-format.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/soc/mediatek/mtk_sip_svc.h>
+#include <sound/hdmi-codec.h>
+#include <video/videomode.h>
+
+#include "mtk_dp_reg.h"
+
+#define MTK_DP_SIP_CONTROL_AARCH32	MTK_SIP_SMC_CMD(0x523)
+#define MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE	(BIT(0) | BIT(5))
+#define MTK_DP_SIP_ATF_VIDEO_UNMUTE	BIT(5)
+
+#define MTK_DP_THREAD_CABLE_STATE_CHG	BIT(0)
+#define MTK_DP_THREAD_HPD_EVENT		BIT(1)
+
+#define MTK_DP_4P1T 4
+#define MTK_DP_HDE 2
+#define MTK_DP_PIX_PER_ADDR 2
+#define MTK_DP_AUX_WAIT_REPLY_COUNT 20
+#define MTK_DP_TBC_BUF_READ_START_ADDR 0x8
+#define MTK_DP_TRAIN_VOLTAGE_LEVEL_RETRY 5
+#define MTK_DP_TRAIN_DOWNSCALE_RETRY 10
+#define MTK_DP_VERSION 0x11
+#define MTK_DP_SDP_AUI 0x4
+
+enum {
+	MTK_DP_CAL_GLB_BIAS_TRIM = 0,
+	MTK_DP_CAL_CLKTX_IMPSE,
+	MTK_DP_CAL_LN_TX_IMPSEL_PMOS_0,
+	MTK_DP_CAL_LN_TX_IMPSEL_PMOS_1,
+	MTK_DP_CAL_LN_TX_IMPSEL_PMOS_2,
+	MTK_DP_CAL_LN_TX_IMPSEL_PMOS_3,
+	MTK_DP_CAL_LN_TX_IMPSEL_NMOS_0,
+	MTK_DP_CAL_LN_TX_IMPSEL_NMOS_1,
+	MTK_DP_CAL_LN_TX_IMPSEL_NMOS_2,
+	MTK_DP_CAL_LN_TX_IMPSEL_NMOS_3,
+	MTK_DP_CAL_MAX,
+};
+
+struct mtk_dp_train_info {
+	bool sink_ssc;
+	bool cable_plugged_in;
+	/* link_rate is in multiple of 0.27Gbps */
+	int link_rate;
+	int lane_count;
+	unsigned int channel_eq_pattern;
+};
+
+struct mtk_dp_audio_cfg {
+	bool detect_monitor;
+	int sad_count;
+	int sample_rate;
+	int word_length_bits;
+	int channels;
+};
+
+struct mtk_dp_info {
+	enum dp_pixelformat format;
+	struct videomode vm;
+	struct mtk_dp_audio_cfg audio_cur_cfg;
+};
+
+struct mtk_dp_efuse_fmt {
+	unsigned short idx;
+	unsigned short shift;
+	unsigned short mask;
+	unsigned short min_val;
+	unsigned short max_val;
+	unsigned short default_val;
+};
+
+struct mtk_dp {
+	bool enabled;
+	bool need_debounce;
+	u8 max_lanes;
+	u8 max_linkrate;
+	u8 rx_cap[DP_RECEIVER_CAP_SIZE];
+	u32 cal_data[MTK_DP_CAL_MAX];
+	u32 irq_thread_handle;
+	/* irq_thread_lock is used to protect irq_thread_handle */
+	spinlock_t irq_thread_lock;
+
+	struct device *dev;
+	struct drm_bridge bridge;
+	struct drm_bridge *next_bridge;
+	struct drm_connector *conn;
+	struct drm_device *drm_dev;
+	struct drm_dp_aux aux;
+
+	const struct mtk_dp_data *data;
+	struct mtk_dp_info info;
+	struct mtk_dp_train_info train_info;
+
+	struct platform_device *phy_dev;
+	struct phy *phy;
+	struct regmap *regs;
+	struct timer_list debounce_timer;
+
+	/* For audio */
+	bool audio_enable;
+	hdmi_codec_plugged_cb plugged_cb;
+	struct platform_device *audio_pdev;
+
+	struct device *codec_dev;
+	/* protect the plugged_cb as it's used in both bridge ops and audio */
+	struct mutex update_plugged_status_lock;
+};
+
+struct mtk_dp_data {
+	int bridge_type;
+	unsigned int smc_cmd;
+	const struct mtk_dp_efuse_fmt *efuse_fmt;
+	bool audio_supported;
+};
+
+static const struct mtk_dp_efuse_fmt mt8195_edp_efuse_fmt[MTK_DP_CAL_MAX] = {
+	[MTK_DP_CAL_GLB_BIAS_TRIM] = {
+		.idx = 3,
+		.shift = 27,
+		.mask = 0x1f,
+		.min_val = 1,
+		.max_val = 0x1e,
+		.default_val = 0xf,
+	},
+	[MTK_DP_CAL_CLKTX_IMPSE] = {
+		.idx = 0,
+		.shift = 9,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_0] = {
+		.idx = 2,
+		.shift = 28,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_1] = {
+		.idx = 2,
+		.shift = 20,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_2] = {
+		.idx = 2,
+		.shift = 12,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_3] = {
+		.idx = 2,
+		.shift = 4,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_0] = {
+		.idx = 2,
+		.shift = 24,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_1] = {
+		.idx = 2,
+		.shift = 16,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_2] = {
+		.idx = 2,
+		.shift = 8,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_3] = {
+		.idx = 2,
+		.shift = 0,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+};
+
+static const struct mtk_dp_efuse_fmt mt8195_dp_efuse_fmt[MTK_DP_CAL_MAX] = {
+	[MTK_DP_CAL_GLB_BIAS_TRIM] = {
+		.idx = 0,
+		.shift = 27,
+		.mask = 0x1f,
+		.min_val = 1,
+		.max_val = 0x1e,
+		.default_val = 0xf,
+	},
+	[MTK_DP_CAL_CLKTX_IMPSE] = {
+		.idx = 0,
+		.shift = 13,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_0] = {
+		.idx = 1,
+		.shift = 28,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_1] = {
+		.idx = 1,
+		.shift = 20,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_2] = {
+		.idx = 1,
+		.shift = 12,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_3] = {
+		.idx = 1,
+		.shift = 4,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_0] = {
+		.idx = 1,
+		.shift = 24,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_1] = {
+		.idx = 1,
+		.shift = 16,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_2] = {
+		.idx = 1,
+		.shift = 8,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+	[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_3] = {
+		.idx = 1,
+		.shift = 0,
+		.mask = 0xf,
+		.min_val = 1,
+		.max_val = 0xe,
+		.default_val = 0x8,
+	},
+};
+
+static struct regmap_config mtk_dp_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+	.max_register = SEC_OFFSET + 0x90,
+	.name = "mtk-dp-registers",
+};
+
+static struct mtk_dp *mtk_dp_from_bridge(struct drm_bridge *b)
+{
+	return container_of(b, struct mtk_dp, bridge);
+}
+
+static u32 mtk_dp_read(struct mtk_dp *mtk_dp, u32 offset)
+{
+	u32 read_val;
+	int ret;
+
+	ret = regmap_read(mtk_dp->regs, offset, &read_val);
+	if (ret) {
+		dev_err(mtk_dp->dev, "Failed to read register 0x%x: %d\n",
+			offset, ret);
+		return 0;
+	}
+
+	return read_val;
+}
+
+static int mtk_dp_write(struct mtk_dp *mtk_dp, u32 offset, u32 val)
+{
+	int ret = regmap_write(mtk_dp->regs, offset, val);
+
+	if (ret)
+		dev_err(mtk_dp->dev,
+			"Failed to write register 0x%x with value 0x%x\n",
+			offset, val);
+	return ret;
+}
+
+static int mtk_dp_update_bits(struct mtk_dp *mtk_dp, u32 offset,
+			      u32 val, u32 mask)
+{
+	int ret = regmap_update_bits(mtk_dp->regs, offset, mask, val);
+
+	if (ret)
+		dev_err(mtk_dp->dev,
+			"Failed to update register 0x%x with value 0x%x, mask 0x%x\n",
+			offset, val, mask);
+	return ret;
+}
+
+static void mtk_dp_bulk_16bit_write(struct mtk_dp *mtk_dp, u32 offset, u8 *buf,
+				    size_t length)
+{
+	int i;
+
+	/* 2 bytes per register */
+	for (i = 0; i < length; i += 2) {
+		u32 val = buf[i] | (i + 1 < length ? buf[i + 1] << 8 : 0);
+
+		if (mtk_dp_write(mtk_dp, offset + i * 2, val))
+			return;
+	}
+}
+
+static void mtk_dp_msa_bypass_enable(struct mtk_dp *mtk_dp, bool enable)
+{
+	u32 mask = HTOTAL_SEL_DP_ENC0_P0 | VTOTAL_SEL_DP_ENC0_P0 |
+		   HSTART_SEL_DP_ENC0_P0 | VSTART_SEL_DP_ENC0_P0 |
+		   HWIDTH_SEL_DP_ENC0_P0 | VHEIGHT_SEL_DP_ENC0_P0 |
+		   HSP_SEL_DP_ENC0_P0 | HSW_SEL_DP_ENC0_P0 |
+		   VSP_SEL_DP_ENC0_P0 | VSW_SEL_DP_ENC0_P0;
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3030, enable ? 0 : mask, mask);
+}
+
+static void mtk_dp_set_msa(struct mtk_dp *mtk_dp)
+{
+	struct drm_display_mode mode;
+	struct videomode *vm = &mtk_dp->info.vm;
+
+	drm_display_mode_from_videomode(vm, &mode);
+
+	/* horizontal */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3010,
+			   mode.htotal, HTOTAL_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3018,
+			   vm->hsync_len + vm->hback_porch,
+			   HSTART_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3028,
+			   vm->hsync_len, HSW_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3028,
+			   0, HSP_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3020,
+			   vm->hactive, HWIDTH_SW_DP_ENC0_P0_MASK);
+
+	/* vertical */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3014,
+			   mode.vtotal, VTOTAL_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_301C,
+			   vm->vsync_len + vm->vback_porch,
+			   VSTART_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_302C,
+			   vm->vsync_len, VSW_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_302C,
+			   0, VSP_SW_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3024,
+			   vm->vactive, VHEIGHT_SW_DP_ENC0_P0_MASK);
+
+	/* horizontal */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3064,
+			   vm->hactive, HDE_NUM_LAST_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3154,
+			   mode.htotal, PGEN_HTOTAL_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3158,
+			   vm->hfront_porch,
+			   PGEN_HSYNC_RISING_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_315C,
+			   vm->hsync_len,
+			   PGEN_HSYNC_PULSE_WIDTH_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3160,
+			   vm->hback_porch + vm->hsync_len,
+			   PGEN_HFDE_START_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3164,
+			   vm->hactive,
+			   PGEN_HFDE_ACTIVE_WIDTH_DP_ENC0_P0_MASK);
+
+	/* vertical */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3168,
+			   mode.vtotal,
+			   PGEN_VTOTAL_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_316C,
+			   vm->vfront_porch,
+			   PGEN_VSYNC_RISING_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3170,
+			   vm->vsync_len,
+			   PGEN_VSYNC_PULSE_WIDTH_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3174,
+			   vm->vback_porch + vm->vsync_len,
+			   PGEN_VFDE_START_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3178,
+			   vm->vactive,
+			   PGEN_VFDE_ACTIVE_WIDTH_DP_ENC0_P0_MASK);
+}
+
+static int mtk_dp_set_color_format(struct mtk_dp *mtk_dp,
+				   enum dp_pixelformat color_format)
+{
+	u32 val;
+
+	/* update MISC0 */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3034,
+			   color_format << DP_TEST_COLOR_FORMAT_SHIFT,
+			   DP_TEST_COLOR_FORMAT_MASK);
+
+	switch (color_format) {
+	case DP_PIXELFORMAT_YUV422:
+		val = PIXEL_ENCODE_FORMAT_DP_ENC0_P0_YCBCR422;
+		break;
+	case DP_PIXELFORMAT_RGB:
+		val = PIXEL_ENCODE_FORMAT_DP_ENC0_P0_RGB;
+		break;
+	default:
+		drm_warn(mtk_dp->drm_dev, "Unsupported color format: %d\n",
+			 color_format);
+		return -EINVAL;
+	}
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_303C,
+			   val, PIXEL_ENCODE_FORMAT_DP_ENC0_P0_MASK);
+	return 0;
+}
+
+static void mtk_dp_set_color_depth(struct mtk_dp *mtk_dp)
+{
+	/* Only support 8 bits currently */
+	/* Update MISC0 */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3034,
+			   DP_MSA_MISC_8_BPC, DP_TEST_BIT_DEPTH_MASK);
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_303C,
+			   VIDEO_COLOR_DEPTH_DP_ENC0_P0_8BIT,
+			   VIDEO_COLOR_DEPTH_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_config_mn_mode(struct mtk_dp *mtk_dp)
+{
+	/* 0: hw mode, 1: sw mode */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3004,
+			   0, VIDEO_M_CODE_SEL_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_set_sram_read_start(struct mtk_dp *mtk_dp, u32 val)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_303C,
+			   val, SRAM_START_READ_THRD_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_setup_encoder(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_303C,
+			   VIDEO_MN_GEN_EN_DP_ENC0_P0,
+			   VIDEO_MN_GEN_EN_DP_ENC0_P0);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3040,
+			   SDP_DOWN_CNT_DP_ENC0_P0_VAL,
+			   SDP_DOWN_CNT_INIT_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3364,
+			   SDP_DOWN_CNT_IN_HBLANK_DP_ENC1_P0_VAL,
+			   SDP_DOWN_CNT_INIT_IN_HBLANK_DP_ENC1_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3300,
+			   VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_VAL << 8,
+			   VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3364,
+			   FIFO_READ_START_POINT_DP_ENC1_P0_VAL << 12,
+			   FIFO_READ_START_POINT_DP_ENC1_P0_MASK);
+	mtk_dp_write(mtk_dp, MTK_DP_ENC1_P0_3368, DP_ENC1_P0_3368_VAL);
+}
+
+static void mtk_dp_pg_enable(struct mtk_dp *mtk_dp, bool enable)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3038,
+			   enable ? VIDEO_SOURCE_SEL_DP_ENC0_P0_MASK : 0,
+			   VIDEO_SOURCE_SEL_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_31B0,
+			   PGEN_PATTERN_SEL_VAL << 4, PGEN_PATTERN_SEL_MASK);
+}
+
+static void mtk_dp_audio_setup_channels(struct mtk_dp *mtk_dp,
+					struct mtk_dp_audio_cfg *cfg)
+{
+	u32 channel_enable_bits;
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3324,
+			   AUDIO_SOURCE_MUX_DP_ENC1_P0_DPRX,
+			   AUDIO_SOURCE_MUX_DP_ENC1_P0_MASK);
+
+	/* audio channel count change reset */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_33F4,
+			   DP_ENC_DUMMY_RW_1, DP_ENC_DUMMY_RW_1);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3304,
+			   AU_PRTY_REGEN_DP_ENC1_P0_MASK |
+			   AU_CH_STS_REGEN_DP_ENC1_P0_MASK |
+			   AUDIO_SAMPLE_PRSENT_REGEN_DP_ENC1_P0_MASK,
+			   AU_PRTY_REGEN_DP_ENC1_P0_MASK |
+			   AU_CH_STS_REGEN_DP_ENC1_P0_MASK |
+			   AUDIO_SAMPLE_PRSENT_REGEN_DP_ENC1_P0_MASK);
+
+	switch (cfg->channels) {
+	case 2:
+		channel_enable_bits = AUDIO_2CH_SEL_DP_ENC0_P0_MASK |
+				      AUDIO_2CH_EN_DP_ENC0_P0_MASK;
+		break;
+	case 8:
+	default:
+		channel_enable_bits = AUDIO_8CH_SEL_DP_ENC0_P0_MASK |
+				      AUDIO_8CH_EN_DP_ENC0_P0_MASK;
+		break;
+	}
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3088,
+			   channel_enable_bits | AU_EN_DP_ENC0_P0,
+			   AUDIO_2CH_SEL_DP_ENC0_P0_MASK |
+			   AUDIO_2CH_EN_DP_ENC0_P0_MASK |
+			   AUDIO_8CH_SEL_DP_ENC0_P0_MASK |
+			   AUDIO_8CH_EN_DP_ENC0_P0_MASK |
+			   AU_EN_DP_ENC0_P0);
+
+	/* audio channel count change reset */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_33F4, 0, DP_ENC_DUMMY_RW_1);
+
+	/* enable audio reset */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_33F4,
+			   DP_ENC_DUMMY_RW_1_AUDIO_RST_EN,
+			   DP_ENC_DUMMY_RW_1_AUDIO_RST_EN);
+}
+
+static void mtk_dp_audio_channel_status_set(struct mtk_dp *mtk_dp,
+					    struct mtk_dp_audio_cfg *cfg)
+{
+	struct snd_aes_iec958 iec = { 0 };
+
+	switch (cfg->sample_rate) {
+	case 32000:
+		iec.status[3] = IEC958_AES3_CON_FS_32000;
+		break;
+	case 44100:
+		iec.status[3] = IEC958_AES3_CON_FS_44100;
+		break;
+	case 48000:
+		iec.status[3] = IEC958_AES3_CON_FS_48000;
+		break;
+	case 88200:
+		iec.status[3] = IEC958_AES3_CON_FS_88200;
+		break;
+	case 96000:
+		iec.status[3] = IEC958_AES3_CON_FS_96000;
+		break;
+	case 192000:
+		iec.status[3] = IEC958_AES3_CON_FS_192000;
+		break;
+	default:
+		iec.status[3] = IEC958_AES3_CON_FS_NOTID;
+		break;
+	}
+
+	switch (cfg->word_length_bits) {
+	case 16:
+		iec.status[4] = IEC958_AES4_CON_WORDLEN_20_16;
+		break;
+	case 20:
+		iec.status[4] = IEC958_AES4_CON_WORDLEN_20_16 |
+				IEC958_AES4_CON_MAX_WORDLEN_24;
+		break;
+	case 24:
+		iec.status[4] = IEC958_AES4_CON_WORDLEN_24_20 |
+				IEC958_AES4_CON_MAX_WORDLEN_24;
+		break;
+	default:
+		iec.status[4] = IEC958_AES4_CON_WORDLEN_NOTID;
+	}
+
+	/* IEC 60958 consumer channel status bits */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_308C,
+			   0, CH_STATUS_0_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3090,
+			   iec.status[3] << 8, CH_STATUS_1_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3094,
+			   iec.status[4], CH_STATUS_2_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_audio_sdp_asp_set_channels(struct mtk_dp *mtk_dp,
+					      int channels)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_312C,
+			   (min(8, channels) - 1) << 8,
+			   ASP_HB2_DP_ENC0_P0_MASK | ASP_HB3_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_audio_set_divider(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_30BC,
+			   AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_2,
+			   AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_sdp_trigger_aui(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3280,
+			   MTK_DP_SDP_AUI, SDP_PACKET_TYPE_DP_ENC1_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3280,
+			   SDP_PACKET_W_DP_ENC1_P0, SDP_PACKET_W_DP_ENC1_P0);
+}
+
+static void mtk_dp_sdp_set_data(struct mtk_dp *mtk_dp, u8 *data_bytes)
+{
+	mtk_dp_bulk_16bit_write(mtk_dp, MTK_DP_ENC1_P0_3200,
+				data_bytes, 0x10);
+}
+
+static void mtk_dp_sdp_set_header_aui(struct mtk_dp *mtk_dp,
+				      struct dp_sdp_header *header)
+{
+	u32 db_addr = MTK_DP_ENC0_P0_30D8 + (MTK_DP_SDP_AUI - 1) * 8;
+
+	mtk_dp_bulk_16bit_write(mtk_dp, db_addr, (u8 *)header, 4);
+}
+
+static void mtk_dp_disable_sdp_aui(struct mtk_dp *mtk_dp)
+{
+	/* Disable periodic send */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_30A8 & 0xfffc, 0,
+			   0xff << ((MTK_DP_ENC0_P0_30A8 & 3) * 8));
+}
+
+static void mtk_dp_setup_sdp_aui(struct mtk_dp *mtk_dp,
+				 struct dp_sdp *sdp)
+{
+	u32 shift;
+
+	mtk_dp_sdp_set_data(mtk_dp, sdp->db);
+	mtk_dp_sdp_set_header_aui(mtk_dp, &sdp->sdp_header);
+	mtk_dp_disable_sdp_aui(mtk_dp);
+
+	shift = (MTK_DP_ENC0_P0_30A8 & 3) * 8;
+
+	mtk_dp_sdp_trigger_aui(mtk_dp);
+	/* Enable periodic sending */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_30A8 & 0xfffc,
+			   0x05 << shift, 0xff << shift);
+}
+
+static void mtk_dp_aux_irq_clear(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_write(mtk_dp, MTK_DP_AUX_P0_3640, DP_AUX_P0_3640_VAL);
+}
+
+static void mtk_dp_aux_set_cmd(struct mtk_dp *mtk_dp, u8 cmd, u32 addr)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3644,
+			   cmd, MCU_REQUEST_COMMAND_AUX_TX_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3648,
+			   addr, MCU_REQUEST_ADDRESS_LSB_AUX_TX_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_364C,
+			   addr >> 16, MCU_REQUEST_ADDRESS_MSB_AUX_TX_P0_MASK);
+}
+
+static void mtk_dp_aux_clear_fifo(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3650,
+			   MCU_ACK_TRAN_COMPLETE_AUX_TX_P0,
+			   MCU_ACK_TRAN_COMPLETE_AUX_TX_P0 |
+			   PHY_FIFO_RST_AUX_TX_P0_MASK |
+			   MCU_REQ_DATA_NUM_AUX_TX_P0_MASK);
+}
+
+static void mtk_dp_aux_request_ready(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3630,
+			   AUX_TX_REQUEST_READY_AUX_TX_P0,
+			   AUX_TX_REQUEST_READY_AUX_TX_P0);
+}
+
+static void mtk_dp_aux_fill_write_fifo(struct mtk_dp *mtk_dp, u8 *buf,
+				       size_t length)
+{
+	mtk_dp_bulk_16bit_write(mtk_dp, MTK_DP_AUX_P0_3708, buf, length);
+}
+
+static void mtk_dp_aux_read_rx_fifo(struct mtk_dp *mtk_dp, u8 *buf,
+				    size_t length, int read_delay)
+{
+	int read_pos;
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3620,
+			   0, AUX_RD_MODE_AUX_TX_P0_MASK);
+
+	for (read_pos = 0; read_pos < length; read_pos++) {
+		mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3620,
+				   AUX_RX_FIFO_READ_PULSE_TX_P0,
+				   AUX_RX_FIFO_READ_PULSE_TX_P0);
+
+		/* Hardware needs time to update the data */
+		usleep_range(read_delay, read_delay * 2);
+		buf[read_pos] = (u8)(mtk_dp_read(mtk_dp, MTK_DP_AUX_P0_3620) &
+				     AUX_RX_FIFO_READ_DATA_AUX_TX_P0_MASK);
+	}
+}
+
+static void mtk_dp_aux_set_length(struct mtk_dp *mtk_dp, size_t length)
+{
+	if (length > 0) {
+		mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3650,
+				   (length - 1) << 12,
+				   MCU_REQ_DATA_NUM_AUX_TX_P0_MASK);
+		mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_362C,
+				   0,
+				   AUX_NO_LENGTH_AUX_TX_P0 |
+				   AUX_TX_AUXTX_OV_EN_AUX_TX_P0_MASK |
+				   AUX_RESERVED_RW_0_AUX_TX_P0_MASK);
+	} else {
+		mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_362C,
+				   AUX_NO_LENGTH_AUX_TX_P0,
+				   AUX_NO_LENGTH_AUX_TX_P0 |
+				   AUX_TX_AUXTX_OV_EN_AUX_TX_P0_MASK |
+				   AUX_RESERVED_RW_0_AUX_TX_P0_MASK);
+	}
+}
+
+static int mtk_dp_aux_wait_for_completion(struct mtk_dp *mtk_dp, bool is_read)
+{
+	int wait_reply = MTK_DP_AUX_WAIT_REPLY_COUNT;
+
+	while (--wait_reply) {
+		u32 aux_irq_status;
+
+		if (is_read) {
+			u32 fifo_status = mtk_dp_read(mtk_dp, MTK_DP_AUX_P0_3618);
+
+			if (fifo_status &
+			    (AUX_RX_FIFO_WRITE_POINTER_AUX_TX_P0_MASK |
+			     AUX_RX_FIFO_FULL_AUX_TX_P0_MASK)) {
+				return 0;
+			}
+		}
+
+		aux_irq_status = mtk_dp_read(mtk_dp, MTK_DP_AUX_P0_3640);
+		if (aux_irq_status & AUX_RX_AUX_RECV_COMPLETE_IRQ_AUX_TX_P0)
+			return 0;
+
+		if (aux_irq_status & AUX_400US_TIMEOUT_IRQ_AUX_TX_P0)
+			return -ETIMEDOUT;
+
+		/* Give the hardware a chance to reach completion before retrying */
+		usleep_range(100, 500);
+	}
+
+	return -ETIMEDOUT;
+}
+
+static int mtk_dp_aux_do_transfer(struct mtk_dp *mtk_dp, bool is_read, u8 cmd,
+				  u32 addr, u8 *buf, size_t length, u8 *reply_cmd)
+{
+	int ret;
+
+	if (is_read && (length > DP_AUX_MAX_PAYLOAD_BYTES ||
+			(cmd == DP_AUX_NATIVE_READ && !length)))
+		return -EINVAL;
+
+	if (!is_read)
+		mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3704,
+				   AUX_TX_FIFO_NEW_MODE_EN_AUX_TX_P0,
+				   AUX_TX_FIFO_NEW_MODE_EN_AUX_TX_P0);
+
+	/* We need to clear fifo and irq before sending commands to the sink device. */
+	mtk_dp_aux_clear_fifo(mtk_dp);
+	mtk_dp_aux_irq_clear(mtk_dp);
+
+	mtk_dp_aux_set_cmd(mtk_dp, cmd, addr);
+	mtk_dp_aux_set_length(mtk_dp, length);
+
+	if (!is_read) {
+		if (length)
+			mtk_dp_aux_fill_write_fifo(mtk_dp, buf, length);
+
+		mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3704,
+				   AUX_TX_FIFO_WDATA_NEW_MODE_T_AUX_TX_P0_MASK,
+				   AUX_TX_FIFO_WDATA_NEW_MODE_T_AUX_TX_P0_MASK);
+	}
+
+	mtk_dp_aux_request_ready(mtk_dp);
+
+	/* Wait for feedback from sink device. */
+	ret = mtk_dp_aux_wait_for_completion(mtk_dp, is_read);
+
+	*reply_cmd = mtk_dp_read(mtk_dp, MTK_DP_AUX_P0_3624) &
+		     AUX_RX_REPLY_COMMAND_AUX_TX_P0_MASK;
+
+	if (ret) {
+		u32 phy_status = mtk_dp_read(mtk_dp, MTK_DP_AUX_P0_3628) &
+				 AUX_RX_PHY_STATE_AUX_TX_P0_MASK;
+		if (phy_status != AUX_RX_PHY_STATE_AUX_TX_P0_RX_IDLE) {
+			dev_err(mtk_dp->dev,
+				"AUX Rx Aux hang, need SW reset\n");
+			return -EIO;
+		}
+
+		return -ETIMEDOUT;
+	}
+
+	if (!length) {
+		mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_362C,
+				   0,
+				   AUX_NO_LENGTH_AUX_TX_P0 |
+				   AUX_TX_AUXTX_OV_EN_AUX_TX_P0_MASK |
+				   AUX_RESERVED_RW_0_AUX_TX_P0_MASK);
+	} else if (is_read) {
+		int read_delay;
+
+		if (cmd == (DP_AUX_I2C_READ | DP_AUX_I2C_MOT) ||
+		    cmd == DP_AUX_I2C_READ)
+			read_delay = 500;
+		else
+			read_delay = 100;
+
+		mtk_dp_aux_read_rx_fifo(mtk_dp, buf, length, read_delay);
+	}
+
+	return 0;
+}
+
+static void mtk_dp_set_swing_pre_emphasis(struct mtk_dp *mtk_dp, int lane_num,
+					  int swing_val, int preemphasis)
+{
+	u32 lane_shift = lane_num * DP_TX1_VOLT_SWING_SHIFT;
+
+	dev_dbg(mtk_dp->dev,
+		"link training: swing_val = 0x%x, pre-emphasis = 0x%x\n",
+		swing_val, preemphasis);
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_SWING_EMP,
+			   swing_val << (DP_TX0_VOLT_SWING_SHIFT + lane_shift),
+			   DP_TX0_VOLT_SWING_MASK << lane_shift);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_SWING_EMP,
+			   preemphasis << (DP_TX0_PRE_EMPH_SHIFT + lane_shift),
+			   DP_TX0_PRE_EMPH_MASK << lane_shift);
+}
+
+static void mtk_dp_reset_swing_pre_emphasis(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_SWING_EMP,
+			   0,
+			   DP_TX0_VOLT_SWING_MASK |
+			   DP_TX1_VOLT_SWING_MASK |
+			   DP_TX2_VOLT_SWING_MASK |
+			   DP_TX3_VOLT_SWING_MASK |
+			   DP_TX0_PRE_EMPH_MASK |
+			   DP_TX1_PRE_EMPH_MASK |
+			   DP_TX2_PRE_EMPH_MASK |
+			   DP_TX3_PRE_EMPH_MASK);
+}
+
+static u32 mtk_dp_swirq_get_clear(struct mtk_dp *mtk_dp)
+{
+	u32 irq_status = mtk_dp_read(mtk_dp, MTK_DP_TRANS_P0_35D0) &
+			 SW_IRQ_FINAL_STATUS_DP_TRANS_P0_MASK;
+
+	if (irq_status) {
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_35C8,
+				   irq_status, SW_IRQ_CLR_DP_TRANS_P0_MASK);
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_35C8,
+				   0, SW_IRQ_CLR_DP_TRANS_P0_MASK);
+	}
+
+	return irq_status;
+}
+
+static u32 mtk_dp_hwirq_get_clear(struct mtk_dp *mtk_dp)
+{
+	u32 irq_status = (mtk_dp_read(mtk_dp, MTK_DP_TRANS_P0_3418) &
+			  IRQ_STATUS_DP_TRANS_P0_MASK) >> 12;
+
+	if (irq_status) {
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3418,
+				   irq_status, IRQ_CLR_DP_TRANS_P0_MASK);
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3418,
+				   0, IRQ_CLR_DP_TRANS_P0_MASK);
+	}
+
+	return irq_status;
+}
+
+static void mtk_dp_hwirq_enable(struct mtk_dp *mtk_dp, bool enable)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3418,
+			   enable ? 0 :
+			   IRQ_MASK_DP_TRANS_P0_DISC_IRQ |
+			   IRQ_MASK_DP_TRANS_P0_CONN_IRQ |
+			   IRQ_MASK_DP_TRANS_P0_INT_IRQ,
+			   IRQ_MASK_DP_TRANS_P0_MASK);
+}
+
+static void mtk_dp_initialize_settings(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_342C,
+			   XTAL_FREQ_DP_TRANS_P0_DEFAULT,
+			   XTAL_FREQ_DP_TRANS_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3540,
+			   FEC_CLOCK_EN_MODE_DP_TRANS_P0,
+			   FEC_CLOCK_EN_MODE_DP_TRANS_P0);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_31EC,
+			   AUDIO_CH_SRC_SEL_DP_ENC0_P0,
+			   AUDIO_CH_SRC_SEL_DP_ENC0_P0);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_304C,
+			   0, SDP_VSYNC_RISING_MASK_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_IRQ_MASK,
+			   IRQ_MASK_AUX_TOP_IRQ, IRQ_MASK_AUX_TOP_IRQ);
+}
+
+static void mtk_dp_initialize_hpd_detect_settings(struct mtk_dp *mtk_dp)
+{
+	u32 val;
+	/* Debounce threshold */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3410,
+			   8, HPD_DEB_THD_DP_TRANS_P0_MASK);
+
+	val = (HPD_INT_THD_DP_TRANS_P0_LOWER_500US |
+	       HPD_INT_THD_DP_TRANS_P0_UPPER_1100US) << 4;
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3410,
+			   val, HPD_INT_THD_DP_TRANS_P0_MASK);
+
+	/*
+	 * Connect threshold 1.5ms + 5 x 0.1ms = 2ms
+	 * Disconnect threshold 1.5ms + 5 x 0.1ms = 2ms
+	 */
+	val = (5 << 8) | (5 << 12);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3410,
+			   val,
+			   HPD_DISC_THD_DP_TRANS_P0_MASK |
+			   HPD_CONN_THD_DP_TRANS_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3430,
+			   HPD_INT_THD_ECO_DP_TRANS_P0_HIGH_BOUND_EXT,
+			   HPD_INT_THD_ECO_DP_TRANS_P0_MASK);
+}
+
+static void mtk_dp_initialize_aux_settings(struct mtk_dp *mtk_dp)
+{
+	/* modify timeout threshold = 0x1595 */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_360C,
+			   AUX_TIMEOUT_THR_AUX_TX_P0_VAL,
+			   AUX_TIMEOUT_THR_AUX_TX_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3658,
+			   0, AUX_TX_OV_EN_AUX_TX_P0_MASK);
+	/* 25 for 26M */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3634,
+			   AUX_TX_OVER_SAMPLE_RATE_FOR_26M << 8,
+			   AUX_TX_OVER_SAMPLE_RATE_AUX_TX_P0_MASK);
+	/* 13 for 26M */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3614,
+			   AUX_RX_UI_CNT_THR_AUX_FOR_26M,
+			   AUX_RX_UI_CNT_THR_AUX_TX_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_37C8,
+			   MTK_ATOP_EN_AUX_TX_P0,
+			   MTK_ATOP_EN_AUX_TX_P0);
+}
+
+static void mtk_dp_initialize_digital_settings(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_304C,
+			   0, VBID_VIDEO_MUTE_DP_ENC0_P0_MASK);
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3368,
+			   BS2BS_MODE_DP_ENC1_P0_VAL << 12,
+			   BS2BS_MODE_DP_ENC1_P0_MASK);
+
+	/* dp tx encoder reset all sw */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3004,
+			   DP_TX_ENCODER_4P_RESET_SW_DP_ENC0_P0,
+			   DP_TX_ENCODER_4P_RESET_SW_DP_ENC0_P0);
+
+	/* Wait for sw reset to complete */
+	usleep_range(1000, 5000);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3004,
+			   0, DP_TX_ENCODER_4P_RESET_SW_DP_ENC0_P0);
+}
+
+static void mtk_dp_digital_sw_reset(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_340C,
+			   DP_TX_TRANSMITTER_4P_RESET_SW_DP_TRANS_P0,
+			   DP_TX_TRANSMITTER_4P_RESET_SW_DP_TRANS_P0);
+
+	/* Wait for sw reset to complete */
+	usleep_range(1000, 5000);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_340C,
+			   0, DP_TX_TRANSMITTER_4P_RESET_SW_DP_TRANS_P0);
+}
+
+static void mtk_dp_set_lanes(struct mtk_dp *mtk_dp, int lanes)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_35F0,
+			   lanes == 0 ? 0 : DP_TRANS_DUMMY_RW_0,
+			   DP_TRANS_DUMMY_RW_0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3000,
+			   lanes, LANE_NUM_DP_ENC0_P0_MASK);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_34A4,
+			   lanes << 2, LANE_NUM_DP_TRANS_P0_MASK);
+}
+
+static void mtk_dp_get_calibration_data(struct mtk_dp *mtk_dp)
+{
+	const struct mtk_dp_efuse_fmt *fmt;
+	struct device *dev = mtk_dp->dev;
+	struct nvmem_cell *cell;
+	u32 *cal_data = mtk_dp->cal_data;
+	u32 *buf;
+	int i;
+	size_t len;
+
+	cell = nvmem_cell_get(dev, "dp_calibration_data");
+	if (IS_ERR(cell)) {
+		dev_warn(dev, "Failed to get nvmem cell dp_calibration_data\n");
+		goto use_default_val;
+	}
+
+	buf = (u32 *)nvmem_cell_read(cell, &len);
+	nvmem_cell_put(cell);
+
+	if (IS_ERR(buf) || ((len / sizeof(u32)) != 4)) {
+		dev_warn(dev, "Failed to read nvmem_cell_read\n");
+
+		if (!IS_ERR(buf))
+			kfree(buf);
+
+		goto use_default_val;
+	}
+
+	for (i = 0; i < MTK_DP_CAL_MAX; i++) {
+		fmt = &mtk_dp->data->efuse_fmt[i];
+		cal_data[i] = (buf[fmt->idx] >> fmt->shift) & fmt->mask;
+
+		if (cal_data[i] < fmt->min_val || cal_data[i] > fmt->max_val) {
+			dev_warn(mtk_dp->dev, "Invalid efuse data, idx = %d\n", i);
+			kfree(buf);
+			goto use_default_val;
+		}
+	}
+	kfree(buf);
+
+	return;
+
+use_default_val:
+	dev_warn(mtk_dp->dev, "Use default calibration data\n");
+	for (i = 0; i < MTK_DP_CAL_MAX; i++)
+		cal_data[i] = mtk_dp->data->efuse_fmt[i].default_val;
+}
+
+static void mtk_dp_set_calibration_data(struct mtk_dp *mtk_dp)
+{
+	u32 *cal_data = mtk_dp->cal_data;
+
+	mtk_dp_update_bits(mtk_dp, DP_PHY_GLB_DPAUX_TX,
+			   cal_data[MTK_DP_CAL_CLKTX_IMPSE] << 20,
+			   RG_CKM_PT0_CKTX_IMPSEL);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_GLB_BIAS_GEN_00,
+			   cal_data[MTK_DP_CAL_GLB_BIAS_TRIM] << 16,
+			   RG_XTP_GLB_BIAS_INTR_CTRL);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_0,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_0] << 12,
+			   RG_XTP_LN0_TX_IMPSEL_PMOS);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_0,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_0] << 16,
+			   RG_XTP_LN0_TX_IMPSEL_NMOS);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_1,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_1] << 12,
+			   RG_XTP_LN1_TX_IMPSEL_PMOS);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_1,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_1] << 16,
+			   RG_XTP_LN1_TX_IMPSEL_NMOS);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_2,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_2] << 12,
+			   RG_XTP_LN2_TX_IMPSEL_PMOS);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_2,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_2] << 16,
+			   RG_XTP_LN2_TX_IMPSEL_NMOS);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_3,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_PMOS_3] << 12,
+			   RG_XTP_LN3_TX_IMPSEL_PMOS);
+	mtk_dp_update_bits(mtk_dp, DP_PHY_LANE_TX_3,
+			   cal_data[MTK_DP_CAL_LN_TX_IMPSEL_NMOS_3] << 16,
+			   RG_XTP_LN3_TX_IMPSEL_NMOS);
+}
+
+static int mtk_dp_phy_configure(struct mtk_dp *mtk_dp,
+				u32 link_rate, int lane_count)
+{
+	int ret;
+	union phy_configure_opts phy_opts = {
+		.dp = {
+			.link_rate = drm_dp_bw_code_to_link_rate(link_rate) / 100,
+			.set_rate = 1,
+			.lanes = lane_count,
+			.set_lanes = 1,
+			.ssc = mtk_dp->train_info.sink_ssc,
+		}
+	};
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE, DP_PWR_STATE_BANDGAP,
+			   DP_PWR_STATE_MASK);
+
+	ret = phy_configure(mtk_dp->phy, &phy_opts);
+	if (ret)
+		return ret;
+
+	mtk_dp_set_calibration_data(mtk_dp);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+			   DP_PWR_STATE_BANDGAP_TPLL_LANE, DP_PWR_STATE_MASK);
+
+	return 0;
+}
+
+static void mtk_dp_set_idle_pattern(struct mtk_dp *mtk_dp, bool enable)
+{
+	u32 val = POST_MISC_DATA_LANE0_OV_DP_TRANS_P0_MASK |
+		  POST_MISC_DATA_LANE1_OV_DP_TRANS_P0_MASK |
+		  POST_MISC_DATA_LANE2_OV_DP_TRANS_P0_MASK |
+		  POST_MISC_DATA_LANE3_OV_DP_TRANS_P0_MASK;
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3580,
+			   enable ? val : 0, val);
+}
+
+static void mtk_dp_train_set_pattern(struct mtk_dp *mtk_dp, int pattern)
+{
+	/* TPS1 */
+	if (pattern == 1)
+		mtk_dp_set_idle_pattern(mtk_dp, false);
+
+	mtk_dp_update_bits(mtk_dp,
+			   MTK_DP_TRANS_P0_3400,
+			   pattern ? BIT(pattern - 1) << 12 : 0,
+			   PATTERN1_EN_DP_TRANS_P0_MASK |
+			   PATTERN2_EN_DP_TRANS_P0_MASK |
+			   PATTERN3_EN_DP_TRANS_P0_MASK |
+			   PATTERN4_EN_DP_TRANS_P0_MASK);
+}
+
+static void mtk_dp_set_enhanced_frame_mode(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3000,
+			   ENHANCED_FRAME_EN_DP_ENC0_P0,
+			   ENHANCED_FRAME_EN_DP_ENC0_P0);
+}
+
+static void mtk_dp_training_set_scramble(struct mtk_dp *mtk_dp, bool enable)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TRANS_P0_3404,
+			   enable ? DP_SCR_EN_DP_TRANS_P0_MASK : 0,
+			   DP_SCR_EN_DP_TRANS_P0_MASK);
+}
+
+static void mtk_dp_video_mute(struct mtk_dp *mtk_dp, bool enable)
+{
+	struct arm_smccc_res res;
+	u32 val = VIDEO_MUTE_SEL_DP_ENC0_P0 |
+		  (enable ? VIDEO_MUTE_SW_DP_ENC0_P0 : 0);
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3000,
+			   val,
+			   VIDEO_MUTE_SEL_DP_ENC0_P0 |
+			   VIDEO_MUTE_SW_DP_ENC0_P0);
+
+	arm_smccc_smc(MTK_DP_SIP_CONTROL_AARCH32,
+		      mtk_dp->data->smc_cmd, enable,
+		      0, 0, 0, 0, 0, &res);
+
+	dev_dbg(mtk_dp->dev, "smc cmd: 0x%x, p1: %s, ret: 0x%lx-0x%lx\n",
+		mtk_dp->data->smc_cmd, enable ? "enable" : "disable", res.a0, res.a1);
+}
+
+static void mtk_dp_audio_mute(struct mtk_dp *mtk_dp, bool mute)
+{
+	u32 val[3];
+
+	if (mute) {
+		val[0] = VBID_AUDIO_MUTE_FLAG_SW_DP_ENC0_P0 |
+			 VBID_AUDIO_MUTE_FLAG_SEL_DP_ENC0_P0;
+		val[1] = 0;
+		val[2] = 0;
+	} else {
+		val[0] = 0;
+		val[1] = AU_EN_DP_ENC0_P0;
+		/* Send one every two frames */
+		val[2] = 0x0F;
+	}
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3030,
+			   val[0],
+			   VBID_AUDIO_MUTE_FLAG_SW_DP_ENC0_P0 |
+			   VBID_AUDIO_MUTE_FLAG_SEL_DP_ENC0_P0);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3088,
+			   val[1], AU_EN_DP_ENC0_P0);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_30A4,
+			   val[2], AU_TS_CFG_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_power_enable(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_RESET_AND_PROBE,
+			   0, SW_RST_B_PHYD);
+
+	/* Wait for power enable */
+	usleep_range(10, 200);
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_RESET_AND_PROBE,
+			   SW_RST_B_PHYD, SW_RST_B_PHYD);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+			   DP_PWR_STATE_BANDGAP_TPLL, DP_PWR_STATE_MASK);
+	mtk_dp_write(mtk_dp, MTK_DP_1040,
+		     RG_DPAUX_RX_VALID_DEGLITCH_EN | RG_XTP_GLB_CKDET_EN |
+		     RG_DPAUX_RX_EN);
+	mtk_dp_update_bits(mtk_dp, MTK_DP_0034, 0, DA_CKM_CKTX0_EN_FORCE_EN);
+}
+
+static void mtk_dp_power_disable(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_write(mtk_dp, MTK_DP_TOP_PWR_STATE, 0);
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_0034,
+			   DA_CKM_CKTX0_EN_FORCE_EN, DA_CKM_CKTX0_EN_FORCE_EN);
+
+	/* Disable RX */
+	mtk_dp_write(mtk_dp, MTK_DP_1040, 0);
+	mtk_dp_write(mtk_dp, MTK_DP_TOP_MEM_PD,
+		     0x550 | FUSE_SEL | MEM_ISO_EN);
+}
+
+static void mtk_dp_initialize_priv_data(struct mtk_dp *mtk_dp)
+{
+	mtk_dp->train_info.link_rate = DP_LINK_BW_5_4;
+	mtk_dp->train_info.lane_count = mtk_dp->max_lanes;
+	mtk_dp->train_info.cable_plugged_in = false;
+
+	mtk_dp->info.format = DP_PIXELFORMAT_RGB;
+	memset(&mtk_dp->info.vm, 0, sizeof(struct videomode));
+	mtk_dp->audio_enable = false;
+}
+
+static void mtk_dp_sdp_set_down_cnt_init(struct mtk_dp *mtk_dp,
+					 u32 sram_read_start)
+{
+	u32 sdp_down_cnt_init = 0;
+	struct drm_display_mode mode;
+	struct videomode *vm = &mtk_dp->info.vm;
+
+	drm_display_mode_from_videomode(vm, &mode);
+
+	if (mode.clock > 0)
+		sdp_down_cnt_init = sram_read_start *
+				    mtk_dp->train_info.link_rate * 2700 * 8 /
+				    (mode.clock * 4);
+
+	switch (mtk_dp->train_info.lane_count) {
+	case 1:
+		sdp_down_cnt_init = max_t(u32, sdp_down_cnt_init, 0x1A);
+		break;
+	case 2:
+		/* case for LowResolution && High Audio Sample Rate */
+		sdp_down_cnt_init = max_t(u32, sdp_down_cnt_init, 0x10);
+		sdp_down_cnt_init += mode.vtotal <= 525 ? 4 : 0;
+		break;
+	case 4:
+	default:
+		sdp_down_cnt_init = max_t(u32, sdp_down_cnt_init, 6);
+		break;
+	}
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC0_P0_3040,
+			   sdp_down_cnt_init,
+			   SDP_DOWN_CNT_INIT_DP_ENC0_P0_MASK);
+}
+
+static void mtk_dp_sdp_set_down_cnt_init_in_hblank(struct mtk_dp *mtk_dp)
+{
+	int pix_clk_mhz;
+	u32 dc_offset;
+	u32 spd_down_cnt_init = 0;
+	struct drm_display_mode mode;
+	struct videomode *vm = &mtk_dp->info.vm;
+
+	drm_display_mode_from_videomode(vm, &mode);
+
+	pix_clk_mhz = mtk_dp->info.format == DP_PIXELFORMAT_YUV420 ?
+		      mode.clock / 2000 : mode.clock / 1000;
+
+	switch (mtk_dp->train_info.lane_count) {
+	case 1:
+		spd_down_cnt_init = 0x20;
+		break;
+	case 2:
+		dc_offset = (mode.vtotal <= 525) ? 0x14 : 0x00;
+		spd_down_cnt_init = 0x18 + dc_offset;
+		break;
+	case 4:
+	default:
+		dc_offset = (mode.vtotal <= 525) ? 0x08 : 0x00;
+		if (pix_clk_mhz > mtk_dp->train_info.link_rate * 27)
+			spd_down_cnt_init = 0x8;
+		else
+			spd_down_cnt_init = 0x10 + dc_offset;
+		break;
+	}
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3364, spd_down_cnt_init,
+			   SDP_DOWN_CNT_INIT_IN_HBLANK_DP_ENC1_P0_MASK);
+}
+
+static void mtk_dp_setup_tu(struct mtk_dp *mtk_dp)
+{
+	u32 sram_read_start = min_t(u32, MTK_DP_TBC_BUF_READ_START_ADDR,
+				    mtk_dp->info.vm.hactive /
+				    mtk_dp->train_info.lane_count /
+				    MTK_DP_4P1T / MTK_DP_HDE /
+				    MTK_DP_PIX_PER_ADDR);
+	mtk_dp_set_sram_read_start(mtk_dp, sram_read_start);
+	mtk_dp_setup_encoder(mtk_dp);
+	mtk_dp_sdp_set_down_cnt_init_in_hblank(mtk_dp);
+	mtk_dp_sdp_set_down_cnt_init(mtk_dp, sram_read_start);
+}
+
+static void mtk_dp_set_tx_out(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_setup_tu(mtk_dp);
+}
+
+static void mtk_dp_train_update_swing_pre(struct mtk_dp *mtk_dp, int lanes,
+					  u8 dpcd_adjust_req[2])
+{
+	int lane;
+
+	for (lane = 0; lane < lanes; ++lane) {
+		u8 val;
+		u8 swing;
+		u8 preemphasis;
+		int index = lane / 2;
+		int shift = lane % 2 ? DP_ADJUST_VOLTAGE_SWING_LANE1_SHIFT : 0;
+
+		swing = (dpcd_adjust_req[index] >> shift) &
+			DP_ADJUST_VOLTAGE_SWING_LANE0_MASK;
+		preemphasis = ((dpcd_adjust_req[index] >> shift) &
+			       DP_ADJUST_PRE_EMPHASIS_LANE0_MASK) >>
+			      DP_ADJUST_PRE_EMPHASIS_LANE0_SHIFT;
+		val = swing << DP_TRAIN_VOLTAGE_SWING_SHIFT |
+		      preemphasis << DP_TRAIN_PRE_EMPHASIS_SHIFT;
+
+		if (swing == DP_TRAIN_VOLTAGE_SWING_LEVEL_3)
+			val |= DP_TRAIN_MAX_SWING_REACHED;
+		if (preemphasis == 3)
+			val |= DP_TRAIN_MAX_PRE_EMPHASIS_REACHED;
+
+		mtk_dp_set_swing_pre_emphasis(mtk_dp, lane, swing, preemphasis);
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_TRAINING_LANE0_SET + lane,
+				   val);
+	}
+}
+
+static void mtk_dp_pattern(struct mtk_dp *mtk_dp, bool is_tps1)
+{
+	int pattern;
+	unsigned int aux_offset;
+
+	if (is_tps1) {
+		pattern = 1;
+		aux_offset = DP_LINK_SCRAMBLING_DISABLE | DP_TRAINING_PATTERN_1;
+	} else {
+		aux_offset = mtk_dp->train_info.channel_eq_pattern;
+
+		switch (mtk_dp->train_info.channel_eq_pattern) {
+		case DP_TRAINING_PATTERN_4:
+			pattern = 4;
+			break;
+		case DP_TRAINING_PATTERN_3:
+			pattern = 3;
+			aux_offset |= DP_LINK_SCRAMBLING_DISABLE;
+			break;
+		case DP_TRAINING_PATTERN_2:
+		default:
+			pattern = 2;
+			aux_offset |= DP_LINK_SCRAMBLING_DISABLE;
+			break;
+		}
+	}
+
+	mtk_dp_train_set_pattern(mtk_dp, pattern);
+	drm_dp_dpcd_writeb(&mtk_dp->aux, DP_TRAINING_PATTERN_SET, aux_offset);
+}
+
+static int mtk_dp_train_setting(struct mtk_dp *mtk_dp, u8 target_link_rate,
+				u8 target_lane_count)
+{
+	int ret;
+
+	drm_dp_dpcd_writeb(&mtk_dp->aux, DP_LINK_BW_SET, target_link_rate);
+	drm_dp_dpcd_writeb(&mtk_dp->aux, DP_LANE_COUNT_SET,
+			   target_lane_count | DP_LANE_COUNT_ENHANCED_FRAME_EN);
+
+	if (mtk_dp->train_info.sink_ssc)
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_DOWNSPREAD_CTRL,
+				   DP_SPREAD_AMP_0_5);
+
+	mtk_dp_set_lanes(mtk_dp, target_lane_count / 2);
+	ret = mtk_dp_phy_configure(mtk_dp, target_link_rate, target_lane_count);
+	if (ret)
+		return ret;
+
+	dev_dbg(mtk_dp->dev,
+		"Link train target_link_rate = 0x%x, target_lane_count = 0x%x\n",
+		target_link_rate, target_lane_count);
+
+	return 0;
+}
+
+static int mtk_dp_train_cr(struct mtk_dp *mtk_dp, u8 target_lane_count)
+{
+	u8 lane_adjust[2] = {};
+	u8 link_status[DP_LINK_STATUS_SIZE] = {};
+	u8 prev_lane_adjust = 0xff;
+	int train_retries = 0;
+	int voltage_retries = 0;
+
+	mtk_dp_pattern(mtk_dp, true);
+
+	/* In DP spec 1.4, the retry count of CR is defined as 10. */
+	do {
+		train_retries++;
+		if (!mtk_dp->train_info.cable_plugged_in) {
+			mtk_dp_train_set_pattern(mtk_dp, 0);
+			return -ENODEV;
+		}
+
+		drm_dp_dpcd_read(&mtk_dp->aux, DP_ADJUST_REQUEST_LANE0_1,
+				 lane_adjust, sizeof(lane_adjust));
+		mtk_dp_train_update_swing_pre(mtk_dp, target_lane_count,
+					      lane_adjust);
+
+		drm_dp_link_train_clock_recovery_delay(&mtk_dp->aux,
+						       mtk_dp->rx_cap);
+
+		/* check link status from sink device */
+		drm_dp_dpcd_read_link_status(&mtk_dp->aux, link_status);
+		if (drm_dp_clock_recovery_ok(link_status,
+					     target_lane_count)) {
+			dev_dbg(mtk_dp->dev, "Link train CR pass\n");
+			return 0;
+		}
+
+		/*
+		 * In DP spec 1.4, if current voltage level is the same
+		 * with previous voltage level, we need to retry 5 times.
+		 */
+		if (prev_lane_adjust == link_status[4]) {
+			voltage_retries++;
+			/*
+			 * Condition of CR fail:
+			 * 1. Failed to pass CR using the same voltage
+			 *    level over five times.
+			 * 2. Failed to pass CR when the current voltage
+			 *    level is the same with previous voltage
+			 *    level and reach max voltage level (3).
+			 */
+			if (voltage_retries > MTK_DP_TRAIN_VOLTAGE_LEVEL_RETRY ||
+			    (prev_lane_adjust & DP_ADJUST_VOLTAGE_SWING_LANE0_MASK) == 3) {
+				dev_dbg(mtk_dp->dev, "Link train CR fail\n");
+				break;
+			}
+		} else {
+			/*
+			 * If the voltage level is changed, we need to
+			 * re-calculate this retry count.
+			 */
+			voltage_retries = 0;
+		}
+		prev_lane_adjust = link_status[4];
+	} while (train_retries < MTK_DP_TRAIN_DOWNSCALE_RETRY);
+
+	/* Failed to train CR, and disable pattern. */
+	drm_dp_dpcd_writeb(&mtk_dp->aux, DP_TRAINING_PATTERN_SET,
+			   DP_TRAINING_PATTERN_DISABLE);
+	mtk_dp_train_set_pattern(mtk_dp, 0);
+
+	return -ETIMEDOUT;
+}
+
+static int mtk_dp_train_eq(struct mtk_dp *mtk_dp, u8 target_lane_count)
+{
+	u8 lane_adjust[2] = {};
+	u8 link_status[DP_LINK_STATUS_SIZE] = {};
+	int train_retries = 0;
+
+	mtk_dp_pattern(mtk_dp, false);
+
+	do {
+		train_retries++;
+		if (!mtk_dp->train_info.cable_plugged_in) {
+			mtk_dp_train_set_pattern(mtk_dp, 0);
+			return -ENODEV;
+		}
+
+		drm_dp_dpcd_read(&mtk_dp->aux, DP_ADJUST_REQUEST_LANE0_1,
+				 lane_adjust, sizeof(lane_adjust));
+		mtk_dp_train_update_swing_pre(mtk_dp, target_lane_count,
+					      lane_adjust);
+
+		drm_dp_link_train_channel_eq_delay(&mtk_dp->aux,
+						   mtk_dp->rx_cap);
+
+		/* check link status from sink device */
+		drm_dp_dpcd_read_link_status(&mtk_dp->aux, link_status);
+		if (drm_dp_channel_eq_ok(link_status, target_lane_count)) {
+			dev_dbg(mtk_dp->dev, "Link train EQ pass\n");
+
+			/* Training done, and disable pattern. */
+			drm_dp_dpcd_writeb(&mtk_dp->aux, DP_TRAINING_PATTERN_SET,
+					   DP_TRAINING_PATTERN_DISABLE);
+			mtk_dp_train_set_pattern(mtk_dp, 0);
+			return 0;
+		}
+		dev_dbg(mtk_dp->dev, "Link train EQ fail\n");
+	} while (train_retries < MTK_DP_TRAIN_DOWNSCALE_RETRY);
+
+	/* Failed to train EQ, and disable pattern. */
+	drm_dp_dpcd_writeb(&mtk_dp->aux, DP_TRAINING_PATTERN_SET,
+			   DP_TRAINING_PATTERN_DISABLE);
+	mtk_dp_train_set_pattern(mtk_dp, 0);
+
+	return -ETIMEDOUT;
+}
+
+static int mtk_dp_parse_capabilities(struct mtk_dp *mtk_dp)
+{
+	u8 val;
+	ssize_t ret;
+
+	ret = drm_dp_read_dpcd_caps(&mtk_dp->aux, mtk_dp->rx_cap);
+	if (ret < 0)
+		return ret;
+
+	if (drm_dp_tps4_supported(mtk_dp->rx_cap))
+		mtk_dp->train_info.channel_eq_pattern = DP_TRAINING_PATTERN_4;
+	else if (drm_dp_tps3_supported(mtk_dp->rx_cap))
+		mtk_dp->train_info.channel_eq_pattern = DP_TRAINING_PATTERN_3;
+	else
+		mtk_dp->train_info.channel_eq_pattern = DP_TRAINING_PATTERN_2;
+
+	mtk_dp->train_info.sink_ssc = drm_dp_max_downspread(mtk_dp->rx_cap);
+
+	ret = drm_dp_dpcd_readb(&mtk_dp->aux, DP_MSTM_CAP, &val);
+	if (ret < 1) {
+		drm_err(mtk_dp->drm_dev, "Read mstm cap failed\n");
+		return ret == 0 ? -EIO : ret;
+	}
+
+	if (val & DP_MST_CAP) {
+		/* Clear DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0 */
+		ret = drm_dp_dpcd_readb(&mtk_dp->aux,
+					DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0,
+					&val);
+		if (ret < 1) {
+			drm_err(mtk_dp->drm_dev, "Read irq vector failed\n");
+			return ret == 0 ? -EIO : ret;
+		}
+
+		if (val) {
+			ret = drm_dp_dpcd_writeb(&mtk_dp->aux,
+						 DP_DEVICE_SERVICE_IRQ_VECTOR_ESI0,
+						 val);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	return 0;
+}
+
+static bool mtk_dp_edid_parse_audio_capabilities(struct mtk_dp *mtk_dp,
+						 struct mtk_dp_audio_cfg *cfg)
+{
+	if (!mtk_dp->data->audio_supported)
+		return false;
+
+	if (mtk_dp->info.audio_cur_cfg.sad_count <= 0) {
+		drm_info(mtk_dp->drm_dev, "The SADs is NULL\n");
+		return false;
+	}
+
+	return true;
+}
+
+static void mtk_dp_train_change_mode(struct mtk_dp *mtk_dp)
+{
+	phy_reset(mtk_dp->phy);
+	mtk_dp_reset_swing_pre_emphasis(mtk_dp);
+}
+
+static int mtk_dp_training(struct mtk_dp *mtk_dp)
+{
+	int ret;
+	u8 lane_count, link_rate, train_limit, max_link_rate;
+
+	link_rate = min_t(u8, mtk_dp->max_linkrate,
+			  mtk_dp->rx_cap[DP_MAX_LINK_RATE]);
+	max_link_rate = link_rate;
+	lane_count = min_t(u8, mtk_dp->max_lanes,
+			   drm_dp_max_lane_count(mtk_dp->rx_cap));
+
+	/*
+	 * TPS are generated by the hardware pattern generator. From the
+	 * hardware setting we need to disable this scramble setting before
+	 * use the TPS pattern generator.
+	 */
+	mtk_dp_training_set_scramble(mtk_dp, false);
+
+	for (train_limit = 6; train_limit > 0; train_limit--) {
+		mtk_dp_train_change_mode(mtk_dp);
+
+		ret = mtk_dp_train_setting(mtk_dp, link_rate, lane_count);
+		if (ret)
+			return ret;
+
+		ret = mtk_dp_train_cr(mtk_dp, lane_count);
+		if (ret == -ENODEV) {
+			return ret;
+		} else if (ret) {
+			/* reduce link rate */
+			switch (link_rate) {
+			case DP_LINK_BW_1_62:
+				lane_count = lane_count / 2;
+				link_rate = max_link_rate;
+				if (lane_count == 0)
+					return -EIO;
+				break;
+			case DP_LINK_BW_2_7:
+				link_rate = DP_LINK_BW_1_62;
+				break;
+			case DP_LINK_BW_5_4:
+				link_rate = DP_LINK_BW_2_7;
+				break;
+			case DP_LINK_BW_8_1:
+				link_rate = DP_LINK_BW_5_4;
+				break;
+			default:
+				return -EINVAL;
+			};
+			continue;
+		}
+
+		ret = mtk_dp_train_eq(mtk_dp, lane_count);
+		if (ret == -ENODEV) {
+			return ret;
+		} else if (ret) {
+			/* reduce lane count */
+			if (lane_count == 0)
+				return -EIO;
+			lane_count /= 2;
+			continue;
+		}
+
+		/* if we can run to this, training is done. */
+		break;
+	}
+
+	if (train_limit == 0)
+		return -ETIMEDOUT;
+
+	mtk_dp->train_info.link_rate = link_rate;
+	mtk_dp->train_info.lane_count = lane_count;
+
+	/*
+	 * After training done, we need to output normal stream instead of TPS,
+	 * so we need to enable scramble.
+	 */
+	mtk_dp_training_set_scramble(mtk_dp, true);
+	mtk_dp_set_enhanced_frame_mode(mtk_dp);
+
+	return 0;
+}
+
+static void mtk_dp_video_enable(struct mtk_dp *mtk_dp, bool enable)
+{
+	/* the mute sequence is different between enable and disable */
+	if (enable) {
+		mtk_dp_msa_bypass_enable(mtk_dp, false);
+		mtk_dp_pg_enable(mtk_dp, false);
+		mtk_dp_set_tx_out(mtk_dp);
+		mtk_dp_video_mute(mtk_dp, false);
+	} else {
+		mtk_dp_video_mute(mtk_dp, true);
+		mtk_dp_pg_enable(mtk_dp, true);
+		mtk_dp_msa_bypass_enable(mtk_dp, true);
+	}
+}
+
+static void mtk_dp_audio_sdp_setup(struct mtk_dp *mtk_dp,
+				   struct mtk_dp_audio_cfg *cfg)
+{
+	struct dp_sdp sdp;
+	struct hdmi_audio_infoframe frame;
+
+	hdmi_audio_infoframe_init(&frame);
+	frame.coding_type = HDMI_AUDIO_CODING_TYPE_PCM;
+	frame.channels = cfg->channels;
+	frame.sample_frequency = cfg->sample_rate;
+
+	switch (cfg->word_length_bits) {
+	case 16:
+		frame.sample_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+		break;
+	case 20:
+		frame.sample_size = HDMI_AUDIO_SAMPLE_SIZE_20;
+		break;
+	case 24:
+	default:
+		frame.sample_size = HDMI_AUDIO_SAMPLE_SIZE_24;
+		break;
+	}
+
+	hdmi_audio_infoframe_pack_for_dp(&frame, &sdp, MTK_DP_VERSION);
+
+	mtk_dp_audio_sdp_asp_set_channels(mtk_dp, cfg->channels);
+	mtk_dp_setup_sdp_aui(mtk_dp, &sdp);
+}
+
+static void mtk_dp_audio_setup(struct mtk_dp *mtk_dp,
+			       struct mtk_dp_audio_cfg *cfg)
+{
+	mtk_dp_audio_sdp_setup(mtk_dp, cfg);
+	mtk_dp_audio_channel_status_set(mtk_dp, cfg);
+
+	mtk_dp_audio_setup_channels(mtk_dp, cfg);
+	mtk_dp_audio_set_divider(mtk_dp);
+}
+
+static int mtk_dp_video_config(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_config_mn_mode(mtk_dp);
+	mtk_dp_set_msa(mtk_dp);
+	mtk_dp_set_color_depth(mtk_dp);
+	return mtk_dp_set_color_format(mtk_dp, mtk_dp->info.format);
+}
+
+static void mtk_dp_init_port(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_set_idle_pattern(mtk_dp, true);
+	mtk_dp_initialize_priv_data(mtk_dp);
+
+	mtk_dp_initialize_settings(mtk_dp);
+	mtk_dp_initialize_aux_settings(mtk_dp);
+	mtk_dp_initialize_digital_settings(mtk_dp);
+
+	mtk_dp_update_bits(mtk_dp, MTK_DP_AUX_P0_3690,
+			   RX_REPLY_COMPLETE_MODE_AUX_TX_P0,
+			   RX_REPLY_COMPLETE_MODE_AUX_TX_P0);
+	mtk_dp_initialize_hpd_detect_settings(mtk_dp);
+
+	mtk_dp_digital_sw_reset(mtk_dp);
+}
+
+static irqreturn_t mtk_dp_hpd_event_thread(int hpd, void *dev)
+{
+	struct mtk_dp *mtk_dp = dev;
+	unsigned long flags;
+	u32 status;
+
+	if (mtk_dp->need_debounce && mtk_dp->train_info.cable_plugged_in)
+		msleep(100);
+
+	spin_lock_irqsave(&mtk_dp->irq_thread_lock, flags);
+	status = mtk_dp->irq_thread_handle;
+	mtk_dp->irq_thread_handle = 0;
+	spin_unlock_irqrestore(&mtk_dp->irq_thread_lock, flags);
+
+	if (status & MTK_DP_THREAD_CABLE_STATE_CHG) {
+		if (mtk_dp->bridge.dev)
+			drm_helper_hpd_irq_event(mtk_dp->bridge.dev);
+
+		if (!mtk_dp->train_info.cable_plugged_in) {
+			mtk_dp_disable_sdp_aui(mtk_dp);
+			memset(&mtk_dp->info.audio_cur_cfg, 0,
+			       sizeof(mtk_dp->info.audio_cur_cfg));
+
+			mtk_dp->need_debounce = false;
+			mod_timer(&mtk_dp->debounce_timer,
+				  jiffies + msecs_to_jiffies(100) - 1);
+		}
+	}
+
+	if (status & MTK_DP_THREAD_HPD_EVENT)
+		dev_dbg(mtk_dp->dev, "Receive IRQ from sink devices\n");
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t mtk_dp_hpd_event(int hpd, void *dev)
+{
+	struct mtk_dp *mtk_dp = dev;
+	bool cable_sta_chg = false;
+	unsigned long flags;
+	u32 irq_status = mtk_dp_swirq_get_clear(mtk_dp) |
+			 mtk_dp_hwirq_get_clear(mtk_dp);
+
+	if (!irq_status)
+		return IRQ_HANDLED;
+
+	spin_lock_irqsave(&mtk_dp->irq_thread_lock, flags);
+
+	if (irq_status & MTK_DP_HPD_INTERRUPT)
+		mtk_dp->irq_thread_handle |= MTK_DP_THREAD_HPD_EVENT;
+
+	/* Cable state is changed. */
+	if (irq_status != MTK_DP_HPD_INTERRUPT) {
+		mtk_dp->irq_thread_handle |= MTK_DP_THREAD_CABLE_STATE_CHG;
+		cable_sta_chg = true;
+	}
+
+	spin_unlock_irqrestore(&mtk_dp->irq_thread_lock, flags);
+
+	if (cable_sta_chg) {
+		if (!!(mtk_dp_read(mtk_dp, MTK_DP_TRANS_P0_3414) &
+		       HPD_DB_DP_TRANS_P0_MASK))
+			mtk_dp->train_info.cable_plugged_in = true;
+		else
+			mtk_dp->train_info.cable_plugged_in = false;
+	}
+
+	return IRQ_WAKE_THREAD;
+}
+
+static int mtk_dp_dt_parse(struct mtk_dp *mtk_dp,
+			   struct platform_device *pdev)
+{
+	struct device_node *endpoint;
+	struct device *dev = &pdev->dev;
+	int ret;
+	void __iomem *base;
+	u32 linkrate;
+	int len;
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	mtk_dp->regs = devm_regmap_init_mmio(dev, base, &mtk_dp_regmap_config);
+	if (IS_ERR(mtk_dp->regs))
+		return PTR_ERR(mtk_dp->regs);
+
+	endpoint = of_graph_get_endpoint_by_regs(pdev->dev.of_node, 1, -1);
+	len = of_property_count_elems_of_size(endpoint,
+					      "data-lanes", sizeof(u32));
+	if (len < 0 || len > 4 || len == 3) {
+		dev_err(dev, "invalid data lane size: %d\n", len);
+		return -EINVAL;
+	}
+
+	mtk_dp->max_lanes = len;
+
+	ret = device_property_read_u32(dev, "max-linkrate-mhz", &linkrate);
+	if (ret) {
+		dev_err(dev, "failed to read max linkrate: %d\n", ret);
+		return ret;
+	}
+
+	mtk_dp->max_linkrate = drm_dp_link_rate_to_bw_code(linkrate * 100);
+
+	return 0;
+}
+
+static void mtk_dp_update_plugged_status(struct mtk_dp *mtk_dp)
+{
+	mutex_lock(&mtk_dp->update_plugged_status_lock);
+	if (mtk_dp->plugged_cb && mtk_dp->codec_dev)
+		mtk_dp->plugged_cb(mtk_dp->codec_dev,
+				   mtk_dp->enabled &
+				   mtk_dp->info.audio_cur_cfg.detect_monitor);
+	mutex_unlock(&mtk_dp->update_plugged_status_lock);
+}
+
+static enum drm_connector_status mtk_dp_bdg_detect(struct drm_bridge *bridge)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+	enum drm_connector_status ret = connector_status_disconnected;
+	bool enabled = mtk_dp->enabled;
+	u8 sink_count = 0;
+
+	if (!mtk_dp->train_info.cable_plugged_in)
+		return ret;
+
+	if (!enabled) {
+		/* power on aux */
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+				   DP_PWR_STATE_BANDGAP_TPLL_LANE,
+				   DP_PWR_STATE_MASK);
+
+		/* power on panel */
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
+		usleep_range(2000, 5000);
+	}
+	/*
+	 * Some dongles still source HPD when they do not connect to any
+	 * sink device. To avoid this, we need to read the sink count
+	 * to make sure we do connect to sink devices. After this detect
+	 * function, we just need to check the HPD connection to check
+	 * whether we connect to a sink device.
+	 */
+	drm_dp_dpcd_readb(&mtk_dp->aux, DP_SINK_COUNT, &sink_count);
+	if (DP_GET_SINK_COUNT(sink_count))
+		ret = connector_status_connected;
+
+	if (!enabled) {
+		/* power off panel */
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3);
+		usleep_range(2000, 3000);
+
+		/* power off aux */
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+				   DP_PWR_STATE_BANDGAP_TPLL,
+				   DP_PWR_STATE_MASK);
+	}
+
+	return ret;
+}
+
+static struct edid *mtk_dp_get_edid(struct drm_bridge *bridge,
+				    struct drm_connector *connector)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+	bool enabled = mtk_dp->enabled;
+	struct edid *new_edid = NULL;
+	struct mtk_dp_audio_cfg *audio_caps = &mtk_dp->info.audio_cur_cfg;
+
+	if (!enabled) {
+		drm_bridge_chain_pre_enable(bridge);
+
+		/* power on aux */
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+				   DP_PWR_STATE_BANDGAP_TPLL_LANE,
+				   DP_PWR_STATE_MASK);
+
+		/* power on panel */
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
+		usleep_range(2000, 5000);
+	}
+
+	new_edid = drm_get_edid(connector, &mtk_dp->aux.ddc);
+
+	/*
+	 * Parse capability here to let atomic_get_input_bus_fmts and
+	 * mode_valid use the capability to calculate sink bitrates.
+	 */
+	if (mtk_dp_parse_capabilities(mtk_dp)) {
+		drm_err(mtk_dp->drm_dev, "Can't parse capabilities\n");
+		kfree(new_edid);
+		new_edid = NULL;
+	}
+
+	if (new_edid) {
+		struct cea_sad *sads;
+
+		audio_caps->sad_count = drm_edid_to_sad(new_edid, &sads);
+		kfree(sads);
+
+		audio_caps->detect_monitor = drm_detect_monitor_audio(new_edid);
+	}
+
+	if (!enabled) {
+		/* power off panel */
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3);
+		usleep_range(2000, 3000);
+
+		/* power off aux */
+		mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+				   DP_PWR_STATE_BANDGAP_TPLL,
+				   DP_PWR_STATE_MASK);
+
+		drm_bridge_chain_post_disable(bridge);
+	}
+
+	return new_edid;
+}
+
+static ssize_t mtk_dp_aux_transfer(struct drm_dp_aux *mtk_aux,
+				   struct drm_dp_aux_msg *msg)
+{
+	struct mtk_dp *mtk_dp;
+	bool is_read;
+	u8 request;
+	size_t accessed_bytes = 0;
+	int ret;
+
+	mtk_dp = container_of(mtk_aux, struct mtk_dp, aux);
+
+	if (!mtk_dp->train_info.cable_plugged_in) {
+		ret = -EAGAIN;
+		goto err;
+	}
+
+	switch (msg->request) {
+	case DP_AUX_I2C_MOT:
+	case DP_AUX_I2C_WRITE:
+	case DP_AUX_NATIVE_WRITE:
+	case DP_AUX_I2C_WRITE_STATUS_UPDATE:
+	case DP_AUX_I2C_WRITE_STATUS_UPDATE | DP_AUX_I2C_MOT:
+		request = msg->request & ~DP_AUX_I2C_WRITE_STATUS_UPDATE;
+		is_read = false;
+		break;
+	case DP_AUX_I2C_READ:
+	case DP_AUX_NATIVE_READ:
+	case DP_AUX_I2C_READ | DP_AUX_I2C_MOT:
+		request = msg->request;
+		is_read = true;
+		break;
+	default:
+		dev_err(mtk_dp->dev, "invalid aux cmd = %d\n",
+			msg->request);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	do {
+		size_t to_access = min_t(size_t, DP_AUX_MAX_PAYLOAD_BYTES,
+					 msg->size - accessed_bytes);
+
+		ret = mtk_dp_aux_do_transfer(mtk_dp, is_read, request,
+					     msg->address + accessed_bytes,
+					     msg->buffer + accessed_bytes,
+					     to_access, &msg->reply);
+
+		if (ret) {
+			dev_info(mtk_dp->dev,
+				 "Failed to do AUX transfer: %d\n", ret);
+			goto err;
+		}
+		accessed_bytes += to_access;
+	} while (accessed_bytes < msg->size);
+
+	return msg->size;
+err:
+	msg->reply = DP_AUX_NATIVE_REPLY_NACK | DP_AUX_I2C_REPLY_NACK;
+	return ret;
+}
+
+static int mtk_dp_poweron(struct mtk_dp *mtk_dp)
+{
+	int ret;
+
+	ret = phy_init(mtk_dp->phy);
+	if (ret) {
+		dev_err(mtk_dp->dev, "Failed to initialize phy: %d\n", ret);
+		return ret;
+	}
+
+	mtk_dp_init_port(mtk_dp);
+	mtk_dp_power_enable(mtk_dp);
+
+	return 0;
+}
+
+static void mtk_dp_poweroff(struct mtk_dp *mtk_dp)
+{
+	mtk_dp_power_disable(mtk_dp);
+	phy_exit(mtk_dp->phy);
+}
+
+static int mtk_dp_bridge_attach(struct drm_bridge *bridge,
+				enum drm_bridge_attach_flags flags)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+	int ret;
+
+	if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
+		dev_err(mtk_dp->dev, "Driver does not provide a connector!");
+		return -EINVAL;
+	}
+
+	mtk_dp->aux.drm_dev = bridge->dev;
+	ret = drm_dp_aux_register(&mtk_dp->aux);
+	if (ret) {
+		dev_err(mtk_dp->dev,
+			"failed to register DP AUX channel: %d\n", ret);
+		return ret;
+	}
+
+	ret = mtk_dp_poweron(mtk_dp);
+	if (ret)
+		goto err_aux_register;
+
+	if (mtk_dp->next_bridge) {
+		ret = drm_bridge_attach(bridge->encoder, mtk_dp->next_bridge,
+					&mtk_dp->bridge, flags);
+		if (ret) {
+			drm_warn(mtk_dp->drm_dev,
+				 "Failed to attach external bridge: %d\n", ret);
+			goto err_bridge_attach;
+		}
+	}
+
+	mtk_dp->drm_dev = bridge->dev;
+
+	mtk_dp_hwirq_enable(mtk_dp, true);
+
+	return 0;
+
+err_bridge_attach:
+	mtk_dp_poweroff(mtk_dp);
+err_aux_register:
+	drm_dp_aux_unregister(&mtk_dp->aux);
+	return ret;
+}
+
+static void mtk_dp_bridge_detach(struct drm_bridge *bridge)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+
+	mtk_dp_hwirq_enable(mtk_dp, false);
+	mtk_dp->drm_dev = NULL;
+	mtk_dp_poweroff(mtk_dp);
+	drm_dp_aux_unregister(&mtk_dp->aux);
+}
+
+static void mtk_dp_bridge_atomic_enable(struct drm_bridge *bridge,
+					struct drm_bridge_state *old_state)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+	int ret;
+
+	mtk_dp->conn = drm_atomic_get_new_connector_for_encoder(old_state->base.state,
+								bridge->encoder);
+	if (!mtk_dp->conn) {
+		drm_err(mtk_dp->drm_dev,
+			"Can't enable bridge as connector is missing\n");
+		return;
+	}
+
+	/* power on aux */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+			   DP_PWR_STATE_BANDGAP_TPLL_LANE,
+			   DP_PWR_STATE_MASK);
+
+	if (mtk_dp->train_info.cable_plugged_in) {
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D0);
+		usleep_range(2000, 5000);
+	}
+
+	/* Training */
+	ret = mtk_dp_training(mtk_dp);
+	if (ret) {
+		drm_err(mtk_dp->drm_dev, "Training failed, %d\n", ret);
+		goto power_off_aux;
+	}
+
+	ret = mtk_dp_video_config(mtk_dp);
+	if (ret)
+		goto power_off_aux;
+
+	mtk_dp_video_enable(mtk_dp, true);
+
+	mtk_dp->audio_enable =
+		mtk_dp_edid_parse_audio_capabilities(mtk_dp,
+						     &mtk_dp->info.audio_cur_cfg);
+	if (mtk_dp->audio_enable) {
+		mtk_dp_audio_setup(mtk_dp, &mtk_dp->info.audio_cur_cfg);
+		mtk_dp_audio_mute(mtk_dp, false);
+	} else {
+		memset(&mtk_dp->info.audio_cur_cfg, 0,
+		       sizeof(mtk_dp->info.audio_cur_cfg));
+	}
+
+	mtk_dp->enabled = true;
+	mtk_dp_update_plugged_status(mtk_dp);
+
+	return;
+power_off_aux:
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+			   DP_PWR_STATE_BANDGAP_TPLL,
+			   DP_PWR_STATE_MASK);
+}
+
+static void mtk_dp_bridge_atomic_disable(struct drm_bridge *bridge,
+					 struct drm_bridge_state *old_state)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+
+	mtk_dp->enabled = false;
+	mtk_dp_update_plugged_status(mtk_dp);
+	mtk_dp_video_enable(mtk_dp, false);
+	mtk_dp_audio_mute(mtk_dp, true);
+
+	if (mtk_dp->train_info.cable_plugged_in) {
+		drm_dp_dpcd_writeb(&mtk_dp->aux, DP_SET_POWER, DP_SET_POWER_D3);
+		usleep_range(2000, 3000);
+	}
+
+	/* power off aux */
+	mtk_dp_update_bits(mtk_dp, MTK_DP_TOP_PWR_STATE,
+			   DP_PWR_STATE_BANDGAP_TPLL,
+			   DP_PWR_STATE_MASK);
+
+	/* Ensure the sink is muted */
+	msleep(20);
+}
+
+static enum drm_mode_status
+mtk_dp_bridge_mode_valid(struct drm_bridge *bridge,
+			 const struct drm_display_info *info,
+			 const struct drm_display_mode *mode)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+	u32 bpp = info->color_formats & DRM_COLOR_FORMAT_YCBCR422 ? 16 : 24;
+	u32 rate = min_t(u32, drm_dp_max_link_rate(mtk_dp->rx_cap) *
+			      drm_dp_max_lane_count(mtk_dp->rx_cap),
+			 drm_dp_bw_code_to_link_rate(mtk_dp->max_linkrate) *
+			 mtk_dp->max_lanes);
+
+	if (rate < mode->clock * bpp / 8)
+		return MODE_CLOCK_HIGH;
+
+	return MODE_OK;
+}
+
+static u32 *mtk_dp_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
+						     struct drm_bridge_state *bridge_state,
+						     struct drm_crtc_state *crtc_state,
+						     struct drm_connector_state *conn_state,
+						     unsigned int *num_output_fmts)
+{
+	u32 *output_fmts;
+
+	*num_output_fmts = 0;
+	output_fmts = kmalloc(sizeof(*output_fmts), GFP_KERNEL);
+	if (!output_fmts)
+		return NULL;
+	*num_output_fmts = 1;
+	output_fmts[0] = MEDIA_BUS_FMT_FIXED;
+	return output_fmts;
+}
+
+static const u32 mt8195_input_fmts[] = {
+	MEDIA_BUS_FMT_RGB888_1X24,
+	MEDIA_BUS_FMT_YUV8_1X24,
+	MEDIA_BUS_FMT_YUYV8_1X16,
+};
+
+static u32 *mtk_dp_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
+						    struct drm_bridge_state *bridge_state,
+						    struct drm_crtc_state *crtc_state,
+						    struct drm_connector_state *conn_state,
+						    u32 output_fmt,
+						    unsigned int *num_input_fmts)
+{
+	u32 *input_fmts;
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+	struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+	struct drm_display_info *display_info =
+		&conn_state->connector->display_info;
+	u32 rate = min_t(u32, drm_dp_max_link_rate(mtk_dp->rx_cap) *
+			      drm_dp_max_lane_count(mtk_dp->rx_cap),
+			 drm_dp_bw_code_to_link_rate(mtk_dp->max_linkrate) *
+			 mtk_dp->max_lanes);
+
+	*num_input_fmts = 0;
+
+	/*
+	 * If the linkrate is smaller than datarate of RGB888, larger than
+	 * datarate of YUV422 and sink device supports YUV422, we output YUV422
+	 * format. Use this condition, we can support more resolution.
+	 */
+	if ((rate < (mode->clock * 24 / 8)) &&
+	    (rate > (mode->clock * 16 / 8)) &&
+	    (display_info->color_formats & DRM_COLOR_FORMAT_YCBCR422)) {
+		input_fmts = kcalloc(1, sizeof(*input_fmts), GFP_KERNEL);
+		if (!input_fmts)
+			return NULL;
+		*num_input_fmts = 1;
+		input_fmts[0] = MEDIA_BUS_FMT_YUYV8_1X16;
+	} else {
+		input_fmts = kcalloc(ARRAY_SIZE(mt8195_input_fmts),
+				     sizeof(*input_fmts),
+				     GFP_KERNEL);
+		if (!input_fmts)
+			return NULL;
+
+		*num_input_fmts = ARRAY_SIZE(mt8195_input_fmts);
+		memcpy(input_fmts, mt8195_input_fmts, sizeof(mt8195_input_fmts));
+	}
+
+	return input_fmts;
+}
+
+static int mtk_dp_bridge_atomic_check(struct drm_bridge *bridge,
+				      struct drm_bridge_state *bridge_state,
+				      struct drm_crtc_state *crtc_state,
+				      struct drm_connector_state *conn_state)
+{
+	struct mtk_dp *mtk_dp = mtk_dp_from_bridge(bridge);
+	struct drm_crtc *crtc = conn_state->crtc;
+	unsigned int input_bus_format;
+
+	input_bus_format = bridge_state->input_bus_cfg.format;
+
+	dev_dbg(mtk_dp->dev, "input format 0x%04x, output format 0x%04x\n",
+		bridge_state->input_bus_cfg.format,
+		 bridge_state->output_bus_cfg.format);
+
+	if (input_bus_format == MEDIA_BUS_FMT_YUYV8_1X16)
+		mtk_dp->info.format = DP_PIXELFORMAT_YUV422;
+	else
+		mtk_dp->info.format = DP_PIXELFORMAT_RGB;
+
+	if (!crtc) {
+		drm_err(mtk_dp->drm_dev,
+			"Can't enable bridge as connector state doesn't have a crtc\n");
+		return -EINVAL;
+	}
+
+	drm_display_mode_to_videomode(&crtc_state->adjusted_mode, &mtk_dp->info.vm);
+
+	return 0;
+}
+
+static const struct drm_bridge_funcs mtk_dp_bridge_funcs = {
+	.atomic_check = mtk_dp_bridge_atomic_check,
+	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+	.atomic_get_output_bus_fmts = mtk_dp_bridge_atomic_get_output_bus_fmts,
+	.atomic_get_input_bus_fmts = mtk_dp_bridge_atomic_get_input_bus_fmts,
+	.atomic_reset = drm_atomic_helper_bridge_reset,
+	.attach = mtk_dp_bridge_attach,
+	.detach = mtk_dp_bridge_detach,
+	.atomic_enable = mtk_dp_bridge_atomic_enable,
+	.atomic_disable = mtk_dp_bridge_atomic_disable,
+	.mode_valid = mtk_dp_bridge_mode_valid,
+	.get_edid = mtk_dp_get_edid,
+	.detect = mtk_dp_bdg_detect,
+};
+
+static void mtk_dp_debounce_timer(struct timer_list *t)
+{
+	struct mtk_dp *mtk_dp = from_timer(mtk_dp, t, debounce_timer);
+
+	mtk_dp->need_debounce = true;
+}
+
+/*
+ * HDMI audio codec callbacks
+ */
+static int mtk_dp_audio_hw_params(struct device *dev, void *data,
+				  struct hdmi_codec_daifmt *daifmt,
+				  struct hdmi_codec_params *params)
+{
+	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
+
+	if (!mtk_dp->enabled) {
+		dev_err(mtk_dp->dev, "%s, DP is not ready!\n", __func__);
+		return -ENODEV;
+	}
+
+	mtk_dp->info.audio_cur_cfg.channels = params->cea.channels;
+	mtk_dp->info.audio_cur_cfg.sample_rate = params->sample_rate;
+
+	mtk_dp_audio_setup(mtk_dp, &mtk_dp->info.audio_cur_cfg);
+
+	return 0;
+}
+
+static int mtk_dp_audio_startup(struct device *dev, void *data)
+{
+	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
+
+	mtk_dp_audio_mute(mtk_dp, false);
+
+	return 0;
+}
+
+static void mtk_dp_audio_shutdown(struct device *dev, void *data)
+{
+	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
+
+	mtk_dp_audio_mute(mtk_dp, true);
+}
+
+static int mtk_dp_audio_get_eld(struct device *dev, void *data, uint8_t *buf,
+				size_t len)
+{
+	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
+
+	if (mtk_dp->enabled)
+		memcpy(buf, mtk_dp->conn->eld, len);
+	else
+		memset(buf, 0, len);
+
+	return 0;
+}
+
+static int mtk_dp_audio_hook_plugged_cb(struct device *dev, void *data,
+					hdmi_codec_plugged_cb fn,
+					struct device *codec_dev)
+{
+	struct mtk_dp *mtk_dp = data;
+
+	mutex_lock(&mtk_dp->update_plugged_status_lock);
+	mtk_dp->plugged_cb = fn;
+	mtk_dp->codec_dev = codec_dev;
+	mutex_unlock(&mtk_dp->update_plugged_status_lock);
+
+	mtk_dp_update_plugged_status(mtk_dp);
+
+	return 0;
+}
+
+static const struct hdmi_codec_ops mtk_dp_audio_codec_ops = {
+	.hw_params = mtk_dp_audio_hw_params,
+	.audio_startup = mtk_dp_audio_startup,
+	.audio_shutdown = mtk_dp_audio_shutdown,
+	.get_eld = mtk_dp_audio_get_eld,
+	.hook_plugged_cb = mtk_dp_audio_hook_plugged_cb,
+	.no_capture_mute = 1,
+};
+
+static int mtk_dp_register_audio_driver(struct device *dev)
+{
+	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
+	struct hdmi_codec_pdata codec_data = {
+		.ops = &mtk_dp_audio_codec_ops,
+		.max_i2s_channels = 8,
+		.i2s = 1,
+		.data = mtk_dp,
+	};
+
+	mtk_dp->audio_pdev = platform_device_register_data(dev,
+							   HDMI_CODEC_DRV_NAME,
+							   PLATFORM_DEVID_AUTO,
+							   &codec_data,
+							   sizeof(codec_data));
+	return PTR_ERR_OR_ZERO(mtk_dp->audio_pdev);
+}
+
+static int mtk_dp_probe(struct platform_device *pdev)
+{
+	struct mtk_dp *mtk_dp;
+	struct device *dev = &pdev->dev;
+	int ret, irq_num;
+
+	mtk_dp = devm_kzalloc(dev, sizeof(*mtk_dp), GFP_KERNEL);
+	if (!mtk_dp)
+		return -ENOMEM;
+
+	mtk_dp->dev = dev;
+	mtk_dp->data = (struct mtk_dp_data *)of_device_get_match_data(dev);
+
+	irq_num = platform_get_irq(pdev, 0);
+	if (irq_num < 0)
+		return dev_err_probe(dev, irq_num,
+				     "failed to request dp irq resource\n");
+
+	mtk_dp->next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 1, 0);
+	if (IS_ERR(mtk_dp->next_bridge) &&
+	    PTR_ERR(mtk_dp->next_bridge) == -ENODEV)
+		mtk_dp->next_bridge = NULL;
+	else if (IS_ERR(mtk_dp->next_bridge))
+		return dev_err_probe(dev, PTR_ERR(mtk_dp->next_bridge),
+				     "Failed to get bridge\n");
+
+	ret = mtk_dp_dt_parse(mtk_dp, pdev);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to parse dt\n");
+
+	drm_dp_aux_init(&mtk_dp->aux);
+	mtk_dp->aux.name = "aux_mtk_dp";
+	mtk_dp->aux.transfer = mtk_dp_aux_transfer;
+
+	spin_lock_init(&mtk_dp->irq_thread_lock);
+
+	ret = devm_request_threaded_irq(dev, irq_num, mtk_dp_hpd_event,
+					mtk_dp_hpd_event_thread,
+					IRQ_TYPE_LEVEL_HIGH, dev_name(dev),
+					mtk_dp);
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "failed to request mediatek dptx irq\n");
+
+	mutex_init(&mtk_dp->update_plugged_status_lock);
+
+	platform_set_drvdata(pdev, mtk_dp);
+
+	if (mtk_dp->data->audio_supported) {
+		ret = mtk_dp_register_audio_driver(dev);
+		if (ret) {
+			dev_err(dev, "Failed to register audio driver: %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	mtk_dp->phy_dev = platform_device_register_data(dev, "mediatek-dp-phy",
+							PLATFORM_DEVID_AUTO,
+							&mtk_dp->regs,
+							sizeof(struct regmap *));
+	if (IS_ERR(mtk_dp->phy_dev))
+		return dev_err_probe(dev, PTR_ERR(mtk_dp->phy_dev),
+				     "Failed to create device mediatek-dp-phy\n");
+
+	mtk_dp_get_calibration_data(mtk_dp);
+
+	mtk_dp->phy = devm_phy_get(&mtk_dp->phy_dev->dev, "dp");
+
+	if (IS_ERR(mtk_dp->phy)) {
+		platform_device_unregister(mtk_dp->phy_dev);
+		return dev_err_probe(dev, PTR_ERR(mtk_dp->phy),
+				     "Failed to get phy\n");
+	}
+
+	mtk_dp->bridge.funcs = &mtk_dp_bridge_funcs;
+	mtk_dp->bridge.of_node = dev->of_node;
+
+	mtk_dp->bridge.ops =
+		DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_HPD;
+	mtk_dp->bridge.type = mtk_dp->data->bridge_type;
+
+	drm_bridge_add(&mtk_dp->bridge);
+
+	mtk_dp->need_debounce = true;
+	timer_setup(&mtk_dp->debounce_timer, mtk_dp_debounce_timer, 0);
+
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+
+	return 0;
+}
+
+static int mtk_dp_remove(struct platform_device *pdev)
+{
+	struct mtk_dp *mtk_dp = platform_get_drvdata(pdev);
+
+	pm_runtime_put(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	del_timer_sync(&mtk_dp->debounce_timer);
+	drm_bridge_remove(&mtk_dp->bridge);
+	platform_device_unregister(mtk_dp->phy_dev);
+	if (mtk_dp->audio_pdev)
+		platform_device_unregister(mtk_dp->audio_pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mtk_dp_suspend(struct device *dev)
+{
+	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
+
+	mtk_dp_power_disable(mtk_dp);
+	mtk_dp_hwirq_enable(mtk_dp, false);
+	pm_runtime_put_sync(dev);
+
+	return 0;
+}
+
+static int mtk_dp_resume(struct device *dev)
+{
+	struct mtk_dp *mtk_dp = dev_get_drvdata(dev);
+
+	pm_runtime_get_sync(dev);
+	mtk_dp_init_port(mtk_dp);
+	mtk_dp_hwirq_enable(mtk_dp, true);
+	mtk_dp_power_enable(mtk_dp);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mtk_dp_pm_ops, mtk_dp_suspend, mtk_dp_resume);
+
+static const struct mtk_dp_data mt8195_edp_data = {
+	.bridge_type = DRM_MODE_CONNECTOR_eDP,
+	.smc_cmd = MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE,
+	.efuse_fmt = mt8195_edp_efuse_fmt,
+	.audio_supported = false,
+};
+
+static const struct mtk_dp_data mt8195_dp_data = {
+	.bridge_type = DRM_MODE_CONNECTOR_DisplayPort,
+	.smc_cmd = MTK_DP_SIP_ATF_VIDEO_UNMUTE,
+	.efuse_fmt = mt8195_dp_efuse_fmt,
+	.audio_supported = true,
+};
+
+static const struct of_device_id mtk_dp_of_match[] = {
+	{
+		.compatible = "mediatek,mt8195-edp-tx",
+		.data = &mt8195_edp_data,
+	},
+	{
+		.compatible = "mediatek,mt8195-dp-tx",
+		.data = &mt8195_dp_data,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_dp_of_match);
+
+static struct platform_driver mtk_dp_driver = {
+	.probe = mtk_dp_probe,
+	.remove = mtk_dp_remove,
+	.driver = {
+		.name = "mediatek-drm-dp",
+		.of_match_table = mtk_dp_of_match,
+		.pm = &mtk_dp_pm_ops,
+	},
+};
+
+module_platform_driver(mtk_dp_driver);
+
+MODULE_AUTHOR("Jitao Shi <jitao.shi@mediatek.com>");
+MODULE_AUTHOR("Markus Schneider-Pargmann <msp@baylibre.com>");
+MODULE_AUTHOR("Bo-Chen Chen <rex-bc.chen@mediatek.com>");
+MODULE_DESCRIPTION("MediaTek DisplayPort Driver");
+MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: phy_mtk_dp");
diff --git a/drivers/gpu/drm/mediatek/mtk_dp_reg.h b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
new file mode 100644
index 000000000..84e38cef0
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
@@ -0,0 +1,350 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019-2022 MediaTek Inc.
+ * Copyright (c) 2022 BayLibre
+ */
+#ifndef _MTK_DP_REG_H_
+#define _MTK_DP_REG_H_
+
+#define SEC_OFFSET	0x4000
+
+#define MTK_DP_HPD_DISCONNECT		BIT(1)
+#define MTK_DP_HPD_CONNECT		BIT(2)
+#define MTK_DP_HPD_INTERRUPT		BIT(3)
+
+/* offset: 0x0 */
+#define DP_PHY_GLB_BIAS_GEN_00		0x0
+#define RG_XTP_GLB_BIAS_INTR_CTRL		GENMASK(20, 16)
+#define DP_PHY_GLB_DPAUX_TX		0x8
+#define RG_CKM_PT0_CKTX_IMPSEL			GENMASK(23, 20)
+#define MTK_DP_0034			0x34
+#define DA_XTP_GLB_CKDET_EN_FORCE_VAL		BIT(15)
+#define DA_XTP_GLB_CKDET_EN_FORCE_EN		BIT(14)
+#define DA_CKM_INTCKTX_EN_FORCE_VAL		BIT(13)
+#define DA_CKM_INTCKTX_EN_FORCE_EN		BIT(12)
+#define DA_CKM_CKTX0_EN_FORCE_VAL		BIT(11)
+#define DA_CKM_CKTX0_EN_FORCE_EN		BIT(10)
+#define DA_CKM_XTAL_CK_FORCE_VAL		BIT(9)
+#define DA_CKM_XTAL_CK_FORCE_EN			BIT(8)
+#define DA_CKM_BIAS_LPF_EN_FORCE_VAL		BIT(7)
+#define DA_CKM_BIAS_LPF_EN_FORCE_EN		BIT(6)
+#define DA_CKM_BIAS_EN_FORCE_VAL		BIT(5)
+#define DA_CKM_BIAS_EN_FORCE_EN			BIT(4)
+#define DA_XTP_GLB_AVD10_ON_FORCE_VAL		BIT(3)
+#define DA_XTP_GLB_AVD10_ON_FORCE		BIT(2)
+#define DA_XTP_GLB_LDO_EN_FORCE_VAL		BIT(1)
+#define DA_XTP_GLB_LDO_EN_FORCE_EN		BIT(0)
+#define DP_PHY_LANE_TX_0		0x104
+#define RG_XTP_LN0_TX_IMPSEL_PMOS		GENMASK(15, 12)
+#define RG_XTP_LN0_TX_IMPSEL_NMOS		GENMASK(19, 16)
+#define DP_PHY_LANE_TX_1		0x204
+#define RG_XTP_LN1_TX_IMPSEL_PMOS		GENMASK(15, 12)
+#define RG_XTP_LN1_TX_IMPSEL_NMOS		GENMASK(19, 16)
+#define DP_PHY_LANE_TX_2		0x304
+#define RG_XTP_LN2_TX_IMPSEL_PMOS		GENMASK(15, 12)
+#define RG_XTP_LN2_TX_IMPSEL_NMOS		GENMASK(19, 16)
+#define DP_PHY_LANE_TX_3		0x404
+#define RG_XTP_LN3_TX_IMPSEL_PMOS		GENMASK(15, 12)
+#define RG_XTP_LN3_TX_IMPSEL_NMOS		GENMASK(19, 16)
+#define MTK_DP_1040			0x1040
+#define RG_DPAUX_RX_VALID_DEGLITCH_EN		BIT(2)
+#define RG_XTP_GLB_CKDET_EN			BIT(1)
+#define RG_DPAUX_RX_EN				BIT(0)
+
+/* offset: TOP_OFFSET (0x2000) */
+#define MTK_DP_TOP_PWR_STATE		0x2000
+#define DP_PWR_STATE_MASK			GENMASK(1, 0)
+#define DP_PWR_STATE_BANDGAP			BIT(0)
+#define DP_PWR_STATE_BANDGAP_TPLL		BIT(1)
+#define DP_PWR_STATE_BANDGAP_TPLL_LANE		GENMASK(1, 0)
+#define MTK_DP_TOP_SWING_EMP		0x2004
+#define DP_TX0_VOLT_SWING_MASK			GENMASK(1, 0)
+#define DP_TX0_VOLT_SWING_SHIFT			0
+#define DP_TX0_PRE_EMPH_MASK			GENMASK(3, 2)
+#define DP_TX0_PRE_EMPH_SHIFT			2
+#define DP_TX1_VOLT_SWING_MASK			GENMASK(9, 8)
+#define DP_TX1_VOLT_SWING_SHIFT			8
+#define DP_TX1_PRE_EMPH_MASK			GENMASK(11, 10)
+#define DP_TX2_VOLT_SWING_MASK			GENMASK(17, 16)
+#define DP_TX2_PRE_EMPH_MASK			GENMASK(19, 18)
+#define DP_TX3_VOLT_SWING_MASK			GENMASK(25, 24)
+#define DP_TX3_PRE_EMPH_MASK			GENMASK(27, 26)
+#define MTK_DP_TOP_RESET_AND_PROBE	0x2020
+#define SW_RST_B_PHYD				BIT(4)
+#define MTK_DP_TOP_IRQ_MASK		0x202c
+#define IRQ_MASK_AUX_TOP_IRQ			BIT(2)
+#define MTK_DP_TOP_MEM_PD		0x2038
+#define MEM_ISO_EN				BIT(0)
+#define FUSE_SEL				BIT(2)
+
+/* offset: ENC0_OFFSET (0x3000) */
+#define MTK_DP_ENC0_P0_3000			0x3000
+#define LANE_NUM_DP_ENC0_P0_MASK			GENMASK(1, 0)
+#define VIDEO_MUTE_SW_DP_ENC0_P0			BIT(2)
+#define VIDEO_MUTE_SEL_DP_ENC0_P0			BIT(3)
+#define ENHANCED_FRAME_EN_DP_ENC0_P0			BIT(4)
+#define MTK_DP_ENC0_P0_3004			0x3004
+#define VIDEO_M_CODE_SEL_DP_ENC0_P0_MASK		BIT(8)
+#define DP_TX_ENCODER_4P_RESET_SW_DP_ENC0_P0		BIT(9)
+#define MTK_DP_ENC0_P0_3010			0x3010
+#define HTOTAL_SW_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3014			0x3014
+#define VTOTAL_SW_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3018			0x3018
+#define HSTART_SW_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_301C			0x301c
+#define VSTART_SW_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3020			0x3020
+#define HWIDTH_SW_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3024			0x3024
+#define VHEIGHT_SW_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3028			0x3028
+#define HSW_SW_DP_ENC0_P0_MASK				GENMASK(14, 0)
+#define HSP_SW_DP_ENC0_P0_MASK				BIT(15)
+#define MTK_DP_ENC0_P0_302C			0x302c
+#define VSW_SW_DP_ENC0_P0_MASK				GENMASK(14, 0)
+#define VSP_SW_DP_ENC0_P0_MASK				BIT(15)
+#define MTK_DP_ENC0_P0_3030			0x3030
+#define HTOTAL_SEL_DP_ENC0_P0				BIT(0)
+#define VTOTAL_SEL_DP_ENC0_P0				BIT(1)
+#define HSTART_SEL_DP_ENC0_P0				BIT(2)
+#define VSTART_SEL_DP_ENC0_P0				BIT(3)
+#define HWIDTH_SEL_DP_ENC0_P0				BIT(4)
+#define VHEIGHT_SEL_DP_ENC0_P0				BIT(5)
+#define HSP_SEL_DP_ENC0_P0				BIT(6)
+#define HSW_SEL_DP_ENC0_P0				BIT(7)
+#define VSP_SEL_DP_ENC0_P0				BIT(8)
+#define VSW_SEL_DP_ENC0_P0				BIT(9)
+#define VBID_AUDIO_MUTE_FLAG_SW_DP_ENC0_P0		BIT(11)
+#define VBID_AUDIO_MUTE_FLAG_SEL_DP_ENC0_P0		BIT(12)
+#define MTK_DP_ENC0_P0_3034			0x3034
+#define MTK_DP_ENC0_P0_3038			0x3038
+#define VIDEO_SOURCE_SEL_DP_ENC0_P0_MASK		BIT(11)
+#define MTK_DP_ENC0_P0_303C			0x303c
+#define SRAM_START_READ_THRD_DP_ENC0_P0_MASK		GENMASK(5, 0)
+#define VIDEO_COLOR_DEPTH_DP_ENC0_P0_MASK		GENMASK(10, 8)
+#define VIDEO_COLOR_DEPTH_DP_ENC0_P0_16BIT		(0 << 8)
+#define VIDEO_COLOR_DEPTH_DP_ENC0_P0_12BIT		(1 << 8)
+#define VIDEO_COLOR_DEPTH_DP_ENC0_P0_10BIT		(2 << 8)
+#define VIDEO_COLOR_DEPTH_DP_ENC0_P0_8BIT		(3 << 8)
+#define VIDEO_COLOR_DEPTH_DP_ENC0_P0_6BIT		(4 << 8)
+#define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_MASK		GENMASK(14, 12)
+#define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_RGB		(0 << 12)
+#define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_YCBCR422		(1 << 12)
+#define PIXEL_ENCODE_FORMAT_DP_ENC0_P0_YCBCR420		(2 << 12)
+#define VIDEO_MN_GEN_EN_DP_ENC0_P0			BIT(15)
+#define MTK_DP_ENC0_P0_3040			0x3040
+#define SDP_DOWN_CNT_DP_ENC0_P0_VAL			0x20
+#define SDP_DOWN_CNT_INIT_DP_ENC0_P0_MASK		GENMASK(11, 0)
+#define MTK_DP_ENC0_P0_304C			0x304c
+#define VBID_VIDEO_MUTE_DP_ENC0_P0_MASK			BIT(2)
+#define SDP_VSYNC_RISING_MASK_DP_ENC0_P0_MASK		BIT(8)
+#define MTK_DP_ENC0_P0_3064			0x3064
+#define HDE_NUM_LAST_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3088			0x3088
+#define AU_EN_DP_ENC0_P0				BIT(6)
+#define AUDIO_8CH_EN_DP_ENC0_P0_MASK			BIT(7)
+#define AUDIO_8CH_SEL_DP_ENC0_P0_MASK			BIT(8)
+#define AUDIO_2CH_EN_DP_ENC0_P0_MASK			BIT(14)
+#define AUDIO_2CH_SEL_DP_ENC0_P0_MASK			BIT(15)
+#define MTK_DP_ENC0_P0_308C			0x308c
+#define CH_STATUS_0_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3090			0x3090
+#define CH_STATUS_1_DP_ENC0_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_ENC0_P0_3094			0x3094
+#define CH_STATUS_2_DP_ENC0_P0_MASK			GENMASK(7, 0)
+#define MTK_DP_ENC0_P0_30A4			0x30a4
+#define AU_TS_CFG_DP_ENC0_P0_MASK			GENMASK(7, 0)
+#define MTK_DP_ENC0_P0_30A8			0x30a8
+#define MTK_DP_ENC0_P0_30BC			0x30bc
+#define ISRC_CONT_DP_ENC0_P0				BIT(0)
+#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MASK	GENMASK(10, 8)
+#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_2	(1 << 8)
+#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_4	(2 << 8)
+#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_8	(3 << 8)
+#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_2	(5 << 8)
+#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_4	(6 << 8)
+#define AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_8	(7 << 8)
+#define MTK_DP_ENC0_P0_30D8			0x30d8
+#define MTK_DP_ENC0_P0_312C			0x312c
+#define ASP_HB2_DP_ENC0_P0_MASK				GENMASK(7, 0)
+#define ASP_HB3_DP_ENC0_P0_MASK				GENMASK(15, 8)
+#define MTK_DP_ENC0_P0_3154			0x3154
+#define PGEN_HTOTAL_DP_ENC0_P0_MASK			GENMASK(13, 0)
+#define MTK_DP_ENC0_P0_3158			0x3158
+#define PGEN_HSYNC_RISING_DP_ENC0_P0_MASK		GENMASK(13, 0)
+#define MTK_DP_ENC0_P0_315C			0x315c
+#define PGEN_HSYNC_PULSE_WIDTH_DP_ENC0_P0_MASK		GENMASK(13, 0)
+#define MTK_DP_ENC0_P0_3160			0x3160
+#define PGEN_HFDE_START_DP_ENC0_P0_MASK			GENMASK(13, 0)
+#define MTK_DP_ENC0_P0_3164			0x3164
+#define PGEN_HFDE_ACTIVE_WIDTH_DP_ENC0_P0_MASK		GENMASK(13, 0)
+#define MTK_DP_ENC0_P0_3168			0x3168
+#define PGEN_VTOTAL_DP_ENC0_P0_MASK			GENMASK(12, 0)
+#define MTK_DP_ENC0_P0_316C			0x316c
+#define PGEN_VSYNC_RISING_DP_ENC0_P0_MASK		GENMASK(12, 0)
+#define MTK_DP_ENC0_P0_3170			0x3170
+#define PGEN_VSYNC_PULSE_WIDTH_DP_ENC0_P0_MASK		GENMASK(12, 0)
+#define MTK_DP_ENC0_P0_3174			0x3174
+#define PGEN_VFDE_START_DP_ENC0_P0_MASK			GENMASK(12, 0)
+#define MTK_DP_ENC0_P0_3178			0x3178
+#define PGEN_VFDE_ACTIVE_WIDTH_DP_ENC0_P0_MASK		GENMASK(12, 0)
+#define MTK_DP_ENC0_P0_31B0			0x31b0
+#define PGEN_PATTERN_SEL_VAL				4
+#define PGEN_PATTERN_SEL_MASK				GENMASK(6, 4)
+#define MTK_DP_ENC0_P0_31EC			0x31ec
+#define AUDIO_CH_SRC_SEL_DP_ENC0_P0			BIT(4)
+#define ISRC1_HB3_DP_ENC0_P0_MASK			GENMASK(15, 8)
+
+/* offset: ENC1_OFFSET (0x3200) */
+#define MTK_DP_ENC1_P0_3200			0x3200
+#define MTK_DP_ENC1_P0_3280			0x3280
+#define SDP_PACKET_TYPE_DP_ENC1_P0_MASK			GENMASK(4, 0)
+#define SDP_PACKET_W_DP_ENC1_P0				BIT(5)
+#define SDP_PACKET_W_DP_ENC1_P0_MASK			BIT(5)
+#define MTK_DP_ENC1_P0_3300			0x3300
+#define VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_VAL		2
+#define VIDEO_AFIFO_RDY_SEL_DP_ENC1_P0_MASK		GENMASK(9, 8)
+#define MTK_DP_ENC1_P0_3304			0x3304
+#define AU_PRTY_REGEN_DP_ENC1_P0_MASK			BIT(8)
+#define AU_CH_STS_REGEN_DP_ENC1_P0_MASK			BIT(9)
+#define AUDIO_SAMPLE_PRSENT_REGEN_DP_ENC1_P0_MASK	BIT(12)
+#define MTK_DP_ENC1_P0_3324			0x3324
+#define AUDIO_SOURCE_MUX_DP_ENC1_P0_MASK		GENMASK(9, 8)
+#define AUDIO_SOURCE_MUX_DP_ENC1_P0_DPRX		0
+#define MTK_DP_ENC1_P0_3364			0x3364
+#define SDP_DOWN_CNT_IN_HBLANK_DP_ENC1_P0_VAL		0x20
+#define SDP_DOWN_CNT_INIT_IN_HBLANK_DP_ENC1_P0_MASK	GENMASK(11, 0)
+#define FIFO_READ_START_POINT_DP_ENC1_P0_VAL		4
+#define FIFO_READ_START_POINT_DP_ENC1_P0_MASK		GENMASK(15, 12)
+#define MTK_DP_ENC1_P0_3368			0x3368
+#define VIDEO_SRAM_FIFO_CNT_RESET_SEL_DP_ENC1_P0	BIT(0)
+#define VIDEO_STABLE_CNT_THRD_DP_ENC1_P0		BIT(4)
+#define SDP_DP13_EN_DP_ENC1_P0				BIT(8)
+#define BS2BS_MODE_DP_ENC1_P0				BIT(12)
+#define BS2BS_MODE_DP_ENC1_P0_MASK			GENMASK(13, 12)
+#define BS2BS_MODE_DP_ENC1_P0_VAL			1
+#define DP_ENC1_P0_3368_VAL				(VIDEO_SRAM_FIFO_CNT_RESET_SEL_DP_ENC1_P0 | \
+							 VIDEO_STABLE_CNT_THRD_DP_ENC1_P0 | \
+							 SDP_DP13_EN_DP_ENC1_P0 | \
+							 BS2BS_MODE_DP_ENC1_P0)
+#define MTK_DP_ENC1_P0_33F4			0x33f4
+#define DP_ENC_DUMMY_RW_1_AUDIO_RST_EN			BIT(0)
+#define DP_ENC_DUMMY_RW_1				BIT(9)
+
+/* offset: TRANS_OFFSET (0x3400) */
+#define MTK_DP_TRANS_P0_3400				0x3400
+#define PATTERN1_EN_DP_TRANS_P0_MASK				BIT(12)
+#define PATTERN2_EN_DP_TRANS_P0_MASK				BIT(13)
+#define PATTERN3_EN_DP_TRANS_P0_MASK				BIT(14)
+#define PATTERN4_EN_DP_TRANS_P0_MASK				BIT(15)
+#define MTK_DP_TRANS_P0_3404				0x3404
+#define DP_SCR_EN_DP_TRANS_P0_MASK				BIT(0)
+#define MTK_DP_TRANS_P0_340C				0x340c
+#define DP_TX_TRANSMITTER_4P_RESET_SW_DP_TRANS_P0		BIT(13)
+#define MTK_DP_TRANS_P0_3410				0x3410
+#define HPD_DEB_THD_DP_TRANS_P0_MASK				GENMASK(3, 0)
+#define HPD_INT_THD_DP_TRANS_P0_MASK				GENMASK(7, 4)
+#define HPD_INT_THD_DP_TRANS_P0_LOWER_500US			(2 << 4)
+#define HPD_INT_THD_DP_TRANS_P0_UPPER_1100US			(2 << 6)
+#define HPD_DISC_THD_DP_TRANS_P0_MASK				GENMASK(11, 8)
+#define HPD_CONN_THD_DP_TRANS_P0_MASK				GENMASK(15, 12)
+#define MTK_DP_TRANS_P0_3414				0x3414
+#define HPD_DB_DP_TRANS_P0_MASK					BIT(2)
+#define MTK_DP_TRANS_P0_3418				0x3418
+#define IRQ_CLR_DP_TRANS_P0_MASK				GENMASK(3, 0)
+#define IRQ_MASK_DP_TRANS_P0_MASK				GENMASK(7, 4)
+#define IRQ_MASK_DP_TRANS_P0_DISC_IRQ				(BIT(1) << 4)
+#define IRQ_MASK_DP_TRANS_P0_CONN_IRQ				(BIT(2) << 4)
+#define IRQ_MASK_DP_TRANS_P0_INT_IRQ				(BIT(3) << 4)
+#define IRQ_STATUS_DP_TRANS_P0_MASK				GENMASK(15, 12)
+#define MTK_DP_TRANS_P0_342C				0x342c
+#define XTAL_FREQ_DP_TRANS_P0_DEFAULT				(BIT(0) | BIT(3) | BIT(5) | BIT(6))
+#define XTAL_FREQ_DP_TRANS_P0_MASK				GENMASK(7, 0)
+#define MTK_DP_TRANS_P0_3430				0x3430
+#define HPD_INT_THD_ECO_DP_TRANS_P0_MASK			GENMASK(1, 0)
+#define HPD_INT_THD_ECO_DP_TRANS_P0_HIGH_BOUND_EXT		BIT(1)
+#define MTK_DP_TRANS_P0_34A4				0x34a4
+#define LANE_NUM_DP_TRANS_P0_MASK				GENMASK(3, 2)
+#define MTK_DP_TRANS_P0_3540				0x3540
+#define FEC_EN_DP_TRANS_P0_MASK					BIT(0)
+#define FEC_CLOCK_EN_MODE_DP_TRANS_P0				BIT(3)
+#define MTK_DP_TRANS_P0_3580				0x3580
+#define POST_MISC_DATA_LANE0_OV_DP_TRANS_P0_MASK		BIT(8)
+#define POST_MISC_DATA_LANE1_OV_DP_TRANS_P0_MASK		BIT(9)
+#define POST_MISC_DATA_LANE2_OV_DP_TRANS_P0_MASK		BIT(10)
+#define POST_MISC_DATA_LANE3_OV_DP_TRANS_P0_MASK		BIT(11)
+#define MTK_DP_TRANS_P0_35C8				0x35c8
+#define SW_IRQ_CLR_DP_TRANS_P0_MASK				GENMASK(15, 0)
+#define SW_IRQ_STATUS_DP_TRANS_P0_MASK				GENMASK(15, 0)
+#define MTK_DP_TRANS_P0_35D0				0x35d0
+#define SW_IRQ_FINAL_STATUS_DP_TRANS_P0_MASK			GENMASK(15, 0)
+#define MTK_DP_TRANS_P0_35F0				0x35f0
+#define DP_TRANS_DUMMY_RW_0					BIT(3)
+#define DP_TRANS_DUMMY_RW_0_MASK				GENMASK(3, 2)
+
+/* offset: AUX_OFFSET (0x3600) */
+#define MTK_DP_AUX_P0_360C			0x360c
+#define AUX_TIMEOUT_THR_AUX_TX_P0_MASK			GENMASK(12, 0)
+#define AUX_TIMEOUT_THR_AUX_TX_P0_VAL			0x1595
+#define MTK_DP_AUX_P0_3614			0x3614
+#define AUX_RX_UI_CNT_THR_AUX_TX_P0_MASK		GENMASK(6, 0)
+#define AUX_RX_UI_CNT_THR_AUX_FOR_26M			13
+#define MTK_DP_AUX_P0_3618			0x3618
+#define AUX_RX_FIFO_FULL_AUX_TX_P0_MASK			BIT(9)
+#define AUX_RX_FIFO_WRITE_POINTER_AUX_TX_P0_MASK	GENMASK(3, 0)
+#define MTK_DP_AUX_P0_3620			0x3620
+#define AUX_RD_MODE_AUX_TX_P0_MASK			BIT(9)
+#define AUX_RX_FIFO_READ_PULSE_TX_P0			BIT(8)
+#define AUX_RX_FIFO_READ_DATA_AUX_TX_P0_MASK		GENMASK(7, 0)
+#define MTK_DP_AUX_P0_3624			0x3624
+#define AUX_RX_REPLY_COMMAND_AUX_TX_P0_MASK		GENMASK(3, 0)
+#define MTK_DP_AUX_P0_3628			0x3628
+#define AUX_RX_PHY_STATE_AUX_TX_P0_MASK			GENMASK(9, 0)
+#define AUX_RX_PHY_STATE_AUX_TX_P0_RX_IDLE		BIT(0)
+#define MTK_DP_AUX_P0_362C			0x362c
+#define AUX_NO_LENGTH_AUX_TX_P0				BIT(0)
+#define AUX_TX_AUXTX_OV_EN_AUX_TX_P0_MASK		BIT(1)
+#define AUX_RESERVED_RW_0_AUX_TX_P0_MASK		GENMASK(15, 2)
+#define MTK_DP_AUX_P0_3630			0x3630
+#define AUX_TX_REQUEST_READY_AUX_TX_P0			BIT(3)
+#define MTK_DP_AUX_P0_3634			0x3634
+#define AUX_TX_OVER_SAMPLE_RATE_AUX_TX_P0_MASK		GENMASK(15, 8)
+#define AUX_TX_OVER_SAMPLE_RATE_FOR_26M			25
+#define MTK_DP_AUX_P0_3640			0x3640
+#define AUX_RX_AUX_RECV_COMPLETE_IRQ_AUX_TX_P0		BIT(6)
+#define AUX_RX_EDID_RECV_COMPLETE_IRQ_AUX_TX_P0		BIT(5)
+#define AUX_RX_MCCS_RECV_COMPLETE_IRQ_AUX_TX_P0		BIT(4)
+#define AUX_RX_CMD_RECV_IRQ_AUX_TX_P0			BIT(3)
+#define AUX_RX_ADDR_RECV_IRQ_AUX_TX_P0			BIT(2)
+#define AUX_RX_DATA_RECV_IRQ_AUX_TX_P0			BIT(1)
+#define AUX_400US_TIMEOUT_IRQ_AUX_TX_P0			BIT(0)
+#define DP_AUX_P0_3640_VAL				(AUX_400US_TIMEOUT_IRQ_AUX_TX_P0 | \
+							 AUX_RX_DATA_RECV_IRQ_AUX_TX_P0 | \
+							 AUX_RX_ADDR_RECV_IRQ_AUX_TX_P0 | \
+							 AUX_RX_CMD_RECV_IRQ_AUX_TX_P0 | \
+							 AUX_RX_MCCS_RECV_COMPLETE_IRQ_AUX_TX_P0 | \
+							 AUX_RX_EDID_RECV_COMPLETE_IRQ_AUX_TX_P0 | \
+							 AUX_RX_AUX_RECV_COMPLETE_IRQ_AUX_TX_P0)
+#define MTK_DP_AUX_P0_3644			0x3644
+#define MCU_REQUEST_COMMAND_AUX_TX_P0_MASK		GENMASK(3, 0)
+#define MTK_DP_AUX_P0_3648			0x3648
+#define MCU_REQUEST_ADDRESS_LSB_AUX_TX_P0_MASK		GENMASK(15, 0)
+#define MTK_DP_AUX_P0_364C			0x364c
+#define MCU_REQUEST_ADDRESS_MSB_AUX_TX_P0_MASK		GENMASK(3, 0)
+#define MTK_DP_AUX_P0_3650			0x3650
+#define MCU_REQ_DATA_NUM_AUX_TX_P0_MASK			GENMASK(15, 12)
+#define PHY_FIFO_RST_AUX_TX_P0_MASK			BIT(9)
+#define MCU_ACK_TRAN_COMPLETE_AUX_TX_P0			BIT(8)
+#define MTK_DP_AUX_P0_3658			0x3658
+#define AUX_TX_OV_EN_AUX_TX_P0_MASK			BIT(0)
+#define MTK_DP_AUX_P0_3690			0x3690
+#define RX_REPLY_COMPLETE_MODE_AUX_TX_P0		BIT(8)
+#define MTK_DP_AUX_P0_3704			0x3704
+#define AUX_TX_FIFO_WDATA_NEW_MODE_T_AUX_TX_P0_MASK	BIT(1)
+#define AUX_TX_FIFO_NEW_MODE_EN_AUX_TX_P0		BIT(2)
+#define MTK_DP_AUX_P0_3708			0x3708
+#define MTK_DP_AUX_P0_37C8			0x37c8
+#define MTK_ATOP_EN_AUX_TX_P0				BIT(0)
+
+#endif /*_MTK_DP_REG_H_*/
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
new file mode 100644
index 000000000..1f5d39a40
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -0,0 +1,1099 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/media-bus-format.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+
+#include <video/videomode.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_bridge_connector.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_of.h>
+#include <drm/drm_simple_kms_helper.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_dpi_regs.h"
+#include "mtk_drm_ddp_comp.h"
+
+enum mtk_dpi_out_bit_num {
+	MTK_DPI_OUT_BIT_NUM_8BITS,
+	MTK_DPI_OUT_BIT_NUM_10BITS,
+	MTK_DPI_OUT_BIT_NUM_12BITS,
+	MTK_DPI_OUT_BIT_NUM_16BITS
+};
+
+enum mtk_dpi_out_yc_map {
+	MTK_DPI_OUT_YC_MAP_RGB,
+	MTK_DPI_OUT_YC_MAP_CYCY,
+	MTK_DPI_OUT_YC_MAP_YCYC,
+	MTK_DPI_OUT_YC_MAP_CY,
+	MTK_DPI_OUT_YC_MAP_YC
+};
+
+enum mtk_dpi_out_channel_swap {
+	MTK_DPI_OUT_CHANNEL_SWAP_RGB,
+	MTK_DPI_OUT_CHANNEL_SWAP_GBR,
+	MTK_DPI_OUT_CHANNEL_SWAP_BRG,
+	MTK_DPI_OUT_CHANNEL_SWAP_RBG,
+	MTK_DPI_OUT_CHANNEL_SWAP_GRB,
+	MTK_DPI_OUT_CHANNEL_SWAP_BGR
+};
+
+enum mtk_dpi_out_color_format {
+	MTK_DPI_COLOR_FORMAT_RGB,
+	MTK_DPI_COLOR_FORMAT_YCBCR_422
+};
+
+struct mtk_dpi {
+	struct drm_encoder encoder;
+	struct drm_bridge bridge;
+	struct drm_bridge *next_bridge;
+	struct drm_connector *connector;
+	void __iomem *regs;
+	struct device *dev;
+	struct clk *engine_clk;
+	struct clk *pixel_clk;
+	struct clk *tvd_clk;
+	int irq;
+	struct drm_display_mode mode;
+	const struct mtk_dpi_conf *conf;
+	enum mtk_dpi_out_color_format color_format;
+	enum mtk_dpi_out_yc_map yc_map;
+	enum mtk_dpi_out_bit_num bit_num;
+	enum mtk_dpi_out_channel_swap channel_swap;
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *pins_gpio;
+	struct pinctrl_state *pins_dpi;
+	u32 output_fmt;
+	int refcount;
+};
+
+static inline struct mtk_dpi *bridge_to_dpi(struct drm_bridge *b)
+{
+	return container_of(b, struct mtk_dpi, bridge);
+}
+
+enum mtk_dpi_polarity {
+	MTK_DPI_POLARITY_RISING,
+	MTK_DPI_POLARITY_FALLING,
+};
+
+struct mtk_dpi_polarities {
+	enum mtk_dpi_polarity de_pol;
+	enum mtk_dpi_polarity ck_pol;
+	enum mtk_dpi_polarity hsync_pol;
+	enum mtk_dpi_polarity vsync_pol;
+};
+
+struct mtk_dpi_sync_param {
+	u32 sync_width;
+	u32 front_porch;
+	u32 back_porch;
+	bool shift_half_line;
+};
+
+struct mtk_dpi_yc_limit {
+	u16 y_top;
+	u16 y_bottom;
+	u16 c_top;
+	u16 c_bottom;
+};
+
+/**
+ * struct mtk_dpi_conf - Configuration of mediatek dpi.
+ * @cal_factor: Callback function to calculate factor value.
+ * @reg_h_fre_con: Register address of frequency control.
+ * @max_clock_khz: Max clock frequency supported for this SoCs in khz units.
+ * @edge_sel_en: Enable of edge selection.
+ * @output_fmts: Array of supported output formats.
+ * @num_output_fmts: Quantity of supported output formats.
+ * @is_ck_de_pol: Support CK/DE polarity.
+ * @swap_input_support: Support input swap function.
+ * @support_direct_pin: IP supports direct connection to dpi panels.
+ * @input_2pixel: Input pixel of dp_intf is 2 pixel per round, so enable this
+ *		  config to enable this feature.
+ * @dimension_mask: Mask used for HWIDTH, HPORCH, VSYNC_WIDTH and VSYNC_PORCH
+ *		    (no shift).
+ * @hvsize_mask: Mask of HSIZE and VSIZE mask (no shift).
+ * @channel_swap_shift: Shift value of channel swap.
+ * @yuv422_en_bit: Enable bit of yuv422.
+ * @csc_enable_bit: Enable bit of CSC.
+ * @pixels_per_iter: Quantity of transferred pixels per iteration.
+ */
+struct mtk_dpi_conf {
+	unsigned int (*cal_factor)(int clock);
+	u32 reg_h_fre_con;
+	u32 max_clock_khz;
+	bool edge_sel_en;
+	const u32 *output_fmts;
+	u32 num_output_fmts;
+	bool is_ck_de_pol;
+	bool swap_input_support;
+	bool support_direct_pin;
+	bool input_2pixel;
+	u32 dimension_mask;
+	u32 hvsize_mask;
+	u32 channel_swap_shift;
+	u32 yuv422_en_bit;
+	u32 csc_enable_bit;
+	u32 pixels_per_iter;
+};
+
+static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
+{
+	u32 tmp = readl(dpi->regs + offset) & ~mask;
+
+	tmp |= (val & mask);
+	writel(tmp, dpi->regs + offset);
+}
+
+static void mtk_dpi_sw_reset(struct mtk_dpi *dpi, bool reset)
+{
+	mtk_dpi_mask(dpi, DPI_RET, reset ? RST : 0, RST);
+}
+
+static void mtk_dpi_enable(struct mtk_dpi *dpi)
+{
+	mtk_dpi_mask(dpi, DPI_EN, EN, EN);
+}
+
+static void mtk_dpi_disable(struct mtk_dpi *dpi)
+{
+	mtk_dpi_mask(dpi, DPI_EN, 0, EN);
+}
+
+static void mtk_dpi_config_hsync(struct mtk_dpi *dpi,
+				 struct mtk_dpi_sync_param *sync)
+{
+	mtk_dpi_mask(dpi, DPI_TGEN_HWIDTH, sync->sync_width << HPW,
+		     dpi->conf->dimension_mask << HPW);
+	mtk_dpi_mask(dpi, DPI_TGEN_HPORCH, sync->back_porch << HBP,
+		     dpi->conf->dimension_mask << HBP);
+	mtk_dpi_mask(dpi, DPI_TGEN_HPORCH, sync->front_porch << HFP,
+		     dpi->conf->dimension_mask << HFP);
+}
+
+static void mtk_dpi_config_vsync(struct mtk_dpi *dpi,
+				 struct mtk_dpi_sync_param *sync,
+				 u32 width_addr, u32 porch_addr)
+{
+	mtk_dpi_mask(dpi, width_addr,
+		     sync->shift_half_line << VSYNC_HALF_LINE_SHIFT,
+		     VSYNC_HALF_LINE_MASK);
+	mtk_dpi_mask(dpi, width_addr,
+		     sync->sync_width << VSYNC_WIDTH_SHIFT,
+		     dpi->conf->dimension_mask << VSYNC_WIDTH_SHIFT);
+	mtk_dpi_mask(dpi, porch_addr,
+		     sync->back_porch << VSYNC_BACK_PORCH_SHIFT,
+		     dpi->conf->dimension_mask << VSYNC_BACK_PORCH_SHIFT);
+	mtk_dpi_mask(dpi, porch_addr,
+		     sync->front_porch << VSYNC_FRONT_PORCH_SHIFT,
+		     dpi->conf->dimension_mask << VSYNC_FRONT_PORCH_SHIFT);
+}
+
+static void mtk_dpi_config_vsync_lodd(struct mtk_dpi *dpi,
+				      struct mtk_dpi_sync_param *sync)
+{
+	mtk_dpi_config_vsync(dpi, sync, DPI_TGEN_VWIDTH, DPI_TGEN_VPORCH);
+}
+
+static void mtk_dpi_config_vsync_leven(struct mtk_dpi *dpi,
+				       struct mtk_dpi_sync_param *sync)
+{
+	mtk_dpi_config_vsync(dpi, sync, DPI_TGEN_VWIDTH_LEVEN,
+			     DPI_TGEN_VPORCH_LEVEN);
+}
+
+static void mtk_dpi_config_vsync_rodd(struct mtk_dpi *dpi,
+				      struct mtk_dpi_sync_param *sync)
+{
+	mtk_dpi_config_vsync(dpi, sync, DPI_TGEN_VWIDTH_RODD,
+			     DPI_TGEN_VPORCH_RODD);
+}
+
+static void mtk_dpi_config_vsync_reven(struct mtk_dpi *dpi,
+				       struct mtk_dpi_sync_param *sync)
+{
+	mtk_dpi_config_vsync(dpi, sync, DPI_TGEN_VWIDTH_REVEN,
+			     DPI_TGEN_VPORCH_REVEN);
+}
+
+static void mtk_dpi_config_pol(struct mtk_dpi *dpi,
+			       struct mtk_dpi_polarities *dpi_pol)
+{
+	unsigned int pol;
+	unsigned int mask;
+
+	mask = HSYNC_POL | VSYNC_POL;
+	pol = (dpi_pol->hsync_pol == MTK_DPI_POLARITY_RISING ? 0 : HSYNC_POL) |
+	      (dpi_pol->vsync_pol == MTK_DPI_POLARITY_RISING ? 0 : VSYNC_POL);
+	if (dpi->conf->is_ck_de_pol) {
+		mask |= CK_POL | DE_POL;
+		pol |= (dpi_pol->ck_pol == MTK_DPI_POLARITY_RISING ?
+			0 : CK_POL) |
+		       (dpi_pol->de_pol == MTK_DPI_POLARITY_RISING ?
+			0 : DE_POL);
+	}
+
+	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, pol, mask);
+}
+
+static void mtk_dpi_config_3d(struct mtk_dpi *dpi, bool en_3d)
+{
+	mtk_dpi_mask(dpi, DPI_CON, en_3d ? TDFP_EN : 0, TDFP_EN);
+}
+
+static void mtk_dpi_config_interface(struct mtk_dpi *dpi, bool inter)
+{
+	mtk_dpi_mask(dpi, DPI_CON, inter ? INTL_EN : 0, INTL_EN);
+}
+
+static void mtk_dpi_config_fb_size(struct mtk_dpi *dpi, u32 width, u32 height)
+{
+	mtk_dpi_mask(dpi, DPI_SIZE, width << HSIZE,
+		     dpi->conf->hvsize_mask << HSIZE);
+	mtk_dpi_mask(dpi, DPI_SIZE, height << VSIZE,
+		     dpi->conf->hvsize_mask << VSIZE);
+}
+
+static void mtk_dpi_config_channel_limit(struct mtk_dpi *dpi)
+{
+	struct mtk_dpi_yc_limit limit;
+
+	if (drm_default_rgb_quant_range(&dpi->mode) ==
+	    HDMI_QUANTIZATION_RANGE_LIMITED) {
+		limit.y_bottom = 0x10;
+		limit.y_top = 0xfe0;
+		limit.c_bottom = 0x10;
+		limit.c_top = 0xfe0;
+	} else {
+		limit.y_bottom = 0;
+		limit.y_top = 0xfff;
+		limit.c_bottom = 0;
+		limit.c_top = 0xfff;
+	}
+
+	mtk_dpi_mask(dpi, DPI_Y_LIMIT, limit.y_bottom << Y_LIMINT_BOT,
+		     Y_LIMINT_BOT_MASK);
+	mtk_dpi_mask(dpi, DPI_Y_LIMIT, limit.y_top << Y_LIMINT_TOP,
+		     Y_LIMINT_TOP_MASK);
+	mtk_dpi_mask(dpi, DPI_C_LIMIT, limit.c_bottom << C_LIMIT_BOT,
+		     C_LIMIT_BOT_MASK);
+	mtk_dpi_mask(dpi, DPI_C_LIMIT, limit.c_top << C_LIMIT_TOP,
+		     C_LIMIT_TOP_MASK);
+}
+
+static void mtk_dpi_config_bit_num(struct mtk_dpi *dpi,
+				   enum mtk_dpi_out_bit_num num)
+{
+	u32 val;
+
+	switch (num) {
+	case MTK_DPI_OUT_BIT_NUM_8BITS:
+		val = OUT_BIT_8;
+		break;
+	case MTK_DPI_OUT_BIT_NUM_10BITS:
+		val = OUT_BIT_10;
+		break;
+	case MTK_DPI_OUT_BIT_NUM_12BITS:
+		val = OUT_BIT_12;
+		break;
+	case MTK_DPI_OUT_BIT_NUM_16BITS:
+		val = OUT_BIT_16;
+		break;
+	default:
+		val = OUT_BIT_8;
+		break;
+	}
+	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << OUT_BIT,
+		     OUT_BIT_MASK);
+}
+
+static void mtk_dpi_config_yc_map(struct mtk_dpi *dpi,
+				  enum mtk_dpi_out_yc_map map)
+{
+	u32 val;
+
+	switch (map) {
+	case MTK_DPI_OUT_YC_MAP_RGB:
+		val = YC_MAP_RGB;
+		break;
+	case MTK_DPI_OUT_YC_MAP_CYCY:
+		val = YC_MAP_CYCY;
+		break;
+	case MTK_DPI_OUT_YC_MAP_YCYC:
+		val = YC_MAP_YCYC;
+		break;
+	case MTK_DPI_OUT_YC_MAP_CY:
+		val = YC_MAP_CY;
+		break;
+	case MTK_DPI_OUT_YC_MAP_YC:
+		val = YC_MAP_YC;
+		break;
+	default:
+		val = YC_MAP_RGB;
+		break;
+	}
+
+	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING, val << YC_MAP, YC_MAP_MASK);
+}
+
+static void mtk_dpi_config_channel_swap(struct mtk_dpi *dpi,
+					enum mtk_dpi_out_channel_swap swap)
+{
+	u32 val;
+
+	switch (swap) {
+	case MTK_DPI_OUT_CHANNEL_SWAP_RGB:
+		val = SWAP_RGB;
+		break;
+	case MTK_DPI_OUT_CHANNEL_SWAP_GBR:
+		val = SWAP_GBR;
+		break;
+	case MTK_DPI_OUT_CHANNEL_SWAP_BRG:
+		val = SWAP_BRG;
+		break;
+	case MTK_DPI_OUT_CHANNEL_SWAP_RBG:
+		val = SWAP_RBG;
+		break;
+	case MTK_DPI_OUT_CHANNEL_SWAP_GRB:
+		val = SWAP_GRB;
+		break;
+	case MTK_DPI_OUT_CHANNEL_SWAP_BGR:
+		val = SWAP_BGR;
+		break;
+	default:
+		val = SWAP_RGB;
+		break;
+	}
+
+	mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING,
+		     val << dpi->conf->channel_swap_shift,
+		     CH_SWAP_MASK << dpi->conf->channel_swap_shift);
+}
+
+static void mtk_dpi_config_yuv422_enable(struct mtk_dpi *dpi, bool enable)
+{
+	mtk_dpi_mask(dpi, DPI_CON, enable ? dpi->conf->yuv422_en_bit : 0,
+		     dpi->conf->yuv422_en_bit);
+}
+
+static void mtk_dpi_config_csc_enable(struct mtk_dpi *dpi, bool enable)
+{
+	mtk_dpi_mask(dpi, DPI_CON, enable ? dpi->conf->csc_enable_bit : 0,
+		     dpi->conf->csc_enable_bit);
+}
+
+static void mtk_dpi_config_swap_input(struct mtk_dpi *dpi, bool enable)
+{
+	mtk_dpi_mask(dpi, DPI_CON, enable ? IN_RB_SWAP : 0, IN_RB_SWAP);
+}
+
+static void mtk_dpi_config_2n_h_fre(struct mtk_dpi *dpi)
+{
+	mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, H_FRE_2N, H_FRE_2N);
+}
+
+static void mtk_dpi_config_disable_edge(struct mtk_dpi *dpi)
+{
+	if (dpi->conf->edge_sel_en)
+		mtk_dpi_mask(dpi, dpi->conf->reg_h_fre_con, 0, EDGE_SEL_EN);
+}
+
+static void mtk_dpi_config_color_format(struct mtk_dpi *dpi,
+					enum mtk_dpi_out_color_format format)
+{
+	mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB);
+
+	if (format == MTK_DPI_COLOR_FORMAT_YCBCR_422) {
+		mtk_dpi_config_yuv422_enable(dpi, true);
+		mtk_dpi_config_csc_enable(dpi, true);
+
+		/*
+		 * If height is smaller than 720, we need to use RGB_TO_BT601
+		 * to transfer to yuv422. Otherwise, we use RGB_TO_JPEG.
+		 */
+		mtk_dpi_mask(dpi, DPI_MATRIX_SET, dpi->mode.hdisplay <= 720 ?
+			     MATRIX_SEL_RGB_TO_BT601 : MATRIX_SEL_RGB_TO_JPEG,
+			     INT_MATRIX_SEL_MASK);
+	} else {
+		mtk_dpi_config_yuv422_enable(dpi, false);
+		mtk_dpi_config_csc_enable(dpi, false);
+		if (dpi->conf->swap_input_support)
+			mtk_dpi_config_swap_input(dpi, false);
+	}
+}
+
+static void mtk_dpi_dual_edge(struct mtk_dpi *dpi)
+{
+	if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
+	    (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE)) {
+		mtk_dpi_mask(dpi, DPI_DDR_SETTING, DDR_EN | DDR_4PHASE,
+			     DDR_EN | DDR_4PHASE);
+		mtk_dpi_mask(dpi, DPI_OUTPUT_SETTING,
+			     dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE ?
+			     EDGE_SEL : 0, EDGE_SEL);
+	} else {
+		mtk_dpi_mask(dpi, DPI_DDR_SETTING, DDR_EN | DDR_4PHASE, 0);
+	}
+}
+
+static void mtk_dpi_power_off(struct mtk_dpi *dpi)
+{
+	if (WARN_ON(dpi->refcount == 0))
+		return;
+
+	if (--dpi->refcount != 0)
+		return;
+
+	mtk_dpi_disable(dpi);
+	clk_disable_unprepare(dpi->pixel_clk);
+	clk_disable_unprepare(dpi->engine_clk);
+}
+
+static int mtk_dpi_power_on(struct mtk_dpi *dpi)
+{
+	int ret;
+
+	if (++dpi->refcount != 1)
+		return 0;
+
+	ret = clk_prepare_enable(dpi->engine_clk);
+	if (ret) {
+		dev_err(dpi->dev, "Failed to enable engine clock: %d\n", ret);
+		goto err_refcount;
+	}
+
+	ret = clk_prepare_enable(dpi->pixel_clk);
+	if (ret) {
+		dev_err(dpi->dev, "Failed to enable pixel clock: %d\n", ret);
+		goto err_pixel;
+	}
+
+	return 0;
+
+err_pixel:
+	clk_disable_unprepare(dpi->engine_clk);
+err_refcount:
+	dpi->refcount--;
+	return ret;
+}
+
+static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
+				    struct drm_display_mode *mode)
+{
+	struct mtk_dpi_polarities dpi_pol;
+	struct mtk_dpi_sync_param hsync;
+	struct mtk_dpi_sync_param vsync_lodd = { 0 };
+	struct mtk_dpi_sync_param vsync_leven = { 0 };
+	struct mtk_dpi_sync_param vsync_rodd = { 0 };
+	struct mtk_dpi_sync_param vsync_reven = { 0 };
+	struct videomode vm = { 0 };
+	unsigned long pll_rate;
+	unsigned int factor;
+
+	/* let pll_rate can fix the valid range of tvdpll (1G~2GHz) */
+	factor = dpi->conf->cal_factor(mode->clock);
+	drm_display_mode_to_videomode(mode, &vm);
+	pll_rate = vm.pixelclock * factor;
+
+	dev_dbg(dpi->dev, "Want PLL %lu Hz, pixel clock %lu Hz\n",
+		pll_rate, vm.pixelclock);
+
+	clk_set_rate(dpi->tvd_clk, pll_rate);
+	pll_rate = clk_get_rate(dpi->tvd_clk);
+
+	/*
+	 * Depending on the IP version, we may output a different amount of
+	 * pixels for each iteration: divide the clock by this number and
+	 * adjust the display porches accordingly.
+	 */
+	vm.pixelclock = pll_rate / factor;
+	vm.pixelclock /= dpi->conf->pixels_per_iter;
+
+	if ((dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_LE) ||
+	    (dpi->output_fmt == MEDIA_BUS_FMT_RGB888_2X12_BE))
+		clk_set_rate(dpi->pixel_clk, vm.pixelclock * 2);
+	else
+		clk_set_rate(dpi->pixel_clk, vm.pixelclock);
+
+
+	vm.pixelclock = clk_get_rate(dpi->pixel_clk);
+
+	dev_dbg(dpi->dev, "Got  PLL %lu Hz, pixel clock %lu Hz\n",
+		pll_rate, vm.pixelclock);
+
+	dpi_pol.ck_pol = MTK_DPI_POLARITY_FALLING;
+	dpi_pol.de_pol = MTK_DPI_POLARITY_RISING;
+	dpi_pol.hsync_pol = vm.flags & DISPLAY_FLAGS_HSYNC_HIGH ?
+			    MTK_DPI_POLARITY_FALLING : MTK_DPI_POLARITY_RISING;
+	dpi_pol.vsync_pol = vm.flags & DISPLAY_FLAGS_VSYNC_HIGH ?
+			    MTK_DPI_POLARITY_FALLING : MTK_DPI_POLARITY_RISING;
+
+	/*
+	 * Depending on the IP version, we may output a different amount of
+	 * pixels for each iteration: divide the clock by this number and
+	 * adjust the display porches accordingly.
+	 */
+	hsync.sync_width = vm.hsync_len / dpi->conf->pixels_per_iter;
+	hsync.back_porch = vm.hback_porch / dpi->conf->pixels_per_iter;
+	hsync.front_porch = vm.hfront_porch / dpi->conf->pixels_per_iter;
+
+	hsync.shift_half_line = false;
+	vsync_lodd.sync_width = vm.vsync_len;
+	vsync_lodd.back_porch = vm.vback_porch;
+	vsync_lodd.front_porch = vm.vfront_porch;
+	vsync_lodd.shift_half_line = false;
+
+	if (vm.flags & DISPLAY_FLAGS_INTERLACED &&
+	    mode->flags & DRM_MODE_FLAG_3D_MASK) {
+		vsync_leven = vsync_lodd;
+		vsync_rodd = vsync_lodd;
+		vsync_reven = vsync_lodd;
+		vsync_leven.shift_half_line = true;
+		vsync_reven.shift_half_line = true;
+	} else if (vm.flags & DISPLAY_FLAGS_INTERLACED &&
+		   !(mode->flags & DRM_MODE_FLAG_3D_MASK)) {
+		vsync_leven = vsync_lodd;
+		vsync_leven.shift_half_line = true;
+	} else if (!(vm.flags & DISPLAY_FLAGS_INTERLACED) &&
+		   mode->flags & DRM_MODE_FLAG_3D_MASK) {
+		vsync_rodd = vsync_lodd;
+	}
+	mtk_dpi_sw_reset(dpi, true);
+	mtk_dpi_config_pol(dpi, &dpi_pol);
+
+	mtk_dpi_config_hsync(dpi, &hsync);
+	mtk_dpi_config_vsync_lodd(dpi, &vsync_lodd);
+	mtk_dpi_config_vsync_rodd(dpi, &vsync_rodd);
+	mtk_dpi_config_vsync_leven(dpi, &vsync_leven);
+	mtk_dpi_config_vsync_reven(dpi, &vsync_reven);
+
+	mtk_dpi_config_3d(dpi, !!(mode->flags & DRM_MODE_FLAG_3D_MASK));
+	mtk_dpi_config_interface(dpi, !!(vm.flags &
+					 DISPLAY_FLAGS_INTERLACED));
+	if (vm.flags & DISPLAY_FLAGS_INTERLACED)
+		mtk_dpi_config_fb_size(dpi, vm.hactive, vm.vactive >> 1);
+	else
+		mtk_dpi_config_fb_size(dpi, vm.hactive, vm.vactive);
+
+	mtk_dpi_config_channel_limit(dpi);
+	mtk_dpi_config_bit_num(dpi, dpi->bit_num);
+	mtk_dpi_config_channel_swap(dpi, dpi->channel_swap);
+	mtk_dpi_config_color_format(dpi, dpi->color_format);
+	if (dpi->conf->support_direct_pin) {
+		mtk_dpi_config_yc_map(dpi, dpi->yc_map);
+		mtk_dpi_config_2n_h_fre(dpi);
+		mtk_dpi_dual_edge(dpi);
+		mtk_dpi_config_disable_edge(dpi);
+	}
+	if (dpi->conf->input_2pixel) {
+		mtk_dpi_mask(dpi, DPI_CON, DPINTF_INPUT_2P_EN,
+			     DPINTF_INPUT_2P_EN);
+	}
+	mtk_dpi_sw_reset(dpi, false);
+
+	return 0;
+}
+
+static u32 *mtk_dpi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
+						      struct drm_bridge_state *bridge_state,
+						      struct drm_crtc_state *crtc_state,
+						      struct drm_connector_state *conn_state,
+						      unsigned int *num_output_fmts)
+{
+	struct mtk_dpi *dpi = bridge_to_dpi(bridge);
+	u32 *output_fmts;
+
+	*num_output_fmts = 0;
+
+	if (!dpi->conf->output_fmts) {
+		dev_err(dpi->dev, "output_fmts should not be null\n");
+		return NULL;
+	}
+
+	output_fmts = kcalloc(dpi->conf->num_output_fmts, sizeof(*output_fmts),
+			     GFP_KERNEL);
+	if (!output_fmts)
+		return NULL;
+
+	*num_output_fmts = dpi->conf->num_output_fmts;
+
+	memcpy(output_fmts, dpi->conf->output_fmts,
+	       sizeof(*output_fmts) * dpi->conf->num_output_fmts);
+
+	return output_fmts;
+}
+
+static u32 *mtk_dpi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
+						     struct drm_bridge_state *bridge_state,
+						     struct drm_crtc_state *crtc_state,
+						     struct drm_connector_state *conn_state,
+						     u32 output_fmt,
+						     unsigned int *num_input_fmts)
+{
+	u32 *input_fmts;
+
+	*num_input_fmts = 0;
+
+	input_fmts = kcalloc(1, sizeof(*input_fmts),
+			     GFP_KERNEL);
+	if (!input_fmts)
+		return NULL;
+
+	*num_input_fmts = 1;
+	input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24;
+
+	return input_fmts;
+}
+
+static int mtk_dpi_bridge_atomic_check(struct drm_bridge *bridge,
+				       struct drm_bridge_state *bridge_state,
+				       struct drm_crtc_state *crtc_state,
+				       struct drm_connector_state *conn_state)
+{
+	struct mtk_dpi *dpi = bridge_to_dpi(bridge);
+	unsigned int out_bus_format;
+
+	out_bus_format = bridge_state->output_bus_cfg.format;
+
+	if (out_bus_format == MEDIA_BUS_FMT_FIXED)
+		if (dpi->conf->num_output_fmts)
+			out_bus_format = dpi->conf->output_fmts[0];
+
+	dev_dbg(dpi->dev, "input format 0x%04x, output format 0x%04x\n",
+		bridge_state->input_bus_cfg.format,
+		bridge_state->output_bus_cfg.format);
+
+	dpi->output_fmt = out_bus_format;
+	dpi->bit_num = MTK_DPI_OUT_BIT_NUM_8BITS;
+	dpi->channel_swap = MTK_DPI_OUT_CHANNEL_SWAP_RGB;
+	dpi->yc_map = MTK_DPI_OUT_YC_MAP_RGB;
+	if (out_bus_format == MEDIA_BUS_FMT_YUYV8_1X16)
+		dpi->color_format = MTK_DPI_COLOR_FORMAT_YCBCR_422;
+	else
+		dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB;
+
+	return 0;
+}
+
+static int mtk_dpi_bridge_attach(struct drm_bridge *bridge,
+				 enum drm_bridge_attach_flags flags)
+{
+	struct mtk_dpi *dpi = bridge_to_dpi(bridge);
+
+	return drm_bridge_attach(bridge->encoder, dpi->next_bridge,
+				 &dpi->bridge, flags);
+}
+
+static void mtk_dpi_bridge_mode_set(struct drm_bridge *bridge,
+				const struct drm_display_mode *mode,
+				const struct drm_display_mode *adjusted_mode)
+{
+	struct mtk_dpi *dpi = bridge_to_dpi(bridge);
+
+	drm_mode_copy(&dpi->mode, adjusted_mode);
+}
+
+static void mtk_dpi_bridge_disable(struct drm_bridge *bridge)
+{
+	struct mtk_dpi *dpi = bridge_to_dpi(bridge);
+
+	mtk_dpi_power_off(dpi);
+
+	if (dpi->pinctrl && dpi->pins_gpio)
+		pinctrl_select_state(dpi->pinctrl, dpi->pins_gpio);
+}
+
+static void mtk_dpi_bridge_enable(struct drm_bridge *bridge)
+{
+	struct mtk_dpi *dpi = bridge_to_dpi(bridge);
+
+	if (dpi->pinctrl && dpi->pins_dpi)
+		pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi);
+
+	mtk_dpi_power_on(dpi);
+	mtk_dpi_set_display_mode(dpi, &dpi->mode);
+	mtk_dpi_enable(dpi);
+}
+
+static enum drm_mode_status
+mtk_dpi_bridge_mode_valid(struct drm_bridge *bridge,
+			  const struct drm_display_info *info,
+			  const struct drm_display_mode *mode)
+{
+	struct mtk_dpi *dpi = bridge_to_dpi(bridge);
+
+	if (mode->clock > dpi->conf->max_clock_khz)
+		return MODE_CLOCK_HIGH;
+
+	return MODE_OK;
+}
+
+static const struct drm_bridge_funcs mtk_dpi_bridge_funcs = {
+	.attach = mtk_dpi_bridge_attach,
+	.mode_set = mtk_dpi_bridge_mode_set,
+	.mode_valid = mtk_dpi_bridge_mode_valid,
+	.disable = mtk_dpi_bridge_disable,
+	.enable = mtk_dpi_bridge_enable,
+	.atomic_check = mtk_dpi_bridge_atomic_check,
+	.atomic_get_output_bus_fmts = mtk_dpi_bridge_atomic_get_output_bus_fmts,
+	.atomic_get_input_bus_fmts = mtk_dpi_bridge_atomic_get_input_bus_fmts,
+	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+	.atomic_reset = drm_atomic_helper_bridge_reset,
+};
+
+void mtk_dpi_start(struct device *dev)
+{
+	struct mtk_dpi *dpi = dev_get_drvdata(dev);
+
+	mtk_dpi_power_on(dpi);
+}
+
+void mtk_dpi_stop(struct device *dev)
+{
+	struct mtk_dpi *dpi = dev_get_drvdata(dev);
+
+	mtk_dpi_power_off(dpi);
+}
+
+static int mtk_dpi_bind(struct device *dev, struct device *master, void *data)
+{
+	struct mtk_dpi *dpi = dev_get_drvdata(dev);
+	struct drm_device *drm_dev = data;
+	int ret;
+
+	ret = drm_simple_encoder_init(drm_dev, &dpi->encoder,
+				      DRM_MODE_ENCODER_TMDS);
+	if (ret) {
+		dev_err(dev, "Failed to initialize decoder: %d\n", ret);
+		return ret;
+	}
+
+	dpi->encoder.possible_crtcs = mtk_drm_find_possible_crtc_by_comp(drm_dev, dpi->dev);
+
+	ret = drm_bridge_attach(&dpi->encoder, &dpi->bridge, NULL,
+				DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+	if (ret)
+		goto err_cleanup;
+
+	dpi->connector = drm_bridge_connector_init(drm_dev, &dpi->encoder);
+	if (IS_ERR(dpi->connector)) {
+		dev_err(dev, "Unable to create bridge connector\n");
+		ret = PTR_ERR(dpi->connector);
+		goto err_cleanup;
+	}
+	drm_connector_attach_encoder(dpi->connector, &dpi->encoder);
+
+	return 0;
+
+err_cleanup:
+	drm_encoder_cleanup(&dpi->encoder);
+	return ret;
+}
+
+static void mtk_dpi_unbind(struct device *dev, struct device *master,
+			   void *data)
+{
+	struct mtk_dpi *dpi = dev_get_drvdata(dev);
+
+	drm_encoder_cleanup(&dpi->encoder);
+}
+
+static const struct component_ops mtk_dpi_component_ops = {
+	.bind = mtk_dpi_bind,
+	.unbind = mtk_dpi_unbind,
+};
+
+static unsigned int mt8173_calculate_factor(int clock)
+{
+	if (clock <= 27000)
+		return 3 << 4;
+	else if (clock <= 84000)
+		return 3 << 3;
+	else if (clock <= 167000)
+		return 3 << 2;
+	else
+		return 3 << 1;
+}
+
+static unsigned int mt2701_calculate_factor(int clock)
+{
+	if (clock <= 64000)
+		return 4;
+	else if (clock <= 128000)
+		return 2;
+	else
+		return 1;
+}
+
+static unsigned int mt8183_calculate_factor(int clock)
+{
+	if (clock <= 27000)
+		return 8;
+	else if (clock <= 167000)
+		return 4;
+	else
+		return 2;
+}
+
+static unsigned int mt8195_dpintf_calculate_factor(int clock)
+{
+	if (clock < 70000)
+		return 4;
+	else if (clock < 200000)
+		return 2;
+	else
+		return 1;
+}
+
+static const u32 mt8173_output_fmts[] = {
+	MEDIA_BUS_FMT_RGB888_1X24,
+};
+
+static const u32 mt8183_output_fmts[] = {
+	MEDIA_BUS_FMT_RGB888_2X12_LE,
+	MEDIA_BUS_FMT_RGB888_2X12_BE,
+};
+
+static const u32 mt8195_output_fmts[] = {
+	MEDIA_BUS_FMT_RGB888_1X24,
+	MEDIA_BUS_FMT_YUYV8_1X16,
+};
+
+static const struct mtk_dpi_conf mt8173_conf = {
+	.cal_factor = mt8173_calculate_factor,
+	.reg_h_fre_con = 0xe0,
+	.max_clock_khz = 300000,
+	.output_fmts = mt8173_output_fmts,
+	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
+	.pixels_per_iter = 1,
+	.is_ck_de_pol = true,
+	.swap_input_support = true,
+	.support_direct_pin = true,
+	.dimension_mask = HPW_MASK,
+	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
+	.yuv422_en_bit = YUV422_EN,
+	.csc_enable_bit = CSC_ENABLE,
+};
+
+static const struct mtk_dpi_conf mt2701_conf = {
+	.cal_factor = mt2701_calculate_factor,
+	.reg_h_fre_con = 0xb0,
+	.edge_sel_en = true,
+	.max_clock_khz = 150000,
+	.output_fmts = mt8173_output_fmts,
+	.num_output_fmts = ARRAY_SIZE(mt8173_output_fmts),
+	.pixels_per_iter = 1,
+	.is_ck_de_pol = true,
+	.swap_input_support = true,
+	.support_direct_pin = true,
+	.dimension_mask = HPW_MASK,
+	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
+	.yuv422_en_bit = YUV422_EN,
+	.csc_enable_bit = CSC_ENABLE,
+};
+
+static const struct mtk_dpi_conf mt8183_conf = {
+	.cal_factor = mt8183_calculate_factor,
+	.reg_h_fre_con = 0xe0,
+	.max_clock_khz = 100000,
+	.output_fmts = mt8183_output_fmts,
+	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
+	.pixels_per_iter = 1,
+	.is_ck_de_pol = true,
+	.swap_input_support = true,
+	.support_direct_pin = true,
+	.dimension_mask = HPW_MASK,
+	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
+	.yuv422_en_bit = YUV422_EN,
+	.csc_enable_bit = CSC_ENABLE,
+};
+
+static const struct mtk_dpi_conf mt8192_conf = {
+	.cal_factor = mt8183_calculate_factor,
+	.reg_h_fre_con = 0xe0,
+	.max_clock_khz = 150000,
+	.output_fmts = mt8183_output_fmts,
+	.num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
+	.pixels_per_iter = 1,
+	.is_ck_de_pol = true,
+	.swap_input_support = true,
+	.support_direct_pin = true,
+	.dimension_mask = HPW_MASK,
+	.hvsize_mask = HSIZE_MASK,
+	.channel_swap_shift = CH_SWAP,
+	.yuv422_en_bit = YUV422_EN,
+	.csc_enable_bit = CSC_ENABLE,
+};
+
+static const struct mtk_dpi_conf mt8195_dpintf_conf = {
+	.cal_factor = mt8195_dpintf_calculate_factor,
+	.max_clock_khz = 600000,
+	.output_fmts = mt8195_output_fmts,
+	.num_output_fmts = ARRAY_SIZE(mt8195_output_fmts),
+	.pixels_per_iter = 4,
+	.input_2pixel = true,
+	.dimension_mask = DPINTF_HPW_MASK,
+	.hvsize_mask = DPINTF_HSIZE_MASK,
+	.channel_swap_shift = DPINTF_CH_SWAP,
+	.yuv422_en_bit = DPINTF_YUV422_EN,
+	.csc_enable_bit = DPINTF_CSC_ENABLE,
+};
+
+static int mtk_dpi_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_dpi *dpi;
+	struct resource *mem;
+	int ret;
+
+	dpi = devm_kzalloc(dev, sizeof(*dpi), GFP_KERNEL);
+	if (!dpi)
+		return -ENOMEM;
+
+	dpi->dev = dev;
+	dpi->conf = (struct mtk_dpi_conf *)of_device_get_match_data(dev);
+	dpi->output_fmt = MEDIA_BUS_FMT_RGB888_1X24;
+
+	dpi->pinctrl = devm_pinctrl_get(&pdev->dev);
+	if (IS_ERR(dpi->pinctrl)) {
+		dpi->pinctrl = NULL;
+		dev_dbg(&pdev->dev, "Cannot find pinctrl!\n");
+	}
+	if (dpi->pinctrl) {
+		dpi->pins_gpio = pinctrl_lookup_state(dpi->pinctrl, "sleep");
+		if (IS_ERR(dpi->pins_gpio)) {
+			dpi->pins_gpio = NULL;
+			dev_dbg(&pdev->dev, "Cannot find pinctrl idle!\n");
+		}
+		if (dpi->pins_gpio)
+			pinctrl_select_state(dpi->pinctrl, dpi->pins_gpio);
+
+		dpi->pins_dpi = pinctrl_lookup_state(dpi->pinctrl, "default");
+		if (IS_ERR(dpi->pins_dpi)) {
+			dpi->pins_dpi = NULL;
+			dev_dbg(&pdev->dev, "Cannot find pinctrl active!\n");
+		}
+	}
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dpi->regs = devm_ioremap_resource(dev, mem);
+	if (IS_ERR(dpi->regs)) {
+		ret = PTR_ERR(dpi->regs);
+		dev_err(dev, "Failed to ioremap mem resource: %d\n", ret);
+		return ret;
+	}
+
+	dpi->engine_clk = devm_clk_get(dev, "engine");
+	if (IS_ERR(dpi->engine_clk)) {
+		ret = PTR_ERR(dpi->engine_clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get engine clock: %d\n", ret);
+
+		return ret;
+	}
+
+	dpi->pixel_clk = devm_clk_get(dev, "pixel");
+	if (IS_ERR(dpi->pixel_clk)) {
+		ret = PTR_ERR(dpi->pixel_clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get pixel clock: %d\n", ret);
+
+		return ret;
+	}
+
+	dpi->tvd_clk = devm_clk_get(dev, "pll");
+	if (IS_ERR(dpi->tvd_clk)) {
+		ret = PTR_ERR(dpi->tvd_clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get tvdpll clock: %d\n", ret);
+
+		return ret;
+	}
+
+	dpi->irq = platform_get_irq(pdev, 0);
+	if (dpi->irq <= 0)
+		return -EINVAL;
+
+	ret = drm_of_find_panel_or_bridge(dev->of_node, 0, 0,
+					  NULL, &dpi->next_bridge);
+	if (ret)
+		return ret;
+
+	dev_info(dev, "Found bridge node: %pOF\n", dpi->next_bridge->of_node);
+
+	platform_set_drvdata(pdev, dpi);
+
+	dpi->bridge.funcs = &mtk_dpi_bridge_funcs;
+	dpi->bridge.of_node = dev->of_node;
+	dpi->bridge.type = DRM_MODE_CONNECTOR_DPI;
+
+	drm_bridge_add(&dpi->bridge);
+
+	ret = component_add(dev, &mtk_dpi_component_ops);
+	if (ret) {
+		drm_bridge_remove(&dpi->bridge);
+		dev_err(dev, "Failed to add component: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int mtk_dpi_remove(struct platform_device *pdev)
+{
+	struct mtk_dpi *dpi = platform_get_drvdata(pdev);
+
+	component_del(&pdev->dev, &mtk_dpi_component_ops);
+	drm_bridge_remove(&dpi->bridge);
+
+	return 0;
+}
+
+static const struct of_device_id mtk_dpi_of_ids[] = {
+	{ .compatible = "mediatek,mt2701-dpi",
+	  .data = &mt2701_conf,
+	},
+	{ .compatible = "mediatek,mt8173-dpi",
+	  .data = &mt8173_conf,
+	},
+	{ .compatible = "mediatek,mt8183-dpi",
+	  .data = &mt8183_conf,
+	},
+	{ .compatible = "mediatek,mt8192-dpi",
+	  .data = &mt8192_conf,
+	},
+	{ .compatible = "mediatek,mt8195-dp-intf",
+	  .data = &mt8195_dpintf_conf,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, mtk_dpi_of_ids);
+
+struct platform_driver mtk_dpi_driver = {
+	.probe = mtk_dpi_probe,
+	.remove = mtk_dpi_remove,
+	.driver = {
+		.name = "mediatek-dpi",
+		.of_match_table = mtk_dpi_of_ids,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
new file mode 100644
index 000000000..62bd4931b
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
@@ -0,0 +1,238 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+#ifndef __MTK_DPI_REGS_H
+#define __MTK_DPI_REGS_H
+
+#define DPI_EN			0x00
+#define EN				BIT(0)
+
+#define DPI_RET			0x04
+#define RST				BIT(0)
+
+#define DPI_INTEN		0x08
+#define INT_VSYNC_EN			BIT(0)
+#define INT_VDE_EN			BIT(1)
+#define INT_UNDERFLOW_EN		BIT(2)
+
+#define DPI_INTSTA		0x0C
+#define INT_VSYNC_STA			BIT(0)
+#define INT_VDE_STA			BIT(1)
+#define INT_UNDERFLOW_STA		BIT(2)
+
+#define DPI_CON			0x10
+#define BG_ENABLE			BIT(0)
+#define IN_RB_SWAP			BIT(1)
+#define INTL_EN				BIT(2)
+#define TDFP_EN				BIT(3)
+#define CLPF_EN				BIT(4)
+#define YUV422_EN			BIT(5)
+#define CSC_ENABLE			BIT(6)
+#define R601_SEL			BIT(7)
+#define EMBSYNC_EN			BIT(8)
+#define VS_LODD_EN			BIT(16)
+#define VS_LEVEN_EN			BIT(17)
+#define VS_RODD_EN			BIT(18)
+#define VS_REVEN			BIT(19)
+#define FAKE_DE_LODD			BIT(20)
+#define FAKE_DE_LEVEN			BIT(21)
+#define FAKE_DE_RODD			BIT(22)
+#define FAKE_DE_REVEN			BIT(23)
+#define DPINTF_YUV422_EN		BIT(24)
+#define DPINTF_CSC_ENABLE		BIT(26)
+#define DPINTF_INPUT_2P_EN		BIT(29)
+
+#define DPI_OUTPUT_SETTING	0x14
+#define CH_SWAP				0
+#define DPINTF_CH_SWAP			1
+#define CH_SWAP_MASK			(0x7 << 0)
+#define SWAP_RGB			0x00
+#define SWAP_GBR			0x01
+#define SWAP_BRG			0x02
+#define SWAP_RBG			0x03
+#define SWAP_GRB			0x04
+#define SWAP_BGR			0x05
+#define BIT_SWAP			BIT(3)
+#define B_MASK				BIT(4)
+#define G_MASK				BIT(5)
+#define R_MASK				BIT(6)
+#define DE_MASK				BIT(8)
+#define HS_MASK				BIT(9)
+#define VS_MASK				BIT(10)
+#define DE_POL				BIT(12)
+#define HSYNC_POL			BIT(13)
+#define VSYNC_POL			BIT(14)
+#define CK_POL				BIT(15)
+#define OEN_OFF				BIT(16)
+#define EDGE_SEL			BIT(17)
+#define OUT_BIT				18
+#define OUT_BIT_MASK			(0x3 << 18)
+#define OUT_BIT_8			0x00
+#define OUT_BIT_10			0x01
+#define OUT_BIT_12			0x02
+#define OUT_BIT_16			0x03
+#define YC_MAP				20
+#define YC_MAP_MASK			(0x7 << 20)
+#define YC_MAP_RGB			0x00
+#define YC_MAP_CYCY			0x04
+#define YC_MAP_YCYC			0x05
+#define YC_MAP_CY			0x06
+#define YC_MAP_YC			0x07
+
+#define DPI_SIZE		0x18
+#define HSIZE				0
+#define HSIZE_MASK			(0x1FFF << 0)
+#define DPINTF_HSIZE_MASK		(0xFFFF << 0)
+#define VSIZE				16
+#define VSIZE_MASK			(0x1FFF << 16)
+#define DPINTF_VSIZE_MASK		(0xFFFF << 16)
+
+#define DPI_DDR_SETTING		0x1C
+#define DDR_EN				BIT(0)
+#define DDDR_SEL			BIT(1)
+#define DDR_4PHASE			BIT(2)
+#define DDR_WIDTH			(0x3 << 4)
+#define DDR_PAD_MODE			(0x1 << 8)
+
+#define DPI_TGEN_HWIDTH		0x20
+#define HPW				0
+#define HPW_MASK			(0xFFF << 0)
+#define DPINTF_HPW_MASK			(0xFFFF << 0)
+
+#define DPI_TGEN_HPORCH		0x24
+#define HBP				0
+#define HBP_MASK			(0xFFF << 0)
+#define DPINTF_HBP_MASK			(0xFFFF << 0)
+#define HFP				16
+#define HFP_MASK			(0xFFF << 16)
+#define DPINTF_HFP_MASK			(0xFFFF << 16)
+
+#define DPI_TGEN_VWIDTH		0x28
+#define DPI_TGEN_VPORCH		0x2C
+
+#define VSYNC_WIDTH_SHIFT		0
+#define VSYNC_WIDTH_MASK		(0xFFF << 0)
+#define DPINTF_VSYNC_WIDTH_MASK		(0xFFFF << 0)
+#define VSYNC_HALF_LINE_SHIFT		16
+#define VSYNC_HALF_LINE_MASK		BIT(16)
+#define VSYNC_BACK_PORCH_SHIFT		0
+#define VSYNC_BACK_PORCH_MASK		(0xFFF << 0)
+#define DPINTF_VSYNC_BACK_PORCH_MASK	(0xFFFF << 0)
+#define VSYNC_FRONT_PORCH_SHIFT		16
+#define VSYNC_FRONT_PORCH_MASK		(0xFFF << 16)
+#define DPINTF_VSYNC_FRONT_PORCH_MASK	(0xFFFF << 16)
+
+#define DPI_BG_HCNTL		0x30
+#define BG_RIGHT			(0x1FFF << 0)
+#define BG_LEFT				(0x1FFF << 16)
+
+#define DPI_BG_VCNTL		0x34
+#define BG_BOT				(0x1FFF << 0)
+#define BG_TOP				(0x1FFF << 16)
+
+#define DPI_BG_COLOR		0x38
+#define BG_B				(0xF << 0)
+#define BG_G				(0xF << 8)
+#define BG_R				(0xF << 16)
+
+#define DPI_FIFO_CTL		0x3C
+#define FIFO_VALID_SET			(0x1F << 0)
+#define FIFO_RST_SEL			(0x1 << 8)
+
+#define DPI_STATUS		0x40
+#define VCOUNTER			(0x1FFF << 0)
+#define DPI_BUSY			BIT(16)
+#define OUTEN				BIT(17)
+#define FIELD				BIT(20)
+#define TDLR				BIT(21)
+
+#define DPI_TMODE		0x44
+#define DPI_OEN_ON			BIT(0)
+
+#define DPI_CHECKSUM		0x48
+#define DPI_CHECKSUM_MASK		(0xFFFFFF << 0)
+#define DPI_CHECKSUM_READY		BIT(30)
+#define DPI_CHECKSUM_EN			BIT(31)
+
+#define DPI_DUMMY		0x50
+#define DPI_DUMMY_MASK			(0xFFFFFFFF << 0)
+
+#define DPI_TGEN_VWIDTH_LEVEN	0x68
+#define DPI_TGEN_VPORCH_LEVEN	0x6C
+#define DPI_TGEN_VWIDTH_RODD	0x70
+#define DPI_TGEN_VPORCH_RODD	0x74
+#define DPI_TGEN_VWIDTH_REVEN	0x78
+#define DPI_TGEN_VPORCH_REVEN	0x7C
+
+#define DPI_ESAV_VTIMING_LODD	0x80
+#define ESAV_VOFST_LODD			(0xFFF << 0)
+#define ESAV_VWID_LODD			(0xFFF << 16)
+
+#define DPI_ESAV_VTIMING_LEVEN	0x84
+#define ESAV_VOFST_LEVEN		(0xFFF << 0)
+#define ESAV_VWID_LEVEN			(0xFFF << 16)
+
+#define DPI_ESAV_VTIMING_RODD	0x88
+#define ESAV_VOFST_RODD			(0xFFF << 0)
+#define ESAV_VWID_RODD			(0xFFF << 16)
+
+#define DPI_ESAV_VTIMING_REVEN	0x8C
+#define ESAV_VOFST_REVEN		(0xFFF << 0)
+#define ESAV_VWID_REVEN			(0xFFF << 16)
+
+#define DPI_ESAV_FTIMING	0x90
+#define ESAV_FOFST_ODD			(0xFFF << 0)
+#define ESAV_FOFST_EVEN			(0xFFF << 16)
+
+#define DPI_CLPF_SETTING	0x94
+#define CLPF_TYPE			(0x3 << 0)
+#define ROUND_EN			BIT(4)
+
+#define DPI_Y_LIMIT		0x98
+#define Y_LIMINT_BOT			0
+#define Y_LIMINT_BOT_MASK		(0xFFF << 0)
+#define Y_LIMINT_TOP			16
+#define Y_LIMINT_TOP_MASK		(0xFFF << 16)
+
+#define DPI_C_LIMIT		0x9C
+#define C_LIMIT_BOT			0
+#define C_LIMIT_BOT_MASK		(0xFFF << 0)
+#define C_LIMIT_TOP			16
+#define C_LIMIT_TOP_MASK		(0xFFF << 16)
+
+#define DPI_YUV422_SETTING	0xA0
+#define UV_SWAP				BIT(0)
+#define CR_DELSEL			BIT(4)
+#define CB_DELSEL			BIT(5)
+#define Y_DELSEL			BIT(6)
+#define DE_DELSEL			BIT(7)
+
+#define DPI_EMBSYNC_SETTING	0xA4
+#define EMBSYNC_R_CR_EN			BIT(0)
+#define EMPSYNC_G_Y_EN			BIT(1)
+#define EMPSYNC_B_CB_EN			BIT(2)
+#define ESAV_F_INV			BIT(4)
+#define ESAV_V_INV			BIT(5)
+#define ESAV_H_INV			BIT(6)
+#define ESAV_CODE_MAN			BIT(8)
+#define VS_OUT_SEL			(0x7 << 12)
+
+#define DPI_ESAV_CODE_SET0	0xA8
+#define ESAV_CODE0			(0xFFF << 0)
+#define ESAV_CODE1			(0xFFF << 16)
+
+#define DPI_ESAV_CODE_SET1	0xAC
+#define ESAV_CODE2			(0xFFF << 0)
+#define ESAV_CODE3_MSB			BIT(16)
+
+#define EDGE_SEL_EN			BIT(5)
+#define H_FRE_2N			BIT(25)
+
+#define DPI_MATRIX_SET		0xB4
+#define INT_MATRIX_SEL_MASK		GENMASK(4, 0)
+#define MATRIX_SEL_RGB_TO_JPEG		0
+#define MATRIX_SEL_RGB_TO_BT601		2
+
+#endif /* __MTK_DPI_REGS_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
new file mode 100644
index 000000000..558000db4
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -0,0 +1,1014 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/mailbox_controller.h>
+#include <linux/pm_runtime.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+#include <linux/soc/mediatek/mtk-mmsys.h>
+#include <linux/soc/mediatek/mtk-mutex.h>
+
+#include <asm/barrier.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "mtk_drm_drv.h"
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+#include "mtk_drm_gem.h"
+#include "mtk_drm_plane.h"
+
+/*
+ * struct mtk_drm_crtc - MediaTek specific crtc structure.
+ * @base: crtc object.
+ * @enabled: records whether crtc_enable succeeded
+ * @planes: array of 4 drm_plane structures, one for each overlay plane
+ * @pending_planes: whether any plane has pending changes to be applied
+ * @mmsys_dev: pointer to the mmsys device for configuration registers
+ * @mutex: handle to one of the ten disp_mutex streams
+ * @ddp_comp_nr: number of components in ddp_comp
+ * @ddp_comp: array of pointers the mtk_ddp_comp structures used by this crtc
+ *
+ * TODO: Needs update: this header is missing a bunch of member descriptions.
+ */
+struct mtk_drm_crtc {
+	struct drm_crtc			base;
+	bool				enabled;
+
+	bool				pending_needs_vblank;
+	struct drm_pending_vblank_event	*event;
+
+	struct drm_plane		*planes;
+	unsigned int			layer_nr;
+	bool				pending_planes;
+	bool				pending_async_planes;
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	struct cmdq_client		cmdq_client;
+	struct cmdq_pkt			cmdq_handle;
+	u32				cmdq_event;
+	u32				cmdq_vblank_cnt;
+	wait_queue_head_t		cb_blocking_queue;
+#endif
+
+	struct device			*mmsys_dev;
+	struct mtk_mutex		*mutex;
+	unsigned int			ddp_comp_nr;
+	struct mtk_ddp_comp		**ddp_comp;
+
+	/* lock for display hardware access */
+	struct mutex			hw_lock;
+	bool				config_updating;
+};
+
+struct mtk_crtc_state {
+	struct drm_crtc_state		base;
+
+	bool				pending_config;
+	unsigned int			pending_width;
+	unsigned int			pending_height;
+	unsigned int			pending_vrefresh;
+};
+
+static inline struct mtk_drm_crtc *to_mtk_crtc(struct drm_crtc *c)
+{
+	return container_of(c, struct mtk_drm_crtc, base);
+}
+
+static inline struct mtk_crtc_state *to_mtk_crtc_state(struct drm_crtc_state *s)
+{
+	return container_of(s, struct mtk_crtc_state, base);
+}
+
+static void mtk_drm_crtc_finish_page_flip(struct mtk_drm_crtc *mtk_crtc)
+{
+	struct drm_crtc *crtc = &mtk_crtc->base;
+	unsigned long flags;
+
+	spin_lock_irqsave(&crtc->dev->event_lock, flags);
+	drm_crtc_send_vblank_event(crtc, mtk_crtc->event);
+	drm_crtc_vblank_put(crtc);
+	mtk_crtc->event = NULL;
+	spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+}
+
+static void mtk_drm_finish_page_flip(struct mtk_drm_crtc *mtk_crtc)
+{
+	drm_crtc_handle_vblank(&mtk_crtc->base);
+	if (!mtk_crtc->config_updating && mtk_crtc->pending_needs_vblank) {
+		mtk_drm_crtc_finish_page_flip(mtk_crtc);
+		mtk_crtc->pending_needs_vblank = false;
+	}
+}
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+static int mtk_drm_cmdq_pkt_create(struct cmdq_client *client, struct cmdq_pkt *pkt,
+				   size_t size)
+{
+	struct device *dev;
+	dma_addr_t dma_addr;
+
+	pkt->va_base = kzalloc(size, GFP_KERNEL);
+	if (!pkt->va_base)
+		return -ENOMEM;
+
+	pkt->buf_size = size;
+	pkt->cl = (void *)client;
+
+	dev = client->chan->mbox->dev;
+	dma_addr = dma_map_single(dev, pkt->va_base, pkt->buf_size,
+				  DMA_TO_DEVICE);
+	if (dma_mapping_error(dev, dma_addr)) {
+		dev_err(dev, "dma map failed, size=%u\n", (u32)(u64)size);
+		kfree(pkt->va_base);
+		return -ENOMEM;
+	}
+
+	pkt->pa_base = dma_addr;
+
+	return 0;
+}
+
+static void mtk_drm_cmdq_pkt_destroy(struct cmdq_pkt *pkt)
+{
+	struct cmdq_client *client = (struct cmdq_client *)pkt->cl;
+
+	dma_unmap_single(client->chan->mbox->dev, pkt->pa_base, pkt->buf_size,
+			 DMA_TO_DEVICE);
+	kfree(pkt->va_base);
+}
+#endif
+
+static void mtk_drm_crtc_destroy(struct drm_crtc *crtc)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	int i;
+
+	mtk_mutex_put(mtk_crtc->mutex);
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	mtk_drm_cmdq_pkt_destroy(&mtk_crtc->cmdq_handle);
+
+	if (mtk_crtc->cmdq_client.chan) {
+		mbox_free_channel(mtk_crtc->cmdq_client.chan);
+		mtk_crtc->cmdq_client.chan = NULL;
+	}
+#endif
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+		struct mtk_ddp_comp *comp;
+
+		comp = mtk_crtc->ddp_comp[i];
+		mtk_ddp_comp_unregister_vblank_cb(comp);
+	}
+
+	drm_crtc_cleanup(crtc);
+}
+
+static void mtk_drm_crtc_reset(struct drm_crtc *crtc)
+{
+	struct mtk_crtc_state *state;
+
+	if (crtc->state)
+		__drm_atomic_helper_crtc_destroy_state(crtc->state);
+
+	kfree(to_mtk_crtc_state(crtc->state));
+	crtc->state = NULL;
+
+	state = kzalloc(sizeof(*state), GFP_KERNEL);
+	if (state)
+		__drm_atomic_helper_crtc_reset(crtc, &state->base);
+}
+
+static struct drm_crtc_state *mtk_drm_crtc_duplicate_state(struct drm_crtc *crtc)
+{
+	struct mtk_crtc_state *state;
+
+	state = kmalloc(sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return NULL;
+
+	__drm_atomic_helper_crtc_duplicate_state(crtc, &state->base);
+
+	WARN_ON(state->base.crtc != crtc);
+	state->base.crtc = crtc;
+	state->pending_config = false;
+
+	return &state->base;
+}
+
+static void mtk_drm_crtc_destroy_state(struct drm_crtc *crtc,
+				       struct drm_crtc_state *state)
+{
+	__drm_atomic_helper_crtc_destroy_state(state);
+	kfree(to_mtk_crtc_state(state));
+}
+
+static bool mtk_drm_crtc_mode_fixup(struct drm_crtc *crtc,
+				    const struct drm_display_mode *mode,
+				    struct drm_display_mode *adjusted_mode)
+{
+	/* Nothing to do here, but this callback is mandatory. */
+	return true;
+}
+
+static void mtk_drm_crtc_mode_set_nofb(struct drm_crtc *crtc)
+{
+	struct mtk_crtc_state *state = to_mtk_crtc_state(crtc->state);
+
+	state->pending_width = crtc->mode.hdisplay;
+	state->pending_height = crtc->mode.vdisplay;
+	state->pending_vrefresh = drm_mode_vrefresh(&crtc->mode);
+	wmb();	/* Make sure the above parameters are set before update */
+	state->pending_config = true;
+}
+
+static int mtk_crtc_ddp_clk_enable(struct mtk_drm_crtc *mtk_crtc)
+{
+	int ret;
+	int i;
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+		ret = mtk_ddp_comp_clk_enable(mtk_crtc->ddp_comp[i]);
+		if (ret) {
+			DRM_ERROR("Failed to enable clock %d: %d\n", i, ret);
+			goto err;
+		}
+	}
+
+	return 0;
+err:
+	while (--i >= 0)
+		mtk_ddp_comp_clk_disable(mtk_crtc->ddp_comp[i]);
+	return ret;
+}
+
+static void mtk_crtc_ddp_clk_disable(struct mtk_drm_crtc *mtk_crtc)
+{
+	int i;
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++)
+		mtk_ddp_comp_clk_disable(mtk_crtc->ddp_comp[i]);
+}
+
+static
+struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc,
+						struct drm_plane *plane,
+						unsigned int *local_layer)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	struct mtk_ddp_comp *comp;
+	int i, count = 0;
+	unsigned int local_index = plane - mtk_crtc->planes;
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+		comp = mtk_crtc->ddp_comp[i];
+		if (local_index < (count + mtk_ddp_comp_layer_nr(comp))) {
+			*local_layer = local_index - count;
+			return comp;
+		}
+		count += mtk_ddp_comp_layer_nr(comp);
+	}
+
+	WARN(1, "Failed to find component for plane %d\n", plane->index);
+	return NULL;
+}
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+static void ddp_cmdq_cb(struct mbox_client *cl, void *mssg)
+{
+	struct cmdq_cb_data *data = mssg;
+	struct cmdq_client *cmdq_cl = container_of(cl, struct cmdq_client, client);
+	struct mtk_drm_crtc *mtk_crtc = container_of(cmdq_cl, struct mtk_drm_crtc, cmdq_client);
+	struct mtk_crtc_state *state;
+	unsigned int i;
+
+	if (data->sta < 0)
+		return;
+
+	state = to_mtk_crtc_state(mtk_crtc->base.state);
+
+	state->pending_config = false;
+
+	if (mtk_crtc->pending_planes) {
+		for (i = 0; i < mtk_crtc->layer_nr; i++) {
+			struct drm_plane *plane = &mtk_crtc->planes[i];
+			struct mtk_plane_state *plane_state;
+
+			plane_state = to_mtk_plane_state(plane->state);
+
+			plane_state->pending.config = false;
+		}
+		mtk_crtc->pending_planes = false;
+	}
+
+	if (mtk_crtc->pending_async_planes) {
+		for (i = 0; i < mtk_crtc->layer_nr; i++) {
+			struct drm_plane *plane = &mtk_crtc->planes[i];
+			struct mtk_plane_state *plane_state;
+
+			plane_state = to_mtk_plane_state(plane->state);
+
+			plane_state->pending.async_config = false;
+		}
+		mtk_crtc->pending_async_planes = false;
+	}
+
+	mtk_crtc->cmdq_vblank_cnt = 0;
+	wake_up(&mtk_crtc->cb_blocking_queue);
+}
+#endif
+
+static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
+{
+	struct drm_crtc *crtc = &mtk_crtc->base;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+	struct drm_connector_list_iter conn_iter;
+	unsigned int width, height, vrefresh, bpc = MTK_MAX_BPC;
+	int ret;
+	int i;
+
+	if (WARN_ON(!crtc->state))
+		return -EINVAL;
+
+	width = crtc->state->adjusted_mode.hdisplay;
+	height = crtc->state->adjusted_mode.vdisplay;
+	vrefresh = drm_mode_vrefresh(&crtc->state->adjusted_mode);
+
+	drm_for_each_encoder(encoder, crtc->dev) {
+		if (encoder->crtc != crtc)
+			continue;
+
+		drm_connector_list_iter_begin(crtc->dev, &conn_iter);
+		drm_for_each_connector_iter(connector, &conn_iter) {
+			if (connector->encoder != encoder)
+				continue;
+			if (connector->display_info.bpc != 0 &&
+			    bpc > connector->display_info.bpc)
+				bpc = connector->display_info.bpc;
+		}
+		drm_connector_list_iter_end(&conn_iter);
+	}
+
+	ret = pm_runtime_resume_and_get(crtc->dev->dev);
+	if (ret < 0) {
+		DRM_ERROR("Failed to enable power domain: %d\n", ret);
+		return ret;
+	}
+
+	ret = mtk_mutex_prepare(mtk_crtc->mutex);
+	if (ret < 0) {
+		DRM_ERROR("Failed to enable mutex clock: %d\n", ret);
+		goto err_pm_runtime_put;
+	}
+
+	ret = mtk_crtc_ddp_clk_enable(mtk_crtc);
+	if (ret < 0) {
+		DRM_ERROR("Failed to enable component clocks: %d\n", ret);
+		goto err_mutex_unprepare;
+	}
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) {
+		mtk_mmsys_ddp_connect(mtk_crtc->mmsys_dev,
+				      mtk_crtc->ddp_comp[i]->id,
+				      mtk_crtc->ddp_comp[i + 1]->id);
+		mtk_mutex_add_comp(mtk_crtc->mutex,
+					mtk_crtc->ddp_comp[i]->id);
+	}
+	mtk_mutex_add_comp(mtk_crtc->mutex, mtk_crtc->ddp_comp[i]->id);
+	mtk_mutex_enable(mtk_crtc->mutex);
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+		struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[i];
+
+		if (i == 1)
+			mtk_ddp_comp_bgclr_in_on(comp);
+
+		mtk_ddp_comp_config(comp, width, height, vrefresh, bpc, NULL);
+		mtk_ddp_comp_start(comp);
+	}
+
+	/* Initially configure all planes */
+	for (i = 0; i < mtk_crtc->layer_nr; i++) {
+		struct drm_plane *plane = &mtk_crtc->planes[i];
+		struct mtk_plane_state *plane_state;
+		struct mtk_ddp_comp *comp;
+		unsigned int local_layer;
+
+		plane_state = to_mtk_plane_state(plane->state);
+
+		/* should not enable layer before crtc enabled */
+		plane_state->pending.enable = false;
+		comp = mtk_drm_ddp_comp_for_plane(crtc, plane, &local_layer);
+		if (comp)
+			mtk_ddp_comp_layer_config(comp, local_layer,
+						  plane_state, NULL);
+	}
+
+	return 0;
+
+err_mutex_unprepare:
+	mtk_mutex_unprepare(mtk_crtc->mutex);
+err_pm_runtime_put:
+	pm_runtime_put(crtc->dev->dev);
+	return ret;
+}
+
+static void mtk_crtc_ddp_hw_fini(struct mtk_drm_crtc *mtk_crtc)
+{
+	struct drm_device *drm = mtk_crtc->base.dev;
+	struct drm_crtc *crtc = &mtk_crtc->base;
+	int i;
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+		mtk_ddp_comp_stop(mtk_crtc->ddp_comp[i]);
+		if (i == 1)
+			mtk_ddp_comp_bgclr_in_off(mtk_crtc->ddp_comp[i]);
+	}
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++)
+		mtk_mutex_remove_comp(mtk_crtc->mutex,
+					   mtk_crtc->ddp_comp[i]->id);
+	mtk_mutex_disable(mtk_crtc->mutex);
+	for (i = 0; i < mtk_crtc->ddp_comp_nr - 1; i++) {
+		mtk_mmsys_ddp_disconnect(mtk_crtc->mmsys_dev,
+					 mtk_crtc->ddp_comp[i]->id,
+					 mtk_crtc->ddp_comp[i + 1]->id);
+		mtk_mutex_remove_comp(mtk_crtc->mutex,
+					   mtk_crtc->ddp_comp[i]->id);
+	}
+	mtk_mutex_remove_comp(mtk_crtc->mutex, mtk_crtc->ddp_comp[i]->id);
+	mtk_crtc_ddp_clk_disable(mtk_crtc);
+	mtk_mutex_unprepare(mtk_crtc->mutex);
+
+	pm_runtime_put(drm->dev);
+
+	if (crtc->state->event && !crtc->state->active) {
+		spin_lock_irq(&crtc->dev->event_lock);
+		drm_crtc_send_vblank_event(crtc, crtc->state->event);
+		crtc->state->event = NULL;
+		spin_unlock_irq(&crtc->dev->event_lock);
+	}
+}
+
+static void mtk_crtc_ddp_config(struct drm_crtc *crtc,
+				struct cmdq_pkt *cmdq_handle)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	struct mtk_crtc_state *state = to_mtk_crtc_state(mtk_crtc->base.state);
+	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
+	unsigned int i;
+	unsigned int local_layer;
+
+	/*
+	 * TODO: instead of updating the registers here, we should prepare
+	 * working registers in atomic_commit and let the hardware command
+	 * queue update module registers on vblank.
+	 */
+	if (state->pending_config) {
+		mtk_ddp_comp_config(comp, state->pending_width,
+				    state->pending_height,
+				    state->pending_vrefresh, 0,
+				    cmdq_handle);
+
+		if (!cmdq_handle)
+			state->pending_config = false;
+	}
+
+	if (mtk_crtc->pending_planes) {
+		for (i = 0; i < mtk_crtc->layer_nr; i++) {
+			struct drm_plane *plane = &mtk_crtc->planes[i];
+			struct mtk_plane_state *plane_state;
+
+			plane_state = to_mtk_plane_state(plane->state);
+
+			if (!plane_state->pending.config)
+				continue;
+
+			comp = mtk_drm_ddp_comp_for_plane(crtc, plane,
+							  &local_layer);
+
+			if (comp)
+				mtk_ddp_comp_layer_config(comp, local_layer,
+							  plane_state,
+							  cmdq_handle);
+			if (!cmdq_handle)
+				plane_state->pending.config = false;
+		}
+
+		if (!cmdq_handle)
+			mtk_crtc->pending_planes = false;
+	}
+
+	if (mtk_crtc->pending_async_planes) {
+		for (i = 0; i < mtk_crtc->layer_nr; i++) {
+			struct drm_plane *plane = &mtk_crtc->planes[i];
+			struct mtk_plane_state *plane_state;
+
+			plane_state = to_mtk_plane_state(plane->state);
+
+			if (!plane_state->pending.async_config)
+				continue;
+
+			comp = mtk_drm_ddp_comp_for_plane(crtc, plane,
+							  &local_layer);
+
+			if (comp)
+				mtk_ddp_comp_layer_config(comp, local_layer,
+							  plane_state,
+							  cmdq_handle);
+			if (!cmdq_handle)
+				plane_state->pending.async_config = false;
+		}
+
+		if (!cmdq_handle)
+			mtk_crtc->pending_async_planes = false;
+	}
+}
+
+static void mtk_drm_crtc_update_config(struct mtk_drm_crtc *mtk_crtc,
+				       bool needs_vblank)
+{
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	struct cmdq_pkt *cmdq_handle = &mtk_crtc->cmdq_handle;
+#endif
+	struct drm_crtc *crtc = &mtk_crtc->base;
+	struct mtk_drm_private *priv = crtc->dev->dev_private;
+	unsigned int pending_planes = 0, pending_async_planes = 0;
+	int i;
+
+	mutex_lock(&mtk_crtc->hw_lock);
+	mtk_crtc->config_updating = true;
+	if (needs_vblank)
+		mtk_crtc->pending_needs_vblank = true;
+
+	for (i = 0; i < mtk_crtc->layer_nr; i++) {
+		struct drm_plane *plane = &mtk_crtc->planes[i];
+		struct mtk_plane_state *plane_state;
+
+		plane_state = to_mtk_plane_state(plane->state);
+		if (plane_state->pending.dirty) {
+			plane_state->pending.config = true;
+			plane_state->pending.dirty = false;
+			pending_planes |= BIT(i);
+		} else if (plane_state->pending.async_dirty) {
+			plane_state->pending.async_config = true;
+			plane_state->pending.async_dirty = false;
+			pending_async_planes |= BIT(i);
+		}
+	}
+	if (pending_planes)
+		mtk_crtc->pending_planes = true;
+	if (pending_async_planes)
+		mtk_crtc->pending_async_planes = true;
+
+	if (priv->data->shadow_register) {
+		mtk_mutex_acquire(mtk_crtc->mutex);
+		mtk_crtc_ddp_config(crtc, NULL);
+		mtk_mutex_release(mtk_crtc->mutex);
+	}
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	if (mtk_crtc->cmdq_client.chan) {
+		mbox_flush(mtk_crtc->cmdq_client.chan, 2000);
+		cmdq_handle->cmd_buf_size = 0;
+		cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event);
+		cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, false);
+		mtk_crtc_ddp_config(crtc, cmdq_handle);
+		cmdq_pkt_finalize(cmdq_handle);
+		dma_sync_single_for_device(mtk_crtc->cmdq_client.chan->mbox->dev,
+					   cmdq_handle->pa_base,
+					   cmdq_handle->cmd_buf_size,
+					   DMA_TO_DEVICE);
+		/*
+		 * CMDQ command should execute in next 3 vblank.
+		 * One vblank interrupt before send message (occasionally)
+		 * and one vblank interrupt after cmdq done,
+		 * so it's timeout after 3 vblank interrupt.
+		 * If it fail to execute in next 3 vblank, timeout happen.
+		 */
+		mtk_crtc->cmdq_vblank_cnt = 3;
+
+		mbox_send_message(mtk_crtc->cmdq_client.chan, cmdq_handle);
+		mbox_client_txdone(mtk_crtc->cmdq_client.chan, 0);
+	}
+#endif
+	mtk_crtc->config_updating = false;
+	mutex_unlock(&mtk_crtc->hw_lock);
+}
+
+static void mtk_crtc_ddp_irq(void *data)
+{
+	struct drm_crtc *crtc = data;
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	struct mtk_drm_private *priv = crtc->dev->dev_private;
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	if (!priv->data->shadow_register && !mtk_crtc->cmdq_client.chan)
+		mtk_crtc_ddp_config(crtc, NULL);
+	else if (mtk_crtc->cmdq_vblank_cnt > 0 && --mtk_crtc->cmdq_vblank_cnt == 0)
+		DRM_ERROR("mtk_crtc %d CMDQ execute command timeout!\n",
+			  drm_crtc_index(&mtk_crtc->base));
+#else
+	if (!priv->data->shadow_register)
+		mtk_crtc_ddp_config(crtc, NULL);
+#endif
+	mtk_drm_finish_page_flip(mtk_crtc);
+}
+
+static int mtk_drm_crtc_enable_vblank(struct drm_crtc *crtc)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
+
+	mtk_ddp_comp_enable_vblank(comp);
+
+	return 0;
+}
+
+static void mtk_drm_crtc_disable_vblank(struct drm_crtc *crtc)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
+
+	mtk_ddp_comp_disable_vblank(comp);
+}
+
+int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane,
+			     struct mtk_plane_state *state)
+{
+	unsigned int local_layer;
+	struct mtk_ddp_comp *comp;
+
+	comp = mtk_drm_ddp_comp_for_plane(crtc, plane, &local_layer);
+	if (comp)
+		return mtk_ddp_comp_layer_check(comp, local_layer, state);
+	return 0;
+}
+
+void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane,
+			       struct drm_atomic_state *state)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+
+	if (!mtk_crtc->enabled)
+		return;
+
+	mtk_drm_crtc_update_config(mtk_crtc, false);
+}
+
+static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,
+				       struct drm_atomic_state *state)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
+	int ret;
+
+	DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id);
+
+	ret = pm_runtime_resume_and_get(comp->dev);
+	if (ret < 0) {
+		DRM_DEV_ERROR(comp->dev, "Failed to enable power domain: %d\n", ret);
+		return;
+	}
+
+	ret = mtk_crtc_ddp_hw_init(mtk_crtc);
+	if (ret) {
+		pm_runtime_put(comp->dev);
+		return;
+	}
+
+	drm_crtc_vblank_on(crtc);
+	mtk_crtc->enabled = true;
+}
+
+static void mtk_drm_crtc_atomic_disable(struct drm_crtc *crtc,
+					struct drm_atomic_state *state)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[0];
+	int i, ret;
+
+	DRM_DEBUG_DRIVER("%s %d\n", __func__, crtc->base.id);
+	if (!mtk_crtc->enabled)
+		return;
+
+	/* Set all pending plane state to disabled */
+	for (i = 0; i < mtk_crtc->layer_nr; i++) {
+		struct drm_plane *plane = &mtk_crtc->planes[i];
+		struct mtk_plane_state *plane_state;
+
+		plane_state = to_mtk_plane_state(plane->state);
+		plane_state->pending.enable = false;
+		plane_state->pending.config = true;
+	}
+	mtk_crtc->pending_planes = true;
+
+	mtk_drm_crtc_update_config(mtk_crtc, false);
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	/* Wait for planes to be disabled by cmdq */
+	if (mtk_crtc->cmdq_client.chan)
+		wait_event_timeout(mtk_crtc->cb_blocking_queue,
+				   mtk_crtc->cmdq_vblank_cnt == 0,
+				   msecs_to_jiffies(500));
+#endif
+	/* Wait for planes to be disabled */
+	drm_crtc_wait_one_vblank(crtc);
+
+	drm_crtc_vblank_off(crtc);
+	mtk_crtc_ddp_hw_fini(mtk_crtc);
+	ret = pm_runtime_put(comp->dev);
+	if (ret < 0)
+		DRM_DEV_ERROR(comp->dev, "Failed to disable power domain: %d\n", ret);
+
+	mtk_crtc->enabled = false;
+}
+
+static void mtk_drm_crtc_atomic_begin(struct drm_crtc *crtc,
+				      struct drm_atomic_state *state)
+{
+	struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state,
+									  crtc);
+	struct mtk_crtc_state *mtk_crtc_state = to_mtk_crtc_state(crtc_state);
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	unsigned long flags;
+
+	if (mtk_crtc->event && mtk_crtc_state->base.event)
+		DRM_ERROR("new event while there is still a pending event\n");
+
+	if (mtk_crtc_state->base.event) {
+		mtk_crtc_state->base.event->pipe = drm_crtc_index(crtc);
+		WARN_ON(drm_crtc_vblank_get(crtc) != 0);
+
+		spin_lock_irqsave(&crtc->dev->event_lock, flags);
+		mtk_crtc->event = mtk_crtc_state->base.event;
+		spin_unlock_irqrestore(&crtc->dev->event_lock, flags);
+
+		mtk_crtc_state->base.event = NULL;
+	}
+}
+
+static void mtk_drm_crtc_atomic_flush(struct drm_crtc *crtc,
+				      struct drm_atomic_state *state)
+{
+	struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
+	int i;
+
+	if (crtc->state->color_mgmt_changed)
+		for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+			mtk_ddp_gamma_set(mtk_crtc->ddp_comp[i], crtc->state);
+			mtk_ddp_ctm_set(mtk_crtc->ddp_comp[i], crtc->state);
+		}
+	mtk_drm_crtc_update_config(mtk_crtc, !!mtk_crtc->event);
+}
+
+static const struct drm_crtc_funcs mtk_crtc_funcs = {
+	.set_config		= drm_atomic_helper_set_config,
+	.page_flip		= drm_atomic_helper_page_flip,
+	.destroy		= mtk_drm_crtc_destroy,
+	.reset			= mtk_drm_crtc_reset,
+	.atomic_duplicate_state	= mtk_drm_crtc_duplicate_state,
+	.atomic_destroy_state	= mtk_drm_crtc_destroy_state,
+	.enable_vblank		= mtk_drm_crtc_enable_vblank,
+	.disable_vblank		= mtk_drm_crtc_disable_vblank,
+};
+
+static const struct drm_crtc_helper_funcs mtk_crtc_helper_funcs = {
+	.mode_fixup	= mtk_drm_crtc_mode_fixup,
+	.mode_set_nofb	= mtk_drm_crtc_mode_set_nofb,
+	.atomic_begin	= mtk_drm_crtc_atomic_begin,
+	.atomic_flush	= mtk_drm_crtc_atomic_flush,
+	.atomic_enable	= mtk_drm_crtc_atomic_enable,
+	.atomic_disable	= mtk_drm_crtc_atomic_disable,
+};
+
+static int mtk_drm_crtc_init(struct drm_device *drm,
+			     struct mtk_drm_crtc *mtk_crtc,
+			     unsigned int pipe)
+{
+	struct drm_plane *primary = NULL;
+	struct drm_plane *cursor = NULL;
+	int i, ret;
+
+	for (i = 0; i < mtk_crtc->layer_nr; i++) {
+		if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_PRIMARY)
+			primary = &mtk_crtc->planes[i];
+		else if (mtk_crtc->planes[i].type == DRM_PLANE_TYPE_CURSOR)
+			cursor = &mtk_crtc->planes[i];
+	}
+
+	ret = drm_crtc_init_with_planes(drm, &mtk_crtc->base, primary, cursor,
+					&mtk_crtc_funcs, NULL);
+	if (ret)
+		goto err_cleanup_crtc;
+
+	drm_crtc_helper_add(&mtk_crtc->base, &mtk_crtc_helper_funcs);
+
+	return 0;
+
+err_cleanup_crtc:
+	drm_crtc_cleanup(&mtk_crtc->base);
+	return ret;
+}
+
+static int mtk_drm_crtc_num_comp_planes(struct mtk_drm_crtc *mtk_crtc,
+					int comp_idx)
+{
+	struct mtk_ddp_comp *comp;
+
+	if (comp_idx > 1)
+		return 0;
+
+	comp = mtk_crtc->ddp_comp[comp_idx];
+	if (!comp->funcs)
+		return 0;
+
+	if (comp_idx == 1 && !comp->funcs->bgclr_in_on)
+		return 0;
+
+	return mtk_ddp_comp_layer_nr(comp);
+}
+
+static inline
+enum drm_plane_type mtk_drm_crtc_plane_type(unsigned int plane_idx,
+					    unsigned int num_planes)
+{
+	if (plane_idx == 0)
+		return DRM_PLANE_TYPE_PRIMARY;
+	else if (plane_idx == (num_planes - 1))
+		return DRM_PLANE_TYPE_CURSOR;
+	else
+		return DRM_PLANE_TYPE_OVERLAY;
+
+}
+
+static int mtk_drm_crtc_init_comp_planes(struct drm_device *drm_dev,
+					 struct mtk_drm_crtc *mtk_crtc,
+					 int comp_idx, int pipe)
+{
+	int num_planes = mtk_drm_crtc_num_comp_planes(mtk_crtc, comp_idx);
+	struct mtk_ddp_comp *comp = mtk_crtc->ddp_comp[comp_idx];
+	int i, ret;
+
+	for (i = 0; i < num_planes; i++) {
+		ret = mtk_plane_init(drm_dev,
+				&mtk_crtc->planes[mtk_crtc->layer_nr],
+				BIT(pipe),
+				mtk_drm_crtc_plane_type(mtk_crtc->layer_nr,
+							num_planes),
+				mtk_ddp_comp_supported_rotations(comp));
+		if (ret)
+			return ret;
+
+		mtk_crtc->layer_nr++;
+	}
+	return 0;
+}
+
+int mtk_drm_crtc_create(struct drm_device *drm_dev,
+			const enum mtk_ddp_comp_id *path, unsigned int path_len)
+{
+	struct mtk_drm_private *priv = drm_dev->dev_private;
+	struct device *dev = drm_dev->dev;
+	struct mtk_drm_crtc *mtk_crtc;
+	unsigned int num_comp_planes = 0;
+	int pipe = priv->num_pipes;
+	int ret;
+	int i;
+	bool has_ctm = false;
+	uint gamma_lut_size = 0;
+
+	if (!path)
+		return 0;
+
+	for (i = 0; i < path_len; i++) {
+		enum mtk_ddp_comp_id comp_id = path[i];
+		struct device_node *node;
+		struct mtk_ddp_comp *comp;
+
+		node = priv->comp_node[comp_id];
+		comp = &priv->ddp_comp[comp_id];
+
+		if (!node) {
+			dev_info(dev,
+				 "Not creating crtc %d because component %d is disabled or missing\n",
+				 pipe, comp_id);
+			return 0;
+		}
+
+		if (!comp->dev) {
+			dev_err(dev, "Component %pOF not initialized\n", node);
+			return -ENODEV;
+		}
+	}
+
+	mtk_crtc = devm_kzalloc(dev, sizeof(*mtk_crtc), GFP_KERNEL);
+	if (!mtk_crtc)
+		return -ENOMEM;
+
+	mtk_crtc->mmsys_dev = priv->mmsys_dev;
+	mtk_crtc->ddp_comp_nr = path_len;
+	mtk_crtc->ddp_comp = devm_kmalloc_array(dev, mtk_crtc->ddp_comp_nr,
+						sizeof(*mtk_crtc->ddp_comp),
+						GFP_KERNEL);
+	if (!mtk_crtc->ddp_comp)
+		return -ENOMEM;
+
+	mtk_crtc->mutex = mtk_mutex_get(priv->mutex_dev);
+	if (IS_ERR(mtk_crtc->mutex)) {
+		ret = PTR_ERR(mtk_crtc->mutex);
+		dev_err(dev, "Failed to get mutex: %d\n", ret);
+		return ret;
+	}
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+		enum mtk_ddp_comp_id comp_id = path[i];
+		struct mtk_ddp_comp *comp;
+
+		comp = &priv->ddp_comp[comp_id];
+		mtk_crtc->ddp_comp[i] = comp;
+
+		if (comp->funcs) {
+			if (comp->funcs->gamma_set)
+				gamma_lut_size = MTK_LUT_SIZE;
+
+			if (comp->funcs->ctm_set)
+				has_ctm = true;
+		}
+
+		mtk_ddp_comp_register_vblank_cb(comp, mtk_crtc_ddp_irq,
+						&mtk_crtc->base);
+	}
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++)
+		num_comp_planes += mtk_drm_crtc_num_comp_planes(mtk_crtc, i);
+
+	mtk_crtc->planes = devm_kcalloc(dev, num_comp_planes,
+					sizeof(struct drm_plane), GFP_KERNEL);
+	if (!mtk_crtc->planes)
+		return -ENOMEM;
+
+	for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
+		ret = mtk_drm_crtc_init_comp_planes(drm_dev, mtk_crtc, i,
+						    pipe);
+		if (ret)
+			return ret;
+	}
+
+	ret = mtk_drm_crtc_init(drm_dev, mtk_crtc, pipe);
+	if (ret < 0)
+		return ret;
+
+	if (gamma_lut_size)
+		drm_mode_crtc_set_gamma_size(&mtk_crtc->base, gamma_lut_size);
+	drm_crtc_enable_color_mgmt(&mtk_crtc->base, 0, has_ctm, gamma_lut_size);
+	priv->num_pipes++;
+	mutex_init(&mtk_crtc->hw_lock);
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	mtk_crtc->cmdq_client.client.dev = mtk_crtc->mmsys_dev;
+	mtk_crtc->cmdq_client.client.tx_block = false;
+	mtk_crtc->cmdq_client.client.knows_txdone = true;
+	mtk_crtc->cmdq_client.client.rx_callback = ddp_cmdq_cb;
+	mtk_crtc->cmdq_client.chan =
+			mbox_request_channel(&mtk_crtc->cmdq_client.client,
+					     drm_crtc_index(&mtk_crtc->base));
+	if (IS_ERR(mtk_crtc->cmdq_client.chan)) {
+		dev_dbg(dev, "mtk_crtc %d failed to create mailbox client, writing register by CPU now\n",
+			drm_crtc_index(&mtk_crtc->base));
+		mtk_crtc->cmdq_client.chan = NULL;
+	}
+
+	if (mtk_crtc->cmdq_client.chan) {
+		ret = of_property_read_u32_index(priv->mutex_node,
+						 "mediatek,gce-events",
+						 drm_crtc_index(&mtk_crtc->base),
+						 &mtk_crtc->cmdq_event);
+		if (ret) {
+			dev_dbg(dev, "mtk_crtc %d failed to get mediatek,gce-events property\n",
+				drm_crtc_index(&mtk_crtc->base));
+			mbox_free_channel(mtk_crtc->cmdq_client.chan);
+			mtk_crtc->cmdq_client.chan = NULL;
+		} else {
+			ret = mtk_drm_cmdq_pkt_create(&mtk_crtc->cmdq_client,
+						      &mtk_crtc->cmdq_handle,
+						      PAGE_SIZE);
+			if (ret) {
+				dev_dbg(dev, "mtk_crtc %d failed to create cmdq packet\n",
+					drm_crtc_index(&mtk_crtc->base));
+				mbox_free_channel(mtk_crtc->cmdq_client.chan);
+				mtk_crtc->cmdq_client.chan = NULL;
+			}
+		}
+
+		/* for sending blocking cmd in crtc disable */
+		init_waitqueue_head(&mtk_crtc->cb_blocking_queue);
+	}
+#endif
+	return 0;
+}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.h b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
new file mode 100644
index 000000000..cb9a36c48
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#ifndef MTK_DRM_CRTC_H
+#define MTK_DRM_CRTC_H
+
+#include <drm/drm_crtc.h>
+#include "mtk_drm_ddp_comp.h"
+#include "mtk_drm_plane.h"
+
+#define MTK_LUT_SIZE	512
+#define MTK_MAX_BPC	10
+#define MTK_MIN_BPC	3
+
+void mtk_drm_crtc_commit(struct drm_crtc *crtc);
+int mtk_drm_crtc_create(struct drm_device *drm_dev,
+			const enum mtk_ddp_comp_id *path,
+			unsigned int path_len);
+int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane,
+			     struct mtk_plane_state *state);
+void mtk_drm_crtc_async_update(struct drm_crtc *crtc, struct drm_plane *plane,
+			       struct drm_atomic_state *plane_state);
+
+#endif /* MTK_DRM_CRTC_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
new file mode 100644
index 000000000..6b6d5335c
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -0,0 +1,576 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Authors:
+ *	YT Shen <yt.shen@mediatek.com>
+ *	CK Hu <ck.hu@mediatek.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+#include <drm/drm_print.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_drv.h"
+#include "mtk_drm_plane.h"
+#include "mtk_drm_ddp_comp.h"
+#include "mtk_drm_crtc.h"
+
+
+#define DISP_REG_DITHER_EN			0x0000
+#define DITHER_EN				BIT(0)
+#define DISP_REG_DITHER_CFG			0x0020
+#define DITHER_RELAY_MODE			BIT(0)
+#define DITHER_ENGINE_EN			BIT(1)
+#define DISP_DITHERING				BIT(2)
+#define DISP_REG_DITHER_SIZE			0x0030
+#define DISP_REG_DITHER_5			0x0114
+#define DISP_REG_DITHER_7			0x011c
+#define DISP_REG_DITHER_15			0x013c
+#define DITHER_LSB_ERR_SHIFT_R(x)		(((x) & 0x7) << 28)
+#define DITHER_ADD_LSHIFT_R(x)			(((x) & 0x7) << 20)
+#define DITHER_NEW_BIT_MODE			BIT(0)
+#define DISP_REG_DITHER_16			0x0140
+#define DITHER_LSB_ERR_SHIFT_B(x)		(((x) & 0x7) << 28)
+#define DITHER_ADD_LSHIFT_B(x)			(((x) & 0x7) << 20)
+#define DITHER_LSB_ERR_SHIFT_G(x)		(((x) & 0x7) << 12)
+#define DITHER_ADD_LSHIFT_G(x)			(((x) & 0x7) << 4)
+
+#define DISP_REG_DSC_CON			0x0000
+#define DSC_EN					BIT(0)
+#define DSC_DUAL_INOUT				BIT(2)
+#define DSC_BYPASS				BIT(4)
+#define DSC_UFOE_SEL				BIT(16)
+
+#define DISP_REG_OD_EN				0x0000
+#define DISP_REG_OD_CFG				0x0020
+#define OD_RELAYMODE				BIT(0)
+#define DISP_REG_OD_SIZE			0x0030
+
+#define DISP_REG_POSTMASK_EN			0x0000
+#define POSTMASK_EN					BIT(0)
+#define DISP_REG_POSTMASK_CFG			0x0020
+#define POSTMASK_RELAY_MODE				BIT(0)
+#define DISP_REG_POSTMASK_SIZE			0x0030
+
+#define DISP_REG_UFO_START			0x0000
+#define UFO_BYPASS				BIT(2)
+
+struct mtk_ddp_comp_dev {
+	struct clk *clk;
+	void __iomem *regs;
+	struct cmdq_client_reg cmdq_reg;
+};
+
+void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+		   struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
+		   unsigned int offset)
+{
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	if (cmdq_pkt)
+		cmdq_pkt_write(cmdq_pkt, cmdq_reg->subsys,
+			       cmdq_reg->offset + offset, value);
+	else
+#endif
+		writel(value, regs + offset);
+}
+
+void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+			   struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
+			   unsigned int offset)
+{
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	if (cmdq_pkt)
+		cmdq_pkt_write(cmdq_pkt, cmdq_reg->subsys,
+			       cmdq_reg->offset + offset, value);
+	else
+#endif
+		writel_relaxed(value, regs + offset);
+}
+
+void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+			struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
+			unsigned int offset, unsigned int mask)
+{
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	if (cmdq_pkt) {
+		cmdq_pkt_write_mask(cmdq_pkt, cmdq_reg->subsys,
+				    cmdq_reg->offset + offset, value, mask);
+	} else {
+#endif
+		u32 tmp = readl(regs + offset);
+
+		tmp = (tmp & ~mask) | (value & mask);
+		writel(tmp, regs + offset);
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	}
+#endif
+}
+
+static int mtk_ddp_clk_enable(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(priv->clk);
+}
+
+static void mtk_ddp_clk_disable(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(priv->clk);
+}
+
+void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg,
+			   unsigned int bpc, unsigned int cfg,
+			   unsigned int dither_en, struct cmdq_pkt *cmdq_pkt)
+{
+	/* If bpc equal to 0, the dithering function didn't be enabled */
+	if (bpc == 0)
+		return;
+
+	if (bpc >= MTK_MIN_BPC) {
+		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_REG_DITHER_5);
+		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_REG_DITHER_7);
+		mtk_ddp_write(cmdq_pkt,
+			      DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) |
+			      DITHER_ADD_LSHIFT_R(MTK_MAX_BPC - bpc) |
+			      DITHER_NEW_BIT_MODE,
+			      cmdq_reg, regs, DISP_REG_DITHER_15);
+		mtk_ddp_write(cmdq_pkt,
+			      DITHER_LSB_ERR_SHIFT_B(MTK_MAX_BPC - bpc) |
+			      DITHER_ADD_LSHIFT_B(MTK_MAX_BPC - bpc) |
+			      DITHER_LSB_ERR_SHIFT_G(MTK_MAX_BPC - bpc) |
+			      DITHER_ADD_LSHIFT_G(MTK_MAX_BPC - bpc),
+			      cmdq_reg, regs, DISP_REG_DITHER_16);
+		mtk_ddp_write(cmdq_pkt, dither_en, cmdq_reg, regs, cfg);
+	}
+}
+
+static void mtk_dither_config(struct device *dev, unsigned int w,
+			      unsigned int h, unsigned int vrefresh,
+			      unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_REG_DITHER_SIZE);
+	mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_DITHER_CFG);
+	mtk_dither_set_common(priv->regs, &priv->cmdq_reg, bpc, DISP_REG_DITHER_CFG,
+			      DITHER_ENGINE_EN, cmdq_pkt);
+}
+
+static void mtk_dither_start(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	writel(DITHER_EN, priv->regs + DISP_REG_DITHER_EN);
+}
+
+static void mtk_dither_stop(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, priv->regs + DISP_REG_DITHER_EN);
+}
+
+static void mtk_dither_set(struct device *dev, unsigned int bpc,
+			   unsigned int cfg, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	mtk_dither_set_common(priv->regs, &priv->cmdq_reg, bpc, cfg,
+			      DISP_DITHERING, cmdq_pkt);
+}
+
+static void mtk_dsc_config(struct device *dev, unsigned int w,
+			   unsigned int h, unsigned int vrefresh,
+			   unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	/* dsc bypass mode */
+	mtk_ddp_write_mask(cmdq_pkt, DSC_BYPASS, &priv->cmdq_reg, priv->regs,
+			   DISP_REG_DSC_CON, DSC_BYPASS);
+	mtk_ddp_write_mask(cmdq_pkt, DSC_UFOE_SEL, &priv->cmdq_reg, priv->regs,
+			   DISP_REG_DSC_CON, DSC_UFOE_SEL);
+	mtk_ddp_write_mask(cmdq_pkt, DSC_DUAL_INOUT, &priv->cmdq_reg, priv->regs,
+			   DISP_REG_DSC_CON, DSC_DUAL_INOUT);
+}
+
+static void mtk_dsc_start(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	/* write with mask to reserve the value set in mtk_dsc_config */
+	mtk_ddp_write_mask(NULL, DSC_EN, &priv->cmdq_reg, priv->regs, DISP_REG_DSC_CON, DSC_EN);
+}
+
+static void mtk_dsc_stop(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, priv->regs + DISP_REG_DSC_CON);
+}
+
+static void mtk_od_config(struct device *dev, unsigned int w,
+			  unsigned int h, unsigned int vrefresh,
+			  unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_REG_OD_SIZE);
+	mtk_ddp_write(cmdq_pkt, OD_RELAYMODE, &priv->cmdq_reg, priv->regs, DISP_REG_OD_CFG);
+	mtk_dither_set(dev, bpc, DISP_REG_OD_CFG, cmdq_pkt);
+}
+
+static void mtk_od_start(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	writel(1, priv->regs + DISP_REG_OD_EN);
+}
+
+static void mtk_postmask_config(struct device *dev, unsigned int w,
+				unsigned int h, unsigned int vrefresh,
+				unsigned int bpc, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_POSTMASK_SIZE);
+	mtk_ddp_write(cmdq_pkt, POSTMASK_RELAY_MODE, &priv->cmdq_reg,
+		      priv->regs, DISP_REG_POSTMASK_CFG);
+}
+
+static void mtk_postmask_start(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	writel(POSTMASK_EN, priv->regs + DISP_REG_POSTMASK_EN);
+}
+
+static void mtk_postmask_stop(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	writel_relaxed(0x0, priv->regs + DISP_REG_POSTMASK_EN);
+}
+
+static void mtk_ufoe_start(struct device *dev)
+{
+	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
+
+	writel(UFO_BYPASS, priv->regs + DISP_REG_UFO_START);
+}
+
+static const struct mtk_ddp_comp_funcs ddp_aal = {
+	.clk_enable = mtk_aal_clk_enable,
+	.clk_disable = mtk_aal_clk_disable,
+	.gamma_set = mtk_aal_gamma_set,
+	.config = mtk_aal_config,
+	.start = mtk_aal_start,
+	.stop = mtk_aal_stop,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_ccorr = {
+	.clk_enable = mtk_ccorr_clk_enable,
+	.clk_disable = mtk_ccorr_clk_disable,
+	.config = mtk_ccorr_config,
+	.start = mtk_ccorr_start,
+	.stop = mtk_ccorr_stop,
+	.ctm_set = mtk_ccorr_ctm_set,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_color = {
+	.clk_enable = mtk_color_clk_enable,
+	.clk_disable = mtk_color_clk_disable,
+	.config = mtk_color_config,
+	.start = mtk_color_start,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_dither = {
+	.clk_enable = mtk_ddp_clk_enable,
+	.clk_disable = mtk_ddp_clk_disable,
+	.config = mtk_dither_config,
+	.start = mtk_dither_start,
+	.stop = mtk_dither_stop,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_dpi = {
+	.start = mtk_dpi_start,
+	.stop = mtk_dpi_stop,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_dsc = {
+	.clk_enable = mtk_ddp_clk_enable,
+	.clk_disable = mtk_ddp_clk_disable,
+	.config = mtk_dsc_config,
+	.start = mtk_dsc_start,
+	.stop = mtk_dsc_stop,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_dsi = {
+	.start = mtk_dsi_ddp_start,
+	.stop = mtk_dsi_ddp_stop,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_gamma = {
+	.clk_enable = mtk_gamma_clk_enable,
+	.clk_disable = mtk_gamma_clk_disable,
+	.gamma_set = mtk_gamma_set,
+	.config = mtk_gamma_config,
+	.start = mtk_gamma_start,
+	.stop = mtk_gamma_stop,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_merge = {
+	.clk_enable = mtk_merge_clk_enable,
+	.clk_disable = mtk_merge_clk_disable,
+	.start = mtk_merge_start,
+	.stop = mtk_merge_stop,
+	.config = mtk_merge_config,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_od = {
+	.clk_enable = mtk_ddp_clk_enable,
+	.clk_disable = mtk_ddp_clk_disable,
+	.config = mtk_od_config,
+	.start = mtk_od_start,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_ovl = {
+	.clk_enable = mtk_ovl_clk_enable,
+	.clk_disable = mtk_ovl_clk_disable,
+	.config = mtk_ovl_config,
+	.start = mtk_ovl_start,
+	.stop = mtk_ovl_stop,
+	.register_vblank_cb = mtk_ovl_register_vblank_cb,
+	.unregister_vblank_cb = mtk_ovl_unregister_vblank_cb,
+	.enable_vblank = mtk_ovl_enable_vblank,
+	.disable_vblank = mtk_ovl_disable_vblank,
+	.supported_rotations = mtk_ovl_supported_rotations,
+	.layer_nr = mtk_ovl_layer_nr,
+	.layer_check = mtk_ovl_layer_check,
+	.layer_config = mtk_ovl_layer_config,
+	.bgclr_in_on = mtk_ovl_bgclr_in_on,
+	.bgclr_in_off = mtk_ovl_bgclr_in_off,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_postmask = {
+	.clk_enable = mtk_ddp_clk_enable,
+	.clk_disable = mtk_ddp_clk_disable,
+	.config = mtk_postmask_config,
+	.start = mtk_postmask_start,
+	.stop = mtk_postmask_stop,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_rdma = {
+	.clk_enable = mtk_rdma_clk_enable,
+	.clk_disable = mtk_rdma_clk_disable,
+	.config = mtk_rdma_config,
+	.start = mtk_rdma_start,
+	.stop = mtk_rdma_stop,
+	.register_vblank_cb = mtk_rdma_register_vblank_cb,
+	.unregister_vblank_cb = mtk_rdma_unregister_vblank_cb,
+	.enable_vblank = mtk_rdma_enable_vblank,
+	.disable_vblank = mtk_rdma_disable_vblank,
+	.layer_nr = mtk_rdma_layer_nr,
+	.layer_config = mtk_rdma_layer_config,
+};
+
+static const struct mtk_ddp_comp_funcs ddp_ufoe = {
+	.clk_enable = mtk_ddp_clk_enable,
+	.clk_disable = mtk_ddp_clk_disable,
+	.start = mtk_ufoe_start,
+};
+
+static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] = {
+	[MTK_DISP_AAL] = "aal",
+	[MTK_DISP_BLS] = "bls",
+	[MTK_DISP_CCORR] = "ccorr",
+	[MTK_DISP_COLOR] = "color",
+	[MTK_DISP_DITHER] = "dither",
+	[MTK_DISP_DSC] = "dsc",
+	[MTK_DISP_GAMMA] = "gamma",
+	[MTK_DISP_MERGE] = "merge",
+	[MTK_DISP_MUTEX] = "mutex",
+	[MTK_DISP_OD] = "od",
+	[MTK_DISP_OVL] = "ovl",
+	[MTK_DISP_OVL_2L] = "ovl-2l",
+	[MTK_DISP_POSTMASK] = "postmask",
+	[MTK_DISP_PWM] = "pwm",
+	[MTK_DISP_RDMA] = "rdma",
+	[MTK_DISP_UFOE] = "ufoe",
+	[MTK_DISP_WDMA] = "wdma",
+	[MTK_DP_INTF] = "dp-intf",
+	[MTK_DPI] = "dpi",
+	[MTK_DSI] = "dsi",
+};
+
+struct mtk_ddp_comp_match {
+	enum mtk_ddp_comp_type type;
+	int alias_id;
+	const struct mtk_ddp_comp_funcs *funcs;
+};
+
+static const struct mtk_ddp_comp_match mtk_ddp_matches[DDP_COMPONENT_ID_MAX] = {
+	[DDP_COMPONENT_AAL0]		= { MTK_DISP_AAL,	0, &ddp_aal },
+	[DDP_COMPONENT_AAL1]		= { MTK_DISP_AAL,	1, &ddp_aal },
+	[DDP_COMPONENT_BLS]		= { MTK_DISP_BLS,	0, NULL },
+	[DDP_COMPONENT_CCORR]		= { MTK_DISP_CCORR,	0, &ddp_ccorr },
+	[DDP_COMPONENT_COLOR0]		= { MTK_DISP_COLOR,	0, &ddp_color },
+	[DDP_COMPONENT_COLOR1]		= { MTK_DISP_COLOR,	1, &ddp_color },
+	[DDP_COMPONENT_DITHER0]		= { MTK_DISP_DITHER,	0, &ddp_dither },
+	[DDP_COMPONENT_DP_INTF0]	= { MTK_DP_INTF,	0, &ddp_dpi },
+	[DDP_COMPONENT_DP_INTF1]	= { MTK_DP_INTF,	1, &ddp_dpi },
+	[DDP_COMPONENT_DPI0]		= { MTK_DPI,		0, &ddp_dpi },
+	[DDP_COMPONENT_DPI1]		= { MTK_DPI,		1, &ddp_dpi },
+	[DDP_COMPONENT_DSC0]		= { MTK_DISP_DSC,	0, &ddp_dsc },
+	[DDP_COMPONENT_DSC1]		= { MTK_DISP_DSC,	1, &ddp_dsc },
+	[DDP_COMPONENT_DSI0]		= { MTK_DSI,		0, &ddp_dsi },
+	[DDP_COMPONENT_DSI1]		= { MTK_DSI,		1, &ddp_dsi },
+	[DDP_COMPONENT_DSI2]		= { MTK_DSI,		2, &ddp_dsi },
+	[DDP_COMPONENT_DSI3]		= { MTK_DSI,		3, &ddp_dsi },
+	[DDP_COMPONENT_GAMMA]		= { MTK_DISP_GAMMA,	0, &ddp_gamma },
+	[DDP_COMPONENT_MERGE0]		= { MTK_DISP_MERGE,	0, &ddp_merge },
+	[DDP_COMPONENT_MERGE1]		= { MTK_DISP_MERGE,	1, &ddp_merge },
+	[DDP_COMPONENT_MERGE2]		= { MTK_DISP_MERGE,	2, &ddp_merge },
+	[DDP_COMPONENT_MERGE3]		= { MTK_DISP_MERGE,	3, &ddp_merge },
+	[DDP_COMPONENT_MERGE4]		= { MTK_DISP_MERGE,	4, &ddp_merge },
+	[DDP_COMPONENT_MERGE5]		= { MTK_DISP_MERGE,	5, &ddp_merge },
+	[DDP_COMPONENT_OD0]		= { MTK_DISP_OD,	0, &ddp_od },
+	[DDP_COMPONENT_OD1]		= { MTK_DISP_OD,	1, &ddp_od },
+	[DDP_COMPONENT_OVL0]		= { MTK_DISP_OVL,	0, &ddp_ovl },
+	[DDP_COMPONENT_OVL1]		= { MTK_DISP_OVL,	1, &ddp_ovl },
+	[DDP_COMPONENT_OVL_2L0]		= { MTK_DISP_OVL_2L,	0, &ddp_ovl },
+	[DDP_COMPONENT_OVL_2L1]		= { MTK_DISP_OVL_2L,	1, &ddp_ovl },
+	[DDP_COMPONENT_OVL_2L2]		= { MTK_DISP_OVL_2L,    2, &ddp_ovl },
+	[DDP_COMPONENT_POSTMASK0]	= { MTK_DISP_POSTMASK,	0, &ddp_postmask },
+	[DDP_COMPONENT_PWM0]		= { MTK_DISP_PWM,	0, NULL },
+	[DDP_COMPONENT_PWM1]		= { MTK_DISP_PWM,	1, NULL },
+	[DDP_COMPONENT_PWM2]		= { MTK_DISP_PWM,	2, NULL },
+	[DDP_COMPONENT_RDMA0]		= { MTK_DISP_RDMA,	0, &ddp_rdma },
+	[DDP_COMPONENT_RDMA1]		= { MTK_DISP_RDMA,	1, &ddp_rdma },
+	[DDP_COMPONENT_RDMA2]		= { MTK_DISP_RDMA,	2, &ddp_rdma },
+	[DDP_COMPONENT_RDMA4]		= { MTK_DISP_RDMA,      4, &ddp_rdma },
+	[DDP_COMPONENT_UFOE]		= { MTK_DISP_UFOE,	0, &ddp_ufoe },
+	[DDP_COMPONENT_WDMA0]		= { MTK_DISP_WDMA,	0, NULL },
+	[DDP_COMPONENT_WDMA1]		= { MTK_DISP_WDMA,	1, NULL },
+};
+
+static bool mtk_drm_find_comp_in_ddp(struct device *dev,
+				     const enum mtk_ddp_comp_id *path,
+				     unsigned int path_len,
+				     struct mtk_ddp_comp *ddp_comp)
+{
+	unsigned int i;
+
+	if (path == NULL)
+		return false;
+
+	for (i = 0U; i < path_len; i++)
+		if (dev == ddp_comp[path[i]].dev)
+			return true;
+
+	return false;
+}
+
+int mtk_ddp_comp_get_id(struct device_node *node,
+			enum mtk_ddp_comp_type comp_type)
+{
+	int id = of_alias_get_id(node, mtk_ddp_comp_stem[comp_type]);
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mtk_ddp_matches); i++) {
+		if (comp_type == mtk_ddp_matches[i].type &&
+		    (id < 0 || id == mtk_ddp_matches[i].alias_id))
+			return i;
+	}
+
+	return -EINVAL;
+}
+
+unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
+						struct device *dev)
+{
+	struct mtk_drm_private *private = drm->dev_private;
+	unsigned int ret = 0;
+
+	if (mtk_drm_find_comp_in_ddp(dev, private->data->main_path, private->data->main_len,
+				     private->ddp_comp))
+		ret = BIT(0);
+	else if (mtk_drm_find_comp_in_ddp(dev, private->data->ext_path,
+					  private->data->ext_len, private->ddp_comp))
+		ret = BIT(1);
+	else if (mtk_drm_find_comp_in_ddp(dev, private->data->third_path,
+					  private->data->third_len, private->ddp_comp))
+		ret = BIT(2);
+	else
+		DRM_INFO("Failed to find comp in ddp table\n");
+
+	return ret;
+}
+
+int mtk_ddp_comp_init(struct device_node *node, struct mtk_ddp_comp *comp,
+		      enum mtk_ddp_comp_id comp_id)
+{
+	struct platform_device *comp_pdev;
+	enum mtk_ddp_comp_type type;
+	struct mtk_ddp_comp_dev *priv;
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	int ret;
+#endif
+
+	if (comp_id < 0 || comp_id >= DDP_COMPONENT_ID_MAX)
+		return -EINVAL;
+
+	type = mtk_ddp_matches[comp_id].type;
+
+	comp->id = comp_id;
+	comp->funcs = mtk_ddp_matches[comp_id].funcs;
+	comp_pdev = of_find_device_by_node(node);
+	if (!comp_pdev) {
+		DRM_INFO("Waiting for device %s\n", node->full_name);
+		return -EPROBE_DEFER;
+	}
+	comp->dev = &comp_pdev->dev;
+
+	if (type == MTK_DISP_AAL ||
+	    type == MTK_DISP_BLS ||
+	    type == MTK_DISP_CCORR ||
+	    type == MTK_DISP_COLOR ||
+	    type == MTK_DISP_GAMMA ||
+	    type == MTK_DISP_MERGE ||
+	    type == MTK_DISP_OVL ||
+	    type == MTK_DISP_OVL_2L ||
+	    type == MTK_DISP_PWM ||
+	    type == MTK_DISP_RDMA ||
+	    type == MTK_DPI ||
+	    type == MTK_DP_INTF ||
+	    type == MTK_DSI)
+		return 0;
+
+	priv = devm_kzalloc(comp->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->regs = of_iomap(node, 0);
+	priv->clk = of_clk_get(node, 0);
+	if (IS_ERR(priv->clk))
+		return PTR_ERR(priv->clk);
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(comp->dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(comp->dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+
+	platform_set_drvdata(comp_pdev, priv);
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
new file mode 100644
index 000000000..2d0052c23
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -0,0 +1,222 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#ifndef MTK_DRM_DDP_COMP_H
+#define MTK_DRM_DDP_COMP_H
+
+#include <linux/io.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+#include <linux/soc/mediatek/mtk-mmsys.h>
+
+struct device;
+struct device_node;
+struct drm_crtc;
+struct drm_device;
+struct mtk_plane_state;
+struct drm_crtc_state;
+
+enum mtk_ddp_comp_type {
+	MTK_DISP_AAL,
+	MTK_DISP_BLS,
+	MTK_DISP_CCORR,
+	MTK_DISP_COLOR,
+	MTK_DISP_DITHER,
+	MTK_DISP_DSC,
+	MTK_DISP_GAMMA,
+	MTK_DISP_MERGE,
+	MTK_DISP_MUTEX,
+	MTK_DISP_OD,
+	MTK_DISP_OVL,
+	MTK_DISP_OVL_2L,
+	MTK_DISP_POSTMASK,
+	MTK_DISP_PWM,
+	MTK_DISP_RDMA,
+	MTK_DISP_UFOE,
+	MTK_DISP_WDMA,
+	MTK_DPI,
+	MTK_DP_INTF,
+	MTK_DSI,
+	MTK_DDP_COMP_TYPE_MAX,
+};
+
+struct mtk_ddp_comp;
+struct cmdq_pkt;
+struct mtk_ddp_comp_funcs {
+	int (*clk_enable)(struct device *dev);
+	void (*clk_disable)(struct device *dev);
+	void (*config)(struct device *dev, unsigned int w,
+		       unsigned int h, unsigned int vrefresh,
+		       unsigned int bpc, struct cmdq_pkt *cmdq_pkt);
+	void (*start)(struct device *dev);
+	void (*stop)(struct device *dev);
+	void (*register_vblank_cb)(struct device *dev,
+				   void (*vblank_cb)(void *),
+				   void *vblank_cb_data);
+	void (*unregister_vblank_cb)(struct device *dev);
+	void (*enable_vblank)(struct device *dev);
+	void (*disable_vblank)(struct device *dev);
+	unsigned int (*supported_rotations)(struct device *dev);
+	unsigned int (*layer_nr)(struct device *dev);
+	int (*layer_check)(struct device *dev,
+			   unsigned int idx,
+			   struct mtk_plane_state *state);
+	void (*layer_config)(struct device *dev, unsigned int idx,
+			     struct mtk_plane_state *state,
+			     struct cmdq_pkt *cmdq_pkt);
+	void (*gamma_set)(struct device *dev,
+			  struct drm_crtc_state *state);
+	void (*bgclr_in_on)(struct device *dev);
+	void (*bgclr_in_off)(struct device *dev);
+	void (*ctm_set)(struct device *dev,
+			struct drm_crtc_state *state);
+};
+
+struct mtk_ddp_comp {
+	struct device *dev;
+	int irq;
+	enum mtk_ddp_comp_id id;
+	const struct mtk_ddp_comp_funcs *funcs;
+};
+
+static inline int mtk_ddp_comp_clk_enable(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->clk_enable)
+		return comp->funcs->clk_enable(comp->dev);
+
+	return 0;
+}
+
+static inline void mtk_ddp_comp_clk_disable(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->clk_disable)
+		comp->funcs->clk_disable(comp->dev);
+}
+
+static inline void mtk_ddp_comp_config(struct mtk_ddp_comp *comp,
+				       unsigned int w, unsigned int h,
+				       unsigned int vrefresh, unsigned int bpc,
+				       struct cmdq_pkt *cmdq_pkt)
+{
+	if (comp->funcs && comp->funcs->config)
+		comp->funcs->config(comp->dev, w, h, vrefresh, bpc, cmdq_pkt);
+}
+
+static inline void mtk_ddp_comp_start(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->start)
+		comp->funcs->start(comp->dev);
+}
+
+static inline void mtk_ddp_comp_stop(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->stop)
+		comp->funcs->stop(comp->dev);
+}
+
+static inline void mtk_ddp_comp_register_vblank_cb(struct mtk_ddp_comp *comp,
+						   void (*vblank_cb)(void *),
+						   void *vblank_cb_data)
+{
+	if (comp->funcs && comp->funcs->register_vblank_cb)
+		comp->funcs->register_vblank_cb(comp->dev, vblank_cb,
+						vblank_cb_data);
+}
+
+static inline void mtk_ddp_comp_unregister_vblank_cb(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->unregister_vblank_cb)
+		comp->funcs->unregister_vblank_cb(comp->dev);
+}
+
+static inline void mtk_ddp_comp_enable_vblank(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->enable_vblank)
+		comp->funcs->enable_vblank(comp->dev);
+}
+
+static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->disable_vblank)
+		comp->funcs->disable_vblank(comp->dev);
+}
+
+static inline
+unsigned int mtk_ddp_comp_supported_rotations(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->supported_rotations)
+		return comp->funcs->supported_rotations(comp->dev);
+
+	return 0;
+}
+
+static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->layer_nr)
+		return comp->funcs->layer_nr(comp->dev);
+
+	return 0;
+}
+
+static inline int mtk_ddp_comp_layer_check(struct mtk_ddp_comp *comp,
+					   unsigned int idx,
+					   struct mtk_plane_state *state)
+{
+	if (comp->funcs && comp->funcs->layer_check)
+		return comp->funcs->layer_check(comp->dev, idx, state);
+	return 0;
+}
+
+static inline void mtk_ddp_comp_layer_config(struct mtk_ddp_comp *comp,
+					     unsigned int idx,
+					     struct mtk_plane_state *state,
+					     struct cmdq_pkt *cmdq_pkt)
+{
+	if (comp->funcs && comp->funcs->layer_config)
+		comp->funcs->layer_config(comp->dev, idx, state, cmdq_pkt);
+}
+
+static inline void mtk_ddp_gamma_set(struct mtk_ddp_comp *comp,
+				     struct drm_crtc_state *state)
+{
+	if (comp->funcs && comp->funcs->gamma_set)
+		comp->funcs->gamma_set(comp->dev, state);
+}
+
+static inline void mtk_ddp_comp_bgclr_in_on(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->bgclr_in_on)
+		comp->funcs->bgclr_in_on(comp->dev);
+}
+
+static inline void mtk_ddp_comp_bgclr_in_off(struct mtk_ddp_comp *comp)
+{
+	if (comp->funcs && comp->funcs->bgclr_in_off)
+		comp->funcs->bgclr_in_off(comp->dev);
+}
+
+static inline void mtk_ddp_ctm_set(struct mtk_ddp_comp *comp,
+				   struct drm_crtc_state *state)
+{
+	if (comp->funcs && comp->funcs->ctm_set)
+		comp->funcs->ctm_set(comp->dev, state);
+}
+
+int mtk_ddp_comp_get_id(struct device_node *node,
+			enum mtk_ddp_comp_type comp_type);
+unsigned int mtk_drm_find_possible_crtc_by_comp(struct drm_device *drm,
+						struct device *dev);
+int mtk_ddp_comp_init(struct device_node *comp_node, struct mtk_ddp_comp *comp,
+		      enum mtk_ddp_comp_id comp_id);
+enum mtk_ddp_comp_type mtk_ddp_comp_get_type(enum mtk_ddp_comp_id comp_id);
+void mtk_ddp_write(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+		   struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
+		   unsigned int offset);
+void mtk_ddp_write_relaxed(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+			   struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
+			   unsigned int offset);
+void mtk_ddp_write_mask(struct cmdq_pkt *cmdq_pkt, unsigned int value,
+			struct cmdq_client_reg *cmdq_reg, void __iomem *regs,
+			unsigned int offset, unsigned int mask);
+#endif /* MTK_DRM_DDP_COMP_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
new file mode 100644
index 000000000..25639fbfd
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -0,0 +1,897 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author: YT SHEN <yt.shen@mediatek.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/component.h>
+#include <linux/iommu.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/dma-mapping.h>
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_fb_helper.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_of.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_vblank.h>
+
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+#include "mtk_drm_drv.h"
+#include "mtk_drm_gem.h"
+
+#define DRIVER_NAME "mediatek"
+#define DRIVER_DESC "Mediatek SoC DRM"
+#define DRIVER_DATE "20150513"
+#define DRIVER_MAJOR 1
+#define DRIVER_MINOR 0
+
+static const struct drm_mode_config_helper_funcs mtk_drm_mode_config_helpers = {
+	.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
+};
+
+static struct drm_framebuffer *
+mtk_drm_mode_fb_create(struct drm_device *dev,
+		       struct drm_file *file,
+		       const struct drm_mode_fb_cmd2 *cmd)
+{
+	const struct drm_format_info *info = drm_get_format_info(dev, cmd);
+
+	if (info->num_planes != 1)
+		return ERR_PTR(-EINVAL);
+
+	return drm_gem_fb_create(dev, file, cmd);
+}
+
+static const struct drm_mode_config_funcs mtk_drm_mode_config_funcs = {
+	.fb_create = mtk_drm_mode_fb_create,
+	.atomic_check = drm_atomic_helper_check,
+	.atomic_commit = drm_atomic_helper_commit,
+};
+
+static const enum mtk_ddp_comp_id mt2701_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_BLS,
+	DDP_COMPONENT_DSI0,
+};
+
+static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
+	DDP_COMPONENT_RDMA1,
+	DDP_COMPONENT_DPI0,
+};
+
+static const enum mtk_ddp_comp_id mt7623_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_BLS,
+	DDP_COMPONENT_DPI0,
+};
+
+static const enum mtk_ddp_comp_id mt7623_mtk_ddp_ext[] = {
+	DDP_COMPONENT_RDMA1,
+	DDP_COMPONENT_DSI0,
+};
+
+static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_OD0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_DPI0,
+	DDP_COMPONENT_PWM0,
+};
+
+static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
+	DDP_COMPONENT_OVL1,
+	DDP_COMPONENT_COLOR1,
+	DDP_COMPONENT_AAL1,
+	DDP_COMPONENT_OD1,
+	DDP_COMPONENT_RDMA1,
+	DDP_COMPONENT_DPI1,
+	DDP_COMPONENT_PWM1,
+};
+
+static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = {
+	DDP_COMPONENT_RDMA2,
+	DDP_COMPONENT_DSI3,
+	DDP_COMPONENT_PWM2,
+};
+
+static enum mtk_ddp_comp_id mt8167_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_CCORR,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_GAMMA,
+	DDP_COMPONENT_DITHER0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_DSI0,
+};
+
+static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_OD0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_UFOE,
+	DDP_COMPONENT_DSI0,
+	DDP_COMPONENT_PWM0,
+};
+
+static const enum mtk_ddp_comp_id mt8173_mtk_ddp_ext[] = {
+	DDP_COMPONENT_OVL1,
+	DDP_COMPONENT_COLOR1,
+	DDP_COMPONENT_GAMMA,
+	DDP_COMPONENT_RDMA1,
+	DDP_COMPONENT_DPI0,
+};
+
+static const enum mtk_ddp_comp_id mt8183_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_OVL_2L0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_CCORR,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_GAMMA,
+	DDP_COMPONENT_DITHER0,
+	DDP_COMPONENT_DSI0,
+};
+
+static const enum mtk_ddp_comp_id mt8183_mtk_ddp_ext[] = {
+	DDP_COMPONENT_OVL_2L1,
+	DDP_COMPONENT_RDMA1,
+	DDP_COMPONENT_DPI0,
+};
+
+static const enum mtk_ddp_comp_id mt8186_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_CCORR,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_GAMMA,
+	DDP_COMPONENT_POSTMASK0,
+	DDP_COMPONENT_DITHER0,
+	DDP_COMPONENT_DSI0,
+};
+
+static const enum mtk_ddp_comp_id mt8186_mtk_ddp_ext[] = {
+	DDP_COMPONENT_OVL_2L0,
+	DDP_COMPONENT_RDMA1,
+	DDP_COMPONENT_DPI0,
+};
+
+static const enum mtk_ddp_comp_id mt8192_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_OVL_2L0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_CCORR,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_GAMMA,
+	DDP_COMPONENT_POSTMASK0,
+	DDP_COMPONENT_DITHER0,
+	DDP_COMPONENT_DSI0,
+};
+
+static const enum mtk_ddp_comp_id mt8192_mtk_ddp_ext[] = {
+	DDP_COMPONENT_OVL_2L2,
+	DDP_COMPONENT_RDMA4,
+	DDP_COMPONENT_DPI0,
+};
+
+static const enum mtk_ddp_comp_id mt8195_mtk_ddp_main[] = {
+	DDP_COMPONENT_OVL0,
+	DDP_COMPONENT_RDMA0,
+	DDP_COMPONENT_COLOR0,
+	DDP_COMPONENT_CCORR,
+	DDP_COMPONENT_AAL0,
+	DDP_COMPONENT_GAMMA,
+	DDP_COMPONENT_DITHER0,
+	DDP_COMPONENT_DSC0,
+	DDP_COMPONENT_MERGE0,
+	DDP_COMPONENT_DP_INTF0,
+};
+
+static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
+	.main_path = mt2701_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt2701_mtk_ddp_main),
+	.ext_path = mt2701_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt2701_mtk_ddp_ext),
+	.shadow_register = true,
+};
+
+static const struct mtk_mmsys_match_data mt2701_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt2701_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt7623_mmsys_driver_data = {
+	.main_path = mt7623_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt7623_mtk_ddp_main),
+	.ext_path = mt7623_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt7623_mtk_ddp_ext),
+	.shadow_register = true,
+};
+
+static const struct mtk_mmsys_match_data mt7623_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt7623_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
+	.main_path = mt2712_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
+	.ext_path = mt2712_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext),
+	.third_path = mt2712_mtk_ddp_third,
+	.third_len = ARRAY_SIZE(mt2712_mtk_ddp_third),
+};
+
+static const struct mtk_mmsys_match_data mt2712_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt2712_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt8167_mmsys_driver_data = {
+	.main_path = mt8167_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt8167_mtk_ddp_main),
+};
+
+static const struct mtk_mmsys_match_data mt8167_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8167_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
+	.main_path = mt8173_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt8173_mtk_ddp_main),
+	.ext_path = mt8173_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt8173_mtk_ddp_ext),
+};
+
+static const struct mtk_mmsys_match_data mt8173_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8173_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = {
+	.main_path = mt8183_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt8183_mtk_ddp_main),
+	.ext_path = mt8183_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt8183_mtk_ddp_ext),
+};
+
+static const struct mtk_mmsys_match_data mt8183_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8183_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt8186_mmsys_driver_data = {
+	.main_path = mt8186_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt8186_mtk_ddp_main),
+	.ext_path = mt8186_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt8186_mtk_ddp_ext),
+};
+
+static const struct mtk_mmsys_match_data mt8186_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8186_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt8192_mmsys_driver_data = {
+	.main_path = mt8192_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt8192_mtk_ddp_main),
+	.ext_path = mt8192_mtk_ddp_ext,
+	.ext_len = ARRAY_SIZE(mt8192_mtk_ddp_ext),
+};
+
+static const struct mtk_mmsys_match_data mt8192_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8192_mmsys_driver_data,
+	},
+};
+
+static const struct mtk_mmsys_driver_data mt8195_vdosys0_driver_data = {
+	.io_start = 0x1c01a000,
+	.main_path = mt8195_mtk_ddp_main,
+	.main_len = ARRAY_SIZE(mt8195_mtk_ddp_main),
+};
+
+static const struct mtk_mmsys_driver_data mt8195_vdosys1_driver_data = {
+	.io_start = 0x1c100000,
+};
+
+static const struct mtk_mmsys_match_data mt8195_mmsys_match_data = {
+	.num_drv_data = 1,
+	.drv_data = {
+		&mt8195_vdosys0_driver_data,
+		&mt8195_vdosys1_driver_data,
+	},
+};
+
+static int mtk_drm_kms_init(struct drm_device *drm)
+{
+	struct mtk_drm_private *private = drm->dev_private;
+	struct platform_device *pdev;
+	struct device_node *np;
+	struct device *dma_dev;
+	int ret;
+
+	if (drm_firmware_drivers_only())
+		return -ENODEV;
+
+	if (!iommu_present(&platform_bus_type))
+		return -EPROBE_DEFER;
+
+	pdev = of_find_device_by_node(private->mutex_node);
+	if (!pdev) {
+		dev_err(drm->dev, "Waiting for disp-mutex device %pOF\n",
+			private->mutex_node);
+		of_node_put(private->mutex_node);
+		return -EPROBE_DEFER;
+	}
+	private->mutex_dev = &pdev->dev;
+
+	ret = drmm_mode_config_init(drm);
+	if (ret)
+		goto put_mutex_dev;
+
+	drm->mode_config.min_width = 64;
+	drm->mode_config.min_height = 64;
+
+	/*
+	 * set max width and height as default value(4096x4096).
+	 * this value would be used to check framebuffer size limitation
+	 * at drm_mode_addfb().
+	 */
+	drm->mode_config.max_width = 4096;
+	drm->mode_config.max_height = 4096;
+	drm->mode_config.funcs = &mtk_drm_mode_config_funcs;
+	drm->mode_config.helper_private = &mtk_drm_mode_config_helpers;
+
+	ret = component_bind_all(drm->dev, drm);
+	if (ret)
+		goto put_mutex_dev;
+
+	/*
+	 * We currently support two fixed data streams, each optional,
+	 * and each statically assigned to a crtc:
+	 * OVL0 -> COLOR0 -> AAL -> OD -> RDMA0 -> UFOE -> DSI0 ...
+	 */
+	ret = mtk_drm_crtc_create(drm, private->data->main_path,
+				  private->data->main_len);
+	if (ret < 0)
+		goto err_component_unbind;
+	/* ... and OVL1 -> COLOR1 -> GAMMA -> RDMA1 -> DPI0. */
+	ret = mtk_drm_crtc_create(drm, private->data->ext_path,
+				  private->data->ext_len);
+	if (ret < 0)
+		goto err_component_unbind;
+
+	ret = mtk_drm_crtc_create(drm, private->data->third_path,
+				  private->data->third_len);
+	if (ret < 0)
+		goto err_component_unbind;
+
+	/* Use OVL device for all DMA memory allocations */
+	np = private->comp_node[private->data->main_path[0]] ?:
+	     private->comp_node[private->data->ext_path[0]];
+	pdev = of_find_device_by_node(np);
+	if (!pdev) {
+		ret = -ENODEV;
+		dev_err(drm->dev, "Need at least one OVL device\n");
+		goto err_component_unbind;
+	}
+
+	dma_dev = &pdev->dev;
+	private->dma_dev = dma_dev;
+
+	/*
+	 * Configure the DMA segment size to make sure we get contiguous IOVA
+	 * when importing PRIME buffers.
+	 */
+	ret = dma_set_max_seg_size(dma_dev, UINT_MAX);
+	if (ret) {
+		dev_err(dma_dev, "Failed to set DMA segment size\n");
+		goto err_component_unbind;
+	}
+
+	ret = drm_vblank_init(drm, MAX_CRTC);
+	if (ret < 0)
+		goto err_component_unbind;
+
+	drm_kms_helper_poll_init(drm);
+	drm_mode_config_reset(drm);
+
+	return 0;
+
+err_component_unbind:
+	component_unbind_all(drm->dev, drm);
+put_mutex_dev:
+	put_device(private->mutex_dev);
+	return ret;
+}
+
+static void mtk_drm_kms_deinit(struct drm_device *drm)
+{
+	drm_kms_helper_poll_fini(drm);
+	drm_atomic_helper_shutdown(drm);
+
+	component_unbind_all(drm->dev, drm);
+}
+
+DEFINE_DRM_GEM_FOPS(mtk_drm_fops);
+
+/*
+ * We need to override this because the device used to import the memory is
+ * not dev->dev, as drm_gem_prime_import() expects.
+ */
+static struct drm_gem_object *mtk_drm_gem_prime_import(struct drm_device *dev,
+						       struct dma_buf *dma_buf)
+{
+	struct mtk_drm_private *private = dev->dev_private;
+
+	return drm_gem_prime_import_dev(dev, dma_buf, private->dma_dev);
+}
+
+static const struct drm_driver mtk_drm_driver = {
+	.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
+
+	.dumb_create = mtk_drm_gem_dumb_create,
+
+	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
+	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
+	.gem_prime_import = mtk_drm_gem_prime_import,
+	.gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
+	.gem_prime_mmap = drm_gem_prime_mmap,
+	.fops = &mtk_drm_fops,
+
+	.name = DRIVER_NAME,
+	.desc = DRIVER_DESC,
+	.date = DRIVER_DATE,
+	.major = DRIVER_MAJOR,
+	.minor = DRIVER_MINOR,
+};
+
+static int mtk_drm_bind(struct device *dev)
+{
+	struct mtk_drm_private *private = dev_get_drvdata(dev);
+	struct drm_device *drm;
+	int ret;
+
+	drm = drm_dev_alloc(&mtk_drm_driver, dev);
+	if (IS_ERR(drm))
+		return PTR_ERR(drm);
+
+	drm->dev_private = private;
+	private->drm = drm;
+
+	ret = mtk_drm_kms_init(drm);
+	if (ret < 0)
+		goto err_free;
+
+	ret = drm_dev_register(drm, 0);
+	if (ret < 0)
+		goto err_deinit;
+
+	drm_fbdev_generic_setup(drm, 32);
+
+	return 0;
+
+err_deinit:
+	mtk_drm_kms_deinit(drm);
+err_free:
+	private->drm = NULL;
+	drm_dev_put(drm);
+	return ret;
+}
+
+static void mtk_drm_unbind(struct device *dev)
+{
+	struct mtk_drm_private *private = dev_get_drvdata(dev);
+
+	drm_dev_unregister(private->drm);
+	mtk_drm_kms_deinit(private->drm);
+	drm_dev_put(private->drm);
+	private->num_pipes = 0;
+	private->drm = NULL;
+}
+
+static const struct component_master_ops mtk_drm_ops = {
+	.bind		= mtk_drm_bind,
+	.unbind		= mtk_drm_unbind,
+};
+
+static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
+	{ .compatible = "mediatek,mt8167-disp-aal",
+	  .data = (void *)MTK_DISP_AAL},
+	{ .compatible = "mediatek,mt8173-disp-aal",
+	  .data = (void *)MTK_DISP_AAL},
+	{ .compatible = "mediatek,mt8183-disp-aal",
+	  .data = (void *)MTK_DISP_AAL},
+	{ .compatible = "mediatek,mt8192-disp-aal",
+	  .data = (void *)MTK_DISP_AAL},
+	{ .compatible = "mediatek,mt8167-disp-ccorr",
+	  .data = (void *)MTK_DISP_CCORR },
+	{ .compatible = "mediatek,mt8183-disp-ccorr",
+	  .data = (void *)MTK_DISP_CCORR },
+	{ .compatible = "mediatek,mt8192-disp-ccorr",
+	  .data = (void *)MTK_DISP_CCORR },
+	{ .compatible = "mediatek,mt2701-disp-color",
+	  .data = (void *)MTK_DISP_COLOR },
+	{ .compatible = "mediatek,mt8167-disp-color",
+	  .data = (void *)MTK_DISP_COLOR },
+	{ .compatible = "mediatek,mt8173-disp-color",
+	  .data = (void *)MTK_DISP_COLOR },
+	{ .compatible = "mediatek,mt8167-disp-dither",
+	  .data = (void *)MTK_DISP_DITHER },
+	{ .compatible = "mediatek,mt8183-disp-dither",
+	  .data = (void *)MTK_DISP_DITHER },
+	{ .compatible = "mediatek,mt8195-disp-dsc",
+	  .data = (void *)MTK_DISP_DSC },
+	{ .compatible = "mediatek,mt8167-disp-gamma",
+	  .data = (void *)MTK_DISP_GAMMA, },
+	{ .compatible = "mediatek,mt8173-disp-gamma",
+	  .data = (void *)MTK_DISP_GAMMA, },
+	{ .compatible = "mediatek,mt8183-disp-gamma",
+	  .data = (void *)MTK_DISP_GAMMA, },
+	{ .compatible = "mediatek,mt8195-disp-merge",
+	  .data = (void *)MTK_DISP_MERGE },
+	{ .compatible = "mediatek,mt2701-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt2712-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt8167-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt8173-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt8183-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt8186-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt8192-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt8195-disp-mutex",
+	  .data = (void *)MTK_DISP_MUTEX },
+	{ .compatible = "mediatek,mt8173-disp-od",
+	  .data = (void *)MTK_DISP_OD },
+	{ .compatible = "mediatek,mt2701-disp-ovl",
+	  .data = (void *)MTK_DISP_OVL },
+	{ .compatible = "mediatek,mt8167-disp-ovl",
+	  .data = (void *)MTK_DISP_OVL },
+	{ .compatible = "mediatek,mt8173-disp-ovl",
+	  .data = (void *)MTK_DISP_OVL },
+	{ .compatible = "mediatek,mt8183-disp-ovl",
+	  .data = (void *)MTK_DISP_OVL },
+	{ .compatible = "mediatek,mt8192-disp-ovl",
+	  .data = (void *)MTK_DISP_OVL },
+	{ .compatible = "mediatek,mt8183-disp-ovl-2l",
+	  .data = (void *)MTK_DISP_OVL_2L },
+	{ .compatible = "mediatek,mt8192-disp-ovl-2l",
+	  .data = (void *)MTK_DISP_OVL_2L },
+	{ .compatible = "mediatek,mt8192-disp-postmask",
+	  .data = (void *)MTK_DISP_POSTMASK },
+	{ .compatible = "mediatek,mt2701-disp-pwm",
+	  .data = (void *)MTK_DISP_BLS },
+	{ .compatible = "mediatek,mt8167-disp-pwm",
+	  .data = (void *)MTK_DISP_PWM },
+	{ .compatible = "mediatek,mt8173-disp-pwm",
+	  .data = (void *)MTK_DISP_PWM },
+	{ .compatible = "mediatek,mt2701-disp-rdma",
+	  .data = (void *)MTK_DISP_RDMA },
+	{ .compatible = "mediatek,mt8167-disp-rdma",
+	  .data = (void *)MTK_DISP_RDMA },
+	{ .compatible = "mediatek,mt8173-disp-rdma",
+	  .data = (void *)MTK_DISP_RDMA },
+	{ .compatible = "mediatek,mt8183-disp-rdma",
+	  .data = (void *)MTK_DISP_RDMA },
+	{ .compatible = "mediatek,mt8195-disp-rdma",
+	  .data = (void *)MTK_DISP_RDMA },
+	{ .compatible = "mediatek,mt8173-disp-ufoe",
+	  .data = (void *)MTK_DISP_UFOE },
+	{ .compatible = "mediatek,mt8173-disp-wdma",
+	  .data = (void *)MTK_DISP_WDMA },
+	{ .compatible = "mediatek,mt2701-dpi",
+	  .data = (void *)MTK_DPI },
+	{ .compatible = "mediatek,mt8167-dsi",
+	  .data = (void *)MTK_DSI },
+	{ .compatible = "mediatek,mt8173-dpi",
+	  .data = (void *)MTK_DPI },
+	{ .compatible = "mediatek,mt8183-dpi",
+	  .data = (void *)MTK_DPI },
+	{ .compatible = "mediatek,mt8192-dpi",
+	  .data = (void *)MTK_DPI },
+	{ .compatible = "mediatek,mt8195-dp-intf",
+	  .data = (void *)MTK_DP_INTF },
+	{ .compatible = "mediatek,mt2701-dsi",
+	  .data = (void *)MTK_DSI },
+	{ .compatible = "mediatek,mt8173-dsi",
+	  .data = (void *)MTK_DSI },
+	{ .compatible = "mediatek,mt8183-dsi",
+	  .data = (void *)MTK_DSI },
+	{ .compatible = "mediatek,mt8186-dsi",
+	  .data = (void *)MTK_DSI },
+	{ }
+};
+
+static const struct of_device_id mtk_drm_of_ids[] = {
+	{ .compatible = "mediatek,mt2701-mmsys",
+	  .data = &mt2701_mmsys_match_data},
+	{ .compatible = "mediatek,mt7623-mmsys",
+	  .data = &mt7623_mmsys_match_data},
+	{ .compatible = "mediatek,mt2712-mmsys",
+	  .data = &mt2712_mmsys_match_data},
+	{ .compatible = "mediatek,mt8167-mmsys",
+	  .data = &mt8167_mmsys_match_data},
+	{ .compatible = "mediatek,mt8173-mmsys",
+	  .data = &mt8173_mmsys_match_data},
+	{ .compatible = "mediatek,mt8183-mmsys",
+	  .data = &mt8183_mmsys_match_data},
+	{ .compatible = "mediatek,mt8186-mmsys",
+	  .data = &mt8186_mmsys_match_data},
+	{ .compatible = "mediatek,mt8192-mmsys",
+	  .data = &mt8192_mmsys_match_data},
+	{ .compatible = "mediatek,mt8195-mmsys",
+	  .data = &mt8195_mmsys_match_data},
+	{ }
+};
+MODULE_DEVICE_TABLE(of, mtk_drm_of_ids);
+
+static int mtk_drm_find_match_data(struct device *dev,
+				   const struct mtk_mmsys_match_data *match_data)
+{
+	int i;
+	struct platform_device *pdev = of_find_device_by_node(dev->parent->of_node);
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "failed to get parent resource\n");
+		return -EINVAL;
+	}
+
+	for (i = 0; i < match_data->num_drv_data; i++)
+		if (match_data->drv_data[i]->io_start == res->start)
+			return i;
+
+	return -EINVAL;
+}
+
+static int mtk_drm_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *phandle = dev->parent->of_node;
+	const struct of_device_id *of_id;
+	const struct mtk_mmsys_match_data *match_data;
+	struct mtk_drm_private *private;
+	struct device_node *node;
+	struct component_match *match = NULL;
+	int ret;
+	int i;
+
+	private = devm_kzalloc(dev, sizeof(*private), GFP_KERNEL);
+	if (!private)
+		return -ENOMEM;
+
+	private->mmsys_dev = dev->parent;
+	if (!private->mmsys_dev) {
+		dev_err(dev, "Failed to get MMSYS device\n");
+		return -ENODEV;
+	}
+
+	of_id = of_match_node(mtk_drm_of_ids, phandle);
+	if (!of_id)
+		return -ENODEV;
+
+	match_data = of_id->data;
+	if (match_data->num_drv_data > 1) {
+		/* This SoC has multiple mmsys channels */
+		ret = mtk_drm_find_match_data(dev, match_data);
+		if (ret < 0) {
+			dev_err(dev, "Couldn't get match driver data\n");
+			return ret;
+		}
+		private->data = match_data->drv_data[ret];
+	} else {
+		dev_dbg(dev, "Using single mmsys channel\n");
+		private->data = match_data->drv_data[0];
+	}
+
+	/* Iterate over sibling DISP function blocks */
+	for_each_child_of_node(phandle->parent, node) {
+		const struct of_device_id *of_id;
+		enum mtk_ddp_comp_type comp_type;
+		int comp_id;
+
+		of_id = of_match_node(mtk_ddp_comp_dt_ids, node);
+		if (!of_id)
+			continue;
+
+		if (!of_device_is_available(node)) {
+			dev_dbg(dev, "Skipping disabled component %pOF\n",
+				node);
+			continue;
+		}
+
+		comp_type = (enum mtk_ddp_comp_type)of_id->data;
+
+		if (comp_type == MTK_DISP_MUTEX) {
+			private->mutex_node = of_node_get(node);
+			continue;
+		}
+
+		comp_id = mtk_ddp_comp_get_id(node, comp_type);
+		if (comp_id < 0) {
+			dev_warn(dev, "Skipping unknown component %pOF\n",
+				 node);
+			continue;
+		}
+
+		private->comp_node[comp_id] = of_node_get(node);
+
+		/*
+		 * Currently only the AAL, CCORR, COLOR, GAMMA, MERGE, OVL, RDMA, DSI, and DPI
+		 * blocks have separate component platform drivers and initialize their own
+		 * DDP component structure. The others are initialized here.
+		 */
+		if (comp_type == MTK_DISP_AAL ||
+		    comp_type == MTK_DISP_CCORR ||
+		    comp_type == MTK_DISP_COLOR ||
+		    comp_type == MTK_DISP_GAMMA ||
+		    comp_type == MTK_DISP_MERGE ||
+		    comp_type == MTK_DISP_OVL ||
+		    comp_type == MTK_DISP_OVL_2L ||
+		    comp_type == MTK_DISP_RDMA ||
+		    comp_type == MTK_DP_INTF ||
+		    comp_type == MTK_DPI ||
+		    comp_type == MTK_DSI) {
+			dev_info(dev, "Adding component match for %pOF\n",
+				 node);
+			drm_of_component_match_add(dev, &match, component_compare_of,
+						   node);
+		}
+
+		ret = mtk_ddp_comp_init(node, &private->ddp_comp[comp_id], comp_id);
+		if (ret) {
+			of_node_put(node);
+			goto err_node;
+		}
+	}
+
+	if (!private->mutex_node) {
+		dev_err(dev, "Failed to find disp-mutex node\n");
+		ret = -ENODEV;
+		goto err_node;
+	}
+
+	pm_runtime_enable(dev);
+
+	platform_set_drvdata(pdev, private);
+
+	ret = component_master_add_with_match(dev, &mtk_drm_ops, match);
+	if (ret)
+		goto err_pm;
+
+	return 0;
+
+err_pm:
+	pm_runtime_disable(dev);
+err_node:
+	of_node_put(private->mutex_node);
+	for (i = 0; i < DDP_COMPONENT_ID_MAX; i++)
+		of_node_put(private->comp_node[i]);
+	return ret;
+}
+
+static int mtk_drm_remove(struct platform_device *pdev)
+{
+	struct mtk_drm_private *private = platform_get_drvdata(pdev);
+	int i;
+
+	component_master_del(&pdev->dev, &mtk_drm_ops);
+	pm_runtime_disable(&pdev->dev);
+	of_node_put(private->mutex_node);
+	for (i = 0; i < DDP_COMPONENT_ID_MAX; i++)
+		of_node_put(private->comp_node[i]);
+
+	return 0;
+}
+
+static int mtk_drm_sys_prepare(struct device *dev)
+{
+	struct mtk_drm_private *private = dev_get_drvdata(dev);
+	struct drm_device *drm = private->drm;
+
+	return drm_mode_config_helper_suspend(drm);
+}
+
+static void mtk_drm_sys_complete(struct device *dev)
+{
+	struct mtk_drm_private *private = dev_get_drvdata(dev);
+	struct drm_device *drm = private->drm;
+	int ret;
+
+	ret = drm_mode_config_helper_resume(drm);
+	if (ret)
+		dev_err(dev, "Failed to resume\n");
+}
+
+static const struct dev_pm_ops mtk_drm_pm_ops = {
+	.prepare = mtk_drm_sys_prepare,
+	.complete = mtk_drm_sys_complete,
+};
+
+static struct platform_driver mtk_drm_platform_driver = {
+	.probe	= mtk_drm_probe,
+	.remove	= mtk_drm_remove,
+	.driver	= {
+		.name	= "mediatek-drm",
+		.pm     = &mtk_drm_pm_ops,
+	},
+};
+
+static struct platform_driver * const mtk_drm_drivers[] = {
+	&mtk_disp_aal_driver,
+	&mtk_disp_ccorr_driver,
+	&mtk_disp_color_driver,
+	&mtk_disp_gamma_driver,
+	&mtk_disp_merge_driver,
+	&mtk_disp_ovl_driver,
+	&mtk_disp_rdma_driver,
+	&mtk_dpi_driver,
+	&mtk_drm_platform_driver,
+	&mtk_dsi_driver,
+	&mtk_mdp_rdma_driver,
+};
+
+static int __init mtk_drm_init(void)
+{
+	return platform_register_drivers(mtk_drm_drivers,
+					 ARRAY_SIZE(mtk_drm_drivers));
+}
+
+static void __exit mtk_drm_exit(void)
+{
+	platform_unregister_drivers(mtk_drm_drivers,
+				    ARRAY_SIZE(mtk_drm_drivers));
+}
+
+module_init(mtk_drm_init);
+module_exit(mtk_drm_exit);
+
+MODULE_AUTHOR("YT SHEN <yt.shen@mediatek.com>");
+MODULE_DESCRIPTION("Mediatek SoC DRM driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.h b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
new file mode 100644
index 000000000..7b37b5cf9
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#ifndef MTK_DRM_DRV_H
+#define MTK_DRM_DRV_H
+
+#include <linux/io.h>
+#include "mtk_drm_ddp_comp.h"
+
+#define MAX_CRTC	3
+#define MAX_CONNECTOR	2
+
+struct device;
+struct device_node;
+struct drm_crtc;
+struct drm_device;
+struct drm_fb_helper;
+struct drm_property;
+struct regmap;
+
+struct mtk_mmsys_driver_data {
+	const resource_size_t io_start;
+	const enum mtk_ddp_comp_id *main_path;
+	unsigned int main_len;
+	const enum mtk_ddp_comp_id *ext_path;
+	unsigned int ext_len;
+	const enum mtk_ddp_comp_id *third_path;
+	unsigned int third_len;
+
+	bool shadow_register;
+};
+
+struct mtk_mmsys_match_data {
+	unsigned short num_drv_data;
+	const struct mtk_mmsys_driver_data *drv_data[];
+};
+
+struct mtk_drm_private {
+	struct drm_device *drm;
+	struct device *dma_dev;
+
+	unsigned int num_pipes;
+
+	struct device_node *mutex_node;
+	struct device *mutex_dev;
+	struct device *mmsys_dev;
+	struct device_node *comp_node[DDP_COMPONENT_ID_MAX];
+	struct mtk_ddp_comp ddp_comp[DDP_COMPONENT_ID_MAX];
+	const struct mtk_mmsys_driver_data *data;
+	struct drm_atomic_state *suspend_state;
+};
+
+extern struct platform_driver mtk_disp_aal_driver;
+extern struct platform_driver mtk_disp_ccorr_driver;
+extern struct platform_driver mtk_disp_color_driver;
+extern struct platform_driver mtk_disp_gamma_driver;
+extern struct platform_driver mtk_disp_merge_driver;
+extern struct platform_driver mtk_disp_ovl_driver;
+extern struct platform_driver mtk_disp_rdma_driver;
+extern struct platform_driver mtk_dpi_driver;
+extern struct platform_driver mtk_dsi_driver;
+extern struct platform_driver mtk_mdp_rdma_driver;
+
+#endif /* MTK_DRM_DRV_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.c b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
new file mode 100644
index 000000000..fb4f0e336
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#include <linux/dma-buf.h>
+
+#include <drm/drm.h>
+#include <drm/drm_device.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_dma_helper.h>
+#include <drm/drm_prime.h>
+
+#include "mtk_drm_drv.h"
+#include "mtk_drm_gem.h"
+
+static int mtk_drm_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma);
+
+static const struct drm_gem_object_funcs mtk_drm_gem_object_funcs = {
+	.free = mtk_drm_gem_free_object,
+	.get_sg_table = mtk_gem_prime_get_sg_table,
+	.vmap = mtk_drm_gem_prime_vmap,
+	.vunmap = mtk_drm_gem_prime_vunmap,
+	.mmap = mtk_drm_gem_object_mmap,
+	.vm_ops = &drm_gem_dma_vm_ops,
+};
+
+static struct mtk_drm_gem_obj *mtk_drm_gem_init(struct drm_device *dev,
+						unsigned long size)
+{
+	struct mtk_drm_gem_obj *mtk_gem_obj;
+	int ret;
+
+	size = round_up(size, PAGE_SIZE);
+
+	mtk_gem_obj = kzalloc(sizeof(*mtk_gem_obj), GFP_KERNEL);
+	if (!mtk_gem_obj)
+		return ERR_PTR(-ENOMEM);
+
+	mtk_gem_obj->base.funcs = &mtk_drm_gem_object_funcs;
+
+	ret = drm_gem_object_init(dev, &mtk_gem_obj->base, size);
+	if (ret < 0) {
+		DRM_ERROR("failed to initialize gem object\n");
+		kfree(mtk_gem_obj);
+		return ERR_PTR(ret);
+	}
+
+	return mtk_gem_obj;
+}
+
+struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev,
+					   size_t size, bool alloc_kmap)
+{
+	struct mtk_drm_private *priv = dev->dev_private;
+	struct mtk_drm_gem_obj *mtk_gem;
+	struct drm_gem_object *obj;
+	int ret;
+
+	mtk_gem = mtk_drm_gem_init(dev, size);
+	if (IS_ERR(mtk_gem))
+		return ERR_CAST(mtk_gem);
+
+	obj = &mtk_gem->base;
+
+	mtk_gem->dma_attrs = DMA_ATTR_WRITE_COMBINE;
+
+	if (!alloc_kmap)
+		mtk_gem->dma_attrs |= DMA_ATTR_NO_KERNEL_MAPPING;
+
+	mtk_gem->cookie = dma_alloc_attrs(priv->dma_dev, obj->size,
+					  &mtk_gem->dma_addr, GFP_KERNEL,
+					  mtk_gem->dma_attrs);
+	if (!mtk_gem->cookie) {
+		DRM_ERROR("failed to allocate %zx byte dma buffer", obj->size);
+		ret = -ENOMEM;
+		goto err_gem_free;
+	}
+
+	if (alloc_kmap)
+		mtk_gem->kvaddr = mtk_gem->cookie;
+
+	DRM_DEBUG_DRIVER("cookie = %p dma_addr = %pad size = %zu\n",
+			 mtk_gem->cookie, &mtk_gem->dma_addr,
+			 size);
+
+	return mtk_gem;
+
+err_gem_free:
+	drm_gem_object_release(obj);
+	kfree(mtk_gem);
+	return ERR_PTR(ret);
+}
+
+void mtk_drm_gem_free_object(struct drm_gem_object *obj)
+{
+	struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
+	struct mtk_drm_private *priv = obj->dev->dev_private;
+
+	if (mtk_gem->sg)
+		drm_prime_gem_destroy(obj, mtk_gem->sg);
+	else
+		dma_free_attrs(priv->dma_dev, obj->size, mtk_gem->cookie,
+			       mtk_gem->dma_addr, mtk_gem->dma_attrs);
+
+	/* release file pointer to gem object. */
+	drm_gem_object_release(obj);
+
+	kfree(mtk_gem);
+}
+
+int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
+			    struct drm_mode_create_dumb *args)
+{
+	struct mtk_drm_gem_obj *mtk_gem;
+	int ret;
+
+	args->pitch = DIV_ROUND_UP(args->width * args->bpp, 8);
+	args->size = args->pitch * args->height;
+
+	mtk_gem = mtk_drm_gem_create(dev, args->size, false);
+	if (IS_ERR(mtk_gem))
+		return PTR_ERR(mtk_gem);
+
+	/*
+	 * allocate a id of idr table where the obj is registered
+	 * and handle has the id what user can see.
+	 */
+	ret = drm_gem_handle_create(file_priv, &mtk_gem->base, &args->handle);
+	if (ret)
+		goto err_handle_create;
+
+	/* drop reference from allocate - handle holds it now. */
+	drm_gem_object_put(&mtk_gem->base);
+
+	return 0;
+
+err_handle_create:
+	mtk_drm_gem_free_object(&mtk_gem->base);
+	return ret;
+}
+
+static int mtk_drm_gem_object_mmap(struct drm_gem_object *obj,
+				   struct vm_area_struct *vma)
+
+{
+	int ret;
+	struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
+	struct mtk_drm_private *priv = obj->dev->dev_private;
+
+	/*
+	 * Set vm_pgoff (used as a fake buffer offset by DRM) to 0 and map the
+	 * whole buffer from the start.
+	 */
+	vma->vm_pgoff = 0;
+
+	/*
+	 * dma_alloc_attrs() allocated a struct page table for mtk_gem, so clear
+	 * VM_PFNMAP flag that was set by drm_gem_mmap_obj()/drm_gem_mmap().
+	 */
+	vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP;
+	vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+	vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);
+
+	ret = dma_mmap_attrs(priv->dma_dev, vma, mtk_gem->cookie,
+			     mtk_gem->dma_addr, obj->size, mtk_gem->dma_attrs);
+
+	return ret;
+}
+
+/*
+ * Allocate a sg_table for this GEM object.
+ * Note: Both the table's contents, and the sg_table itself must be freed by
+ *       the caller.
+ * Returns a pointer to the newly allocated sg_table, or an ERR_PTR() error.
+ */
+struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj)
+{
+	struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
+	struct mtk_drm_private *priv = obj->dev->dev_private;
+	struct sg_table *sgt;
+	int ret;
+
+	sgt = kzalloc(sizeof(*sgt), GFP_KERNEL);
+	if (!sgt)
+		return ERR_PTR(-ENOMEM);
+
+	ret = dma_get_sgtable_attrs(priv->dma_dev, sgt, mtk_gem->cookie,
+				    mtk_gem->dma_addr, obj->size,
+				    mtk_gem->dma_attrs);
+	if (ret) {
+		DRM_ERROR("failed to allocate sgt, %d\n", ret);
+		kfree(sgt);
+		return ERR_PTR(ret);
+	}
+
+	return sgt;
+}
+
+struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev,
+			struct dma_buf_attachment *attach, struct sg_table *sg)
+{
+	struct mtk_drm_gem_obj *mtk_gem;
+
+	/* check if the entries in the sg_table are contiguous */
+	if (drm_prime_get_contiguous_size(sg) < attach->dmabuf->size) {
+		DRM_ERROR("sg_table is not contiguous");
+		return ERR_PTR(-EINVAL);
+	}
+
+	mtk_gem = mtk_drm_gem_init(dev, attach->dmabuf->size);
+	if (IS_ERR(mtk_gem))
+		return ERR_CAST(mtk_gem);
+
+	mtk_gem->dma_addr = sg_dma_address(sg->sgl);
+	mtk_gem->sg = sg;
+
+	return &mtk_gem->base;
+}
+
+int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map)
+{
+	struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
+	struct sg_table *sgt = NULL;
+	unsigned int npages;
+
+	if (mtk_gem->kvaddr)
+		goto out;
+
+	sgt = mtk_gem_prime_get_sg_table(obj);
+	if (IS_ERR(sgt))
+		return PTR_ERR(sgt);
+
+	npages = obj->size >> PAGE_SHIFT;
+	mtk_gem->pages = kcalloc(npages, sizeof(*mtk_gem->pages), GFP_KERNEL);
+	if (!mtk_gem->pages) {
+		sg_free_table(sgt);
+		kfree(sgt);
+		return -ENOMEM;
+	}
+
+	drm_prime_sg_to_page_array(sgt, mtk_gem->pages, npages);
+
+	mtk_gem->kvaddr = vmap(mtk_gem->pages, npages, VM_MAP,
+			       pgprot_writecombine(PAGE_KERNEL));
+	if (!mtk_gem->kvaddr) {
+		sg_free_table(sgt);
+		kfree(sgt);
+		kfree(mtk_gem->pages);
+		return -ENOMEM;
+	}
+	sg_free_table(sgt);
+	kfree(sgt);
+
+out:
+	iosys_map_set_vaddr(map, mtk_gem->kvaddr);
+
+	return 0;
+}
+
+void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
+			      struct iosys_map *map)
+{
+	struct mtk_drm_gem_obj *mtk_gem = to_mtk_gem_obj(obj);
+	void *vaddr = map->vaddr;
+
+	if (!mtk_gem->pages)
+		return;
+
+	vunmap(vaddr);
+	mtk_gem->kvaddr = NULL;
+	kfree(mtk_gem->pages);
+}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.h b/drivers/gpu/drm/mediatek/mtk_drm_gem.h
new file mode 100644
index 000000000..78f23b07a
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#ifndef _MTK_DRM_GEM_H_
+#define _MTK_DRM_GEM_H_
+
+#include <drm/drm_gem.h>
+
+/*
+ * mtk drm buffer structure.
+ *
+ * @base: a gem object.
+ *	- a new handle to this gem object would be created
+ *	by drm_gem_handle_create().
+ * @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs()
+ * @kvaddr: kernel virtual address of gem buffer.
+ * @dma_addr: dma address of gem buffer.
+ * @dma_attrs: dma attributes of gem buffer.
+ *
+ * P.S. this object would be transferred to user as kms_bo.handle so
+ *	user can access the buffer through kms_bo.handle.
+ */
+struct mtk_drm_gem_obj {
+	struct drm_gem_object	base;
+	void			*cookie;
+	void			*kvaddr;
+	dma_addr_t		dma_addr;
+	unsigned long		dma_attrs;
+	struct sg_table		*sg;
+	struct page		**pages;
+};
+
+#define to_mtk_gem_obj(x)	container_of(x, struct mtk_drm_gem_obj, base)
+
+void mtk_drm_gem_free_object(struct drm_gem_object *gem);
+struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size,
+					   bool alloc_kmap);
+int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
+			    struct drm_mode_create_dumb *args);
+struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj);
+struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev,
+			struct dma_buf_attachment *attach, struct sg_table *sg);
+int mtk_drm_gem_prime_vmap(struct drm_gem_object *obj, struct iosys_map *map);
+void mtk_drm_gem_prime_vunmap(struct drm_gem_object *obj,
+			      struct iosys_map *map);
+
+#endif
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.c b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
new file mode 100644
index 000000000..c4a0203d1
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.c
@@ -0,0 +1,273 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author: CK Hu <ck.hu@mediatek.com>
+ */
+
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_atomic_uapi.h>
+#include <drm/drm_blend.h>
+#include <drm/drm_fourcc.h>
+#include <drm/drm_framebuffer.h>
+#include <drm/drm_gem_atomic_helper.h>
+
+#include "mtk_drm_crtc.h"
+#include "mtk_drm_ddp_comp.h"
+#include "mtk_drm_drv.h"
+#include "mtk_drm_gem.h"
+#include "mtk_drm_plane.h"
+
+static const u32 formats[] = {
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_BGRX8888,
+	DRM_FORMAT_BGRA8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_RGB888,
+	DRM_FORMAT_BGR888,
+	DRM_FORMAT_RGB565,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_YUYV,
+};
+
+static void mtk_plane_reset(struct drm_plane *plane)
+{
+	struct mtk_plane_state *state;
+
+	if (plane->state) {
+		__drm_atomic_helper_plane_destroy_state(plane->state);
+
+		state = to_mtk_plane_state(plane->state);
+		memset(state, 0, sizeof(*state));
+	} else {
+		state = kzalloc(sizeof(*state), GFP_KERNEL);
+		if (!state)
+			return;
+	}
+
+	__drm_atomic_helper_plane_reset(plane, &state->base);
+
+	state->base.plane = plane;
+	state->pending.format = DRM_FORMAT_RGB565;
+}
+
+static struct drm_plane_state *mtk_plane_duplicate_state(struct drm_plane *plane)
+{
+	struct mtk_plane_state *old_state = to_mtk_plane_state(plane->state);
+	struct mtk_plane_state *state;
+
+	state = kmalloc(sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return NULL;
+
+	__drm_atomic_helper_plane_duplicate_state(plane, &state->base);
+
+	WARN_ON(state->base.plane != plane);
+
+	state->pending = old_state->pending;
+
+	return &state->base;
+}
+
+static void mtk_drm_plane_destroy_state(struct drm_plane *plane,
+					struct drm_plane_state *state)
+{
+	__drm_atomic_helper_plane_destroy_state(state);
+	kfree(to_mtk_plane_state(state));
+}
+
+static int mtk_plane_atomic_async_check(struct drm_plane *plane,
+					struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
+										 plane);
+	struct drm_crtc_state *crtc_state;
+	int ret;
+
+	if (plane != new_plane_state->crtc->cursor)
+		return -EINVAL;
+
+	if (!plane->state)
+		return -EINVAL;
+
+	if (!plane->state->fb)
+		return -EINVAL;
+
+	ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
+				       to_mtk_plane_state(new_plane_state));
+	if (ret)
+		return ret;
+
+	if (state)
+		crtc_state = drm_atomic_get_existing_crtc_state(state,
+								new_plane_state->crtc);
+	else /* Special case for asynchronous cursor updates. */
+		crtc_state = new_plane_state->crtc->state;
+
+	return drm_atomic_helper_check_plane_state(plane->state, crtc_state,
+						   DRM_PLANE_NO_SCALING,
+						   DRM_PLANE_NO_SCALING,
+						   true, true);
+}
+
+static void mtk_plane_update_new_state(struct drm_plane_state *new_state,
+				       struct mtk_plane_state *mtk_plane_state)
+{
+	struct drm_framebuffer *fb = new_state->fb;
+	struct drm_gem_object *gem;
+	struct mtk_drm_gem_obj *mtk_gem;
+	unsigned int pitch, format;
+	dma_addr_t addr;
+
+	gem = fb->obj[0];
+	mtk_gem = to_mtk_gem_obj(gem);
+	addr = mtk_gem->dma_addr;
+	pitch = fb->pitches[0];
+	format = fb->format->format;
+
+	addr += (new_state->src.x1 >> 16) * fb->format->cpp[0];
+	addr += (new_state->src.y1 >> 16) * pitch;
+
+	mtk_plane_state->pending.enable = true;
+	mtk_plane_state->pending.pitch = pitch;
+	mtk_plane_state->pending.format = format;
+	mtk_plane_state->pending.addr = addr;
+	mtk_plane_state->pending.x = new_state->dst.x1;
+	mtk_plane_state->pending.y = new_state->dst.y1;
+	mtk_plane_state->pending.width = drm_rect_width(&new_state->dst);
+	mtk_plane_state->pending.height = drm_rect_height(&new_state->dst);
+	mtk_plane_state->pending.rotation = new_state->rotation;
+	mtk_plane_state->pending.color_encoding = new_state->color_encoding;
+}
+
+static void mtk_plane_atomic_async_update(struct drm_plane *plane,
+					  struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+									   plane);
+	struct mtk_plane_state *new_plane_state = to_mtk_plane_state(plane->state);
+
+	plane->state->crtc_x = new_state->crtc_x;
+	plane->state->crtc_y = new_state->crtc_y;
+	plane->state->crtc_h = new_state->crtc_h;
+	plane->state->crtc_w = new_state->crtc_w;
+	plane->state->src_x = new_state->src_x;
+	plane->state->src_y = new_state->src_y;
+	plane->state->src_h = new_state->src_h;
+	plane->state->src_w = new_state->src_w;
+
+	mtk_plane_update_new_state(new_state, new_plane_state);
+	swap(plane->state->fb, new_state->fb);
+	wmb(); /* Make sure the above parameters are set before update */
+	new_plane_state->pending.async_dirty = true;
+	mtk_drm_crtc_async_update(new_state->crtc, plane, state);
+}
+
+static const struct drm_plane_funcs mtk_plane_funcs = {
+	.update_plane = drm_atomic_helper_update_plane,
+	.disable_plane = drm_atomic_helper_disable_plane,
+	.destroy = drm_plane_cleanup,
+	.reset = mtk_plane_reset,
+	.atomic_duplicate_state = mtk_plane_duplicate_state,
+	.atomic_destroy_state = mtk_drm_plane_destroy_state,
+};
+
+static int mtk_plane_atomic_check(struct drm_plane *plane,
+				  struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
+										 plane);
+	struct drm_framebuffer *fb = new_plane_state->fb;
+	struct drm_crtc_state *crtc_state;
+	int ret;
+
+	if (!fb)
+		return 0;
+
+	if (WARN_ON(!new_plane_state->crtc))
+		return 0;
+
+	ret = mtk_drm_crtc_plane_check(new_plane_state->crtc, plane,
+				       to_mtk_plane_state(new_plane_state));
+	if (ret)
+		return ret;
+
+	crtc_state = drm_atomic_get_crtc_state(state,
+					       new_plane_state->crtc);
+	if (IS_ERR(crtc_state))
+		return PTR_ERR(crtc_state);
+
+	return drm_atomic_helper_check_plane_state(new_plane_state,
+						   crtc_state,
+						   DRM_PLANE_NO_SCALING,
+						   DRM_PLANE_NO_SCALING,
+						   true, true);
+}
+
+static void mtk_plane_atomic_disable(struct drm_plane *plane,
+				     struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+									   plane);
+	struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
+	mtk_plane_state->pending.enable = false;
+	wmb(); /* Make sure the above parameter is set before update */
+	mtk_plane_state->pending.dirty = true;
+}
+
+static void mtk_plane_atomic_update(struct drm_plane *plane,
+				    struct drm_atomic_state *state)
+{
+	struct drm_plane_state *new_state = drm_atomic_get_new_plane_state(state,
+									   plane);
+	struct mtk_plane_state *mtk_plane_state = to_mtk_plane_state(new_state);
+
+	if (!new_state->crtc || WARN_ON(!new_state->fb))
+		return;
+
+	if (!new_state->visible) {
+		mtk_plane_atomic_disable(plane, state);
+		return;
+	}
+
+	mtk_plane_update_new_state(new_state, mtk_plane_state);
+	wmb(); /* Make sure the above parameters are set before update */
+	mtk_plane_state->pending.dirty = true;
+}
+
+static const struct drm_plane_helper_funcs mtk_plane_helper_funcs = {
+	.atomic_check = mtk_plane_atomic_check,
+	.atomic_update = mtk_plane_atomic_update,
+	.atomic_disable = mtk_plane_atomic_disable,
+	.atomic_async_update = mtk_plane_atomic_async_update,
+	.atomic_async_check = mtk_plane_atomic_async_check,
+};
+
+int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
+		   unsigned long possible_crtcs, enum drm_plane_type type,
+		   unsigned int supported_rotations)
+{
+	int err;
+
+	err = drm_universal_plane_init(dev, plane, possible_crtcs,
+				       &mtk_plane_funcs, formats,
+				       ARRAY_SIZE(formats), NULL, type, NULL);
+	if (err) {
+		DRM_ERROR("failed to initialize plane\n");
+		return err;
+	}
+
+	if (supported_rotations & ~DRM_MODE_ROTATE_0) {
+		err = drm_plane_create_rotation_property(plane,
+							 DRM_MODE_ROTATE_0,
+							 supported_rotations);
+		if (err)
+			DRM_INFO("Create rotation property failed\n");
+	}
+
+	drm_plane_helper_add(plane, &mtk_plane_helper_funcs);
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_plane.h b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
new file mode 100644
index 000000000..2d5ec66e3
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_drm_plane.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ * Author: CK Hu <ck.hu@mediatek.com>
+ */
+
+#ifndef _MTK_DRM_PLANE_H_
+#define _MTK_DRM_PLANE_H_
+
+#include <drm/drm_crtc.h>
+#include <linux/types.h>
+
+struct mtk_plane_pending_state {
+	bool				config;
+	bool				enable;
+	dma_addr_t			addr;
+	unsigned int			pitch;
+	unsigned int			format;
+	unsigned int			x;
+	unsigned int			y;
+	unsigned int			width;
+	unsigned int			height;
+	unsigned int			rotation;
+	bool				dirty;
+	bool				async_dirty;
+	bool				async_config;
+	enum drm_color_encoding		color_encoding;
+};
+
+struct mtk_plane_state {
+	struct drm_plane_state		base;
+	struct mtk_plane_pending_state	pending;
+};
+
+static inline struct mtk_plane_state *
+to_mtk_plane_state(struct drm_plane_state *state)
+{
+	return container_of(state, struct mtk_plane_state, base);
+}
+
+int mtk_plane_init(struct drm_device *dev, struct drm_plane *plane,
+		   unsigned long possible_crtcs, enum drm_plane_type type,
+		   unsigned int supported_rotations);
+
+#endif
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
new file mode 100644
index 000000000..3e74c7c1b
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -0,0 +1,1230 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2015 MediaTek Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/iopoll.h>
+#include <linux/irq.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include <video/mipi_display.h>
+#include <video/videomode.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_bridge_connector.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_of.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_helper.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_ddp_comp.h"
+
+#define DSI_START		0x00
+
+#define DSI_INTEN		0x08
+
+#define DSI_INTSTA		0x0c
+#define LPRX_RD_RDY_INT_FLAG		BIT(0)
+#define CMD_DONE_INT_FLAG		BIT(1)
+#define TE_RDY_INT_FLAG			BIT(2)
+#define VM_DONE_INT_FLAG		BIT(3)
+#define EXT_TE_RDY_INT_FLAG		BIT(4)
+#define DSI_BUSY			BIT(31)
+
+#define DSI_CON_CTRL		0x10
+#define DSI_RESET			BIT(0)
+#define DSI_EN				BIT(1)
+#define DPHY_RESET			BIT(2)
+
+#define DSI_MODE_CTRL		0x14
+#define MODE				(3)
+#define CMD_MODE			0
+#define SYNC_PULSE_MODE			1
+#define SYNC_EVENT_MODE			2
+#define BURST_MODE			3
+#define FRM_MODE			BIT(16)
+#define MIX_MODE			BIT(17)
+
+#define DSI_TXRX_CTRL		0x18
+#define VC_NUM				BIT(1)
+#define LANE_NUM			(0xf << 2)
+#define DIS_EOT				BIT(6)
+#define NULL_EN				BIT(7)
+#define TE_FREERUN			BIT(8)
+#define EXT_TE_EN			BIT(9)
+#define EXT_TE_EDGE			BIT(10)
+#define MAX_RTN_SIZE			(0xf << 12)
+#define HSTX_CKLP_EN			BIT(16)
+
+#define DSI_PSCTRL		0x1c
+#define DSI_PS_WC			0x3fff
+#define DSI_PS_SEL			(3 << 16)
+#define PACKED_PS_16BIT_RGB565		(0 << 16)
+#define LOOSELY_PS_18BIT_RGB666		(1 << 16)
+#define PACKED_PS_18BIT_RGB666		(2 << 16)
+#define PACKED_PS_24BIT_RGB888		(3 << 16)
+
+#define DSI_VSA_NL		0x20
+#define DSI_VBP_NL		0x24
+#define DSI_VFP_NL		0x28
+#define DSI_VACT_NL		0x2C
+#define DSI_SIZE_CON		0x38
+#define DSI_HSA_WC		0x50
+#define DSI_HBP_WC		0x54
+#define DSI_HFP_WC		0x58
+
+#define DSI_CMDQ_SIZE		0x60
+#define CMDQ_SIZE			0x3f
+
+#define DSI_HSTX_CKL_WC		0x64
+
+#define DSI_RX_DATA0		0x74
+#define DSI_RX_DATA1		0x78
+#define DSI_RX_DATA2		0x7c
+#define DSI_RX_DATA3		0x80
+
+#define DSI_RACK		0x84
+#define RACK				BIT(0)
+
+#define DSI_PHY_LCCON		0x104
+#define LC_HS_TX_EN			BIT(0)
+#define LC_ULPM_EN			BIT(1)
+#define LC_WAKEUP_EN			BIT(2)
+
+#define DSI_PHY_LD0CON		0x108
+#define LD0_HS_TX_EN			BIT(0)
+#define LD0_ULPM_EN			BIT(1)
+#define LD0_WAKEUP_EN			BIT(2)
+
+#define DSI_PHY_TIMECON0	0x110
+#define LPX				(0xff << 0)
+#define HS_PREP				(0xff << 8)
+#define HS_ZERO				(0xff << 16)
+#define HS_TRAIL			(0xff << 24)
+
+#define DSI_PHY_TIMECON1	0x114
+#define TA_GO				(0xff << 0)
+#define TA_SURE				(0xff << 8)
+#define TA_GET				(0xff << 16)
+#define DA_HS_EXIT			(0xff << 24)
+
+#define DSI_PHY_TIMECON2	0x118
+#define CONT_DET			(0xff << 0)
+#define CLK_ZERO			(0xff << 16)
+#define CLK_TRAIL			(0xff << 24)
+
+#define DSI_PHY_TIMECON3	0x11c
+#define CLK_HS_PREP			(0xff << 0)
+#define CLK_HS_POST			(0xff << 8)
+#define CLK_HS_EXIT			(0xff << 16)
+
+#define DSI_VM_CMD_CON		0x130
+#define VM_CMD_EN			BIT(0)
+#define TS_VFP_EN			BIT(5)
+
+#define DSI_SHADOW_DEBUG	0x190U
+#define FORCE_COMMIT			BIT(0)
+#define BYPASS_SHADOW			BIT(1)
+
+#define CONFIG				(0xff << 0)
+#define SHORT_PACKET			0
+#define LONG_PACKET			2
+#define BTA				BIT(2)
+#define DATA_ID				(0xff << 8)
+#define DATA_0				(0xff << 16)
+#define DATA_1				(0xff << 24)
+
+#define NS_TO_CYCLE(n, c)    ((n) / (c) + (((n) % (c)) ? 1 : 0))
+
+#define MTK_DSI_HOST_IS_READ(type) \
+	((type == MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM) || \
+	(type == MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM) || \
+	(type == MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM) || \
+	(type == MIPI_DSI_DCS_READ))
+
+struct mtk_phy_timing {
+	u32 lpx;
+	u32 da_hs_prepare;
+	u32 da_hs_zero;
+	u32 da_hs_trail;
+
+	u32 ta_go;
+	u32 ta_sure;
+	u32 ta_get;
+	u32 da_hs_exit;
+
+	u32 clk_hs_zero;
+	u32 clk_hs_trail;
+
+	u32 clk_hs_prepare;
+	u32 clk_hs_post;
+	u32 clk_hs_exit;
+};
+
+struct phy;
+
+struct mtk_dsi_driver_data {
+	const u32 reg_cmdq_off;
+	bool has_shadow_ctl;
+	bool has_size_ctl;
+};
+
+struct mtk_dsi {
+	struct device *dev;
+	struct mipi_dsi_host host;
+	struct drm_encoder encoder;
+	struct drm_bridge bridge;
+	struct drm_bridge *next_bridge;
+	struct drm_connector *connector;
+	struct phy *phy;
+
+	void __iomem *regs;
+
+	struct clk *engine_clk;
+	struct clk *digital_clk;
+	struct clk *hs_clk;
+
+	u32 data_rate;
+
+	unsigned long mode_flags;
+	enum mipi_dsi_pixel_format format;
+	unsigned int lanes;
+	struct videomode vm;
+	struct mtk_phy_timing phy_timing;
+	int refcount;
+	bool enabled;
+	bool lanes_ready;
+	u32 irq_data;
+	wait_queue_head_t irq_wait_queue;
+	const struct mtk_dsi_driver_data *driver_data;
+};
+
+static inline struct mtk_dsi *bridge_to_dsi(struct drm_bridge *b)
+{
+	return container_of(b, struct mtk_dsi, bridge);
+}
+
+static inline struct mtk_dsi *host_to_dsi(struct mipi_dsi_host *h)
+{
+	return container_of(h, struct mtk_dsi, host);
+}
+
+static void mtk_dsi_mask(struct mtk_dsi *dsi, u32 offset, u32 mask, u32 data)
+{
+	u32 temp = readl(dsi->regs + offset);
+
+	writel((temp & ~mask) | (data & mask), dsi->regs + offset);
+}
+
+static void mtk_dsi_phy_timconfig(struct mtk_dsi *dsi)
+{
+	u32 timcon0, timcon1, timcon2, timcon3;
+	u32 data_rate_mhz = DIV_ROUND_UP(dsi->data_rate, 1000000);
+	struct mtk_phy_timing *timing = &dsi->phy_timing;
+
+	timing->lpx = (60 * data_rate_mhz / (8 * 1000)) + 1;
+	timing->da_hs_prepare = (80 * data_rate_mhz + 4 * 1000) / 8000;
+	timing->da_hs_zero = (170 * data_rate_mhz + 10 * 1000) / 8000 + 1 -
+			     timing->da_hs_prepare;
+	timing->da_hs_trail = timing->da_hs_prepare + 1;
+
+	timing->ta_go = 4 * timing->lpx - 2;
+	timing->ta_sure = timing->lpx + 2;
+	timing->ta_get = 4 * timing->lpx;
+	timing->da_hs_exit = 2 * timing->lpx + 1;
+
+	timing->clk_hs_prepare = 70 * data_rate_mhz / (8 * 1000);
+	timing->clk_hs_post = timing->clk_hs_prepare + 8;
+	timing->clk_hs_trail = timing->clk_hs_prepare;
+	timing->clk_hs_zero = timing->clk_hs_trail * 4;
+	timing->clk_hs_exit = 2 * timing->clk_hs_trail;
+
+	timcon0 = timing->lpx | timing->da_hs_prepare << 8 |
+		  timing->da_hs_zero << 16 | timing->da_hs_trail << 24;
+	timcon1 = timing->ta_go | timing->ta_sure << 8 |
+		  timing->ta_get << 16 | timing->da_hs_exit << 24;
+	timcon2 = 1 << 8 | timing->clk_hs_zero << 16 |
+		  timing->clk_hs_trail << 24;
+	timcon3 = timing->clk_hs_prepare | timing->clk_hs_post << 8 |
+		  timing->clk_hs_exit << 16;
+
+	writel(timcon0, dsi->regs + DSI_PHY_TIMECON0);
+	writel(timcon1, dsi->regs + DSI_PHY_TIMECON1);
+	writel(timcon2, dsi->regs + DSI_PHY_TIMECON2);
+	writel(timcon3, dsi->regs + DSI_PHY_TIMECON3);
+}
+
+static void mtk_dsi_enable(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_EN, DSI_EN);
+}
+
+static void mtk_dsi_disable(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_EN, 0);
+}
+
+static void mtk_dsi_reset_engine(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_RESET, DSI_RESET);
+	mtk_dsi_mask(dsi, DSI_CON_CTRL, DSI_RESET, 0);
+}
+
+static void mtk_dsi_reset_dphy(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_CON_CTRL, DPHY_RESET, DPHY_RESET);
+	mtk_dsi_mask(dsi, DSI_CON_CTRL, DPHY_RESET, 0);
+}
+
+static void mtk_dsi_clk_ulp_mode_enter(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_HS_TX_EN, 0);
+	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_ULPM_EN, 0);
+}
+
+static void mtk_dsi_clk_ulp_mode_leave(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_ULPM_EN, 0);
+	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_WAKEUP_EN, LC_WAKEUP_EN);
+	mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_WAKEUP_EN, 0);
+}
+
+static void mtk_dsi_lane0_ulp_mode_enter(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_HS_TX_EN, 0);
+	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_ULPM_EN, 0);
+}
+
+static void mtk_dsi_lane0_ulp_mode_leave(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_ULPM_EN, 0);
+	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_WAKEUP_EN, LD0_WAKEUP_EN);
+	mtk_dsi_mask(dsi, DSI_PHY_LD0CON, LD0_WAKEUP_EN, 0);
+}
+
+static bool mtk_dsi_clk_hs_state(struct mtk_dsi *dsi)
+{
+	return readl(dsi->regs + DSI_PHY_LCCON) & LC_HS_TX_EN;
+}
+
+static void mtk_dsi_clk_hs_mode(struct mtk_dsi *dsi, bool enter)
+{
+	if (enter && !mtk_dsi_clk_hs_state(dsi))
+		mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_HS_TX_EN, LC_HS_TX_EN);
+	else if (!enter && mtk_dsi_clk_hs_state(dsi))
+		mtk_dsi_mask(dsi, DSI_PHY_LCCON, LC_HS_TX_EN, 0);
+}
+
+static void mtk_dsi_set_mode(struct mtk_dsi *dsi)
+{
+	u32 vid_mode = CMD_MODE;
+
+	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO) {
+		if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST)
+			vid_mode = BURST_MODE;
+		else if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
+			vid_mode = SYNC_PULSE_MODE;
+		else
+			vid_mode = SYNC_EVENT_MODE;
+	}
+
+	writel(vid_mode, dsi->regs + DSI_MODE_CTRL);
+}
+
+static void mtk_dsi_set_vm_cmd(struct mtk_dsi *dsi)
+{
+	mtk_dsi_mask(dsi, DSI_VM_CMD_CON, VM_CMD_EN, VM_CMD_EN);
+	mtk_dsi_mask(dsi, DSI_VM_CMD_CON, TS_VFP_EN, TS_VFP_EN);
+}
+
+static void mtk_dsi_ps_control_vact(struct mtk_dsi *dsi)
+{
+	struct videomode *vm = &dsi->vm;
+	u32 dsi_buf_bpp, ps_wc;
+	u32 ps_bpp_mode;
+
+	if (dsi->format == MIPI_DSI_FMT_RGB565)
+		dsi_buf_bpp = 2;
+	else
+		dsi_buf_bpp = 3;
+
+	ps_wc = vm->hactive * dsi_buf_bpp;
+	ps_bpp_mode = ps_wc;
+
+	switch (dsi->format) {
+	case MIPI_DSI_FMT_RGB888:
+		ps_bpp_mode |= PACKED_PS_24BIT_RGB888;
+		break;
+	case MIPI_DSI_FMT_RGB666:
+		ps_bpp_mode |= PACKED_PS_18BIT_RGB666;
+		break;
+	case MIPI_DSI_FMT_RGB666_PACKED:
+		ps_bpp_mode |= LOOSELY_PS_18BIT_RGB666;
+		break;
+	case MIPI_DSI_FMT_RGB565:
+		ps_bpp_mode |= PACKED_PS_16BIT_RGB565;
+		break;
+	}
+
+	writel(vm->vactive, dsi->regs + DSI_VACT_NL);
+	writel(ps_bpp_mode, dsi->regs + DSI_PSCTRL);
+	writel(ps_wc, dsi->regs + DSI_HSTX_CKL_WC);
+}
+
+static void mtk_dsi_rxtx_control(struct mtk_dsi *dsi)
+{
+	u32 tmp_reg;
+
+	switch (dsi->lanes) {
+	case 1:
+		tmp_reg = 1 << 2;
+		break;
+	case 2:
+		tmp_reg = 3 << 2;
+		break;
+	case 3:
+		tmp_reg = 7 << 2;
+		break;
+	case 4:
+		tmp_reg = 0xf << 2;
+		break;
+	default:
+		tmp_reg = 0xf << 2;
+		break;
+	}
+
+	if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
+		tmp_reg |= HSTX_CKLP_EN;
+
+	if (dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET)
+		tmp_reg |= DIS_EOT;
+
+	writel(tmp_reg, dsi->regs + DSI_TXRX_CTRL);
+}
+
+static void mtk_dsi_ps_control(struct mtk_dsi *dsi)
+{
+	u32 dsi_tmp_buf_bpp;
+	u32 tmp_reg;
+
+	switch (dsi->format) {
+	case MIPI_DSI_FMT_RGB888:
+		tmp_reg = PACKED_PS_24BIT_RGB888;
+		dsi_tmp_buf_bpp = 3;
+		break;
+	case MIPI_DSI_FMT_RGB666:
+		tmp_reg = LOOSELY_PS_18BIT_RGB666;
+		dsi_tmp_buf_bpp = 3;
+		break;
+	case MIPI_DSI_FMT_RGB666_PACKED:
+		tmp_reg = PACKED_PS_18BIT_RGB666;
+		dsi_tmp_buf_bpp = 3;
+		break;
+	case MIPI_DSI_FMT_RGB565:
+		tmp_reg = PACKED_PS_16BIT_RGB565;
+		dsi_tmp_buf_bpp = 2;
+		break;
+	default:
+		tmp_reg = PACKED_PS_24BIT_RGB888;
+		dsi_tmp_buf_bpp = 3;
+		break;
+	}
+
+	tmp_reg += dsi->vm.hactive * dsi_tmp_buf_bpp & DSI_PS_WC;
+	writel(tmp_reg, dsi->regs + DSI_PSCTRL);
+}
+
+static void mtk_dsi_config_vdo_timing(struct mtk_dsi *dsi)
+{
+	u32 horizontal_sync_active_byte;
+	u32 horizontal_backporch_byte;
+	u32 horizontal_frontporch_byte;
+	u32 horizontal_front_back_byte;
+	u32 data_phy_cycles_byte;
+	u32 dsi_tmp_buf_bpp, data_phy_cycles;
+	u32 delta;
+	struct mtk_phy_timing *timing = &dsi->phy_timing;
+
+	struct videomode *vm = &dsi->vm;
+
+	if (dsi->format == MIPI_DSI_FMT_RGB565)
+		dsi_tmp_buf_bpp = 2;
+	else
+		dsi_tmp_buf_bpp = 3;
+
+	writel(vm->vsync_len, dsi->regs + DSI_VSA_NL);
+	writel(vm->vback_porch, dsi->regs + DSI_VBP_NL);
+	writel(vm->vfront_porch, dsi->regs + DSI_VFP_NL);
+	writel(vm->vactive, dsi->regs + DSI_VACT_NL);
+
+	if (dsi->driver_data->has_size_ctl)
+		writel(vm->vactive << 16 | vm->hactive,
+		       dsi->regs + DSI_SIZE_CON);
+
+	horizontal_sync_active_byte = (vm->hsync_len * dsi_tmp_buf_bpp - 10);
+
+	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
+		horizontal_backporch_byte = vm->hback_porch * dsi_tmp_buf_bpp - 10;
+	else
+		horizontal_backporch_byte = (vm->hback_porch + vm->hsync_len) *
+					    dsi_tmp_buf_bpp - 10;
+
+	data_phy_cycles = timing->lpx + timing->da_hs_prepare +
+			  timing->da_hs_zero + timing->da_hs_exit + 3;
+
+	delta = dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST ? 18 : 12;
+	delta += dsi->mode_flags & MIPI_DSI_MODE_NO_EOT_PACKET ? 0 : 2;
+
+	horizontal_frontporch_byte = vm->hfront_porch * dsi_tmp_buf_bpp;
+	horizontal_front_back_byte = horizontal_frontporch_byte + horizontal_backporch_byte;
+	data_phy_cycles_byte = data_phy_cycles * dsi->lanes + delta;
+
+	if (horizontal_front_back_byte > data_phy_cycles_byte) {
+		horizontal_frontporch_byte -= data_phy_cycles_byte *
+					      horizontal_frontporch_byte /
+					      horizontal_front_back_byte;
+
+		horizontal_backporch_byte -= data_phy_cycles_byte *
+					     horizontal_backporch_byte /
+					     horizontal_front_back_byte;
+	} else {
+		DRM_WARN("HFP + HBP less than d-phy, FPS will under 60Hz\n");
+	}
+
+	if ((dsi->mode_flags & MIPI_DSI_HS_PKT_END_ALIGNED) &&
+	    (dsi->lanes == 4)) {
+		horizontal_sync_active_byte =
+			roundup(horizontal_sync_active_byte, dsi->lanes) - 2;
+		horizontal_frontporch_byte =
+			roundup(horizontal_frontporch_byte, dsi->lanes) - 2;
+		horizontal_backporch_byte =
+			roundup(horizontal_backporch_byte, dsi->lanes) - 2;
+		horizontal_backporch_byte -=
+			(vm->hactive * dsi_tmp_buf_bpp + 2) % dsi->lanes;
+	}
+
+	writel(horizontal_sync_active_byte, dsi->regs + DSI_HSA_WC);
+	writel(horizontal_backporch_byte, dsi->regs + DSI_HBP_WC);
+	writel(horizontal_frontporch_byte, dsi->regs + DSI_HFP_WC);
+
+	mtk_dsi_ps_control(dsi);
+}
+
+static void mtk_dsi_start(struct mtk_dsi *dsi)
+{
+	writel(0, dsi->regs + DSI_START);
+	writel(1, dsi->regs + DSI_START);
+}
+
+static void mtk_dsi_stop(struct mtk_dsi *dsi)
+{
+	writel(0, dsi->regs + DSI_START);
+}
+
+static void mtk_dsi_set_cmd_mode(struct mtk_dsi *dsi)
+{
+	writel(CMD_MODE, dsi->regs + DSI_MODE_CTRL);
+}
+
+static void mtk_dsi_set_interrupt_enable(struct mtk_dsi *dsi)
+{
+	u32 inten = LPRX_RD_RDY_INT_FLAG | CMD_DONE_INT_FLAG | VM_DONE_INT_FLAG;
+
+	writel(inten, dsi->regs + DSI_INTEN);
+}
+
+static void mtk_dsi_irq_data_set(struct mtk_dsi *dsi, u32 irq_bit)
+{
+	dsi->irq_data |= irq_bit;
+}
+
+static void mtk_dsi_irq_data_clear(struct mtk_dsi *dsi, u32 irq_bit)
+{
+	dsi->irq_data &= ~irq_bit;
+}
+
+static s32 mtk_dsi_wait_for_irq_done(struct mtk_dsi *dsi, u32 irq_flag,
+				     unsigned int timeout)
+{
+	s32 ret = 0;
+	unsigned long jiffies = msecs_to_jiffies(timeout);
+
+	ret = wait_event_interruptible_timeout(dsi->irq_wait_queue,
+					       dsi->irq_data & irq_flag,
+					       jiffies);
+	if (ret == 0) {
+		DRM_WARN("Wait DSI IRQ(0x%08x) Timeout\n", irq_flag);
+
+		mtk_dsi_enable(dsi);
+		mtk_dsi_reset_engine(dsi);
+	}
+
+	return ret;
+}
+
+static irqreturn_t mtk_dsi_irq(int irq, void *dev_id)
+{
+	struct mtk_dsi *dsi = dev_id;
+	u32 status, tmp;
+	u32 flag = LPRX_RD_RDY_INT_FLAG | CMD_DONE_INT_FLAG | VM_DONE_INT_FLAG;
+
+	status = readl(dsi->regs + DSI_INTSTA) & flag;
+
+	if (status) {
+		do {
+			mtk_dsi_mask(dsi, DSI_RACK, RACK, RACK);
+			tmp = readl(dsi->regs + DSI_INTSTA);
+		} while (tmp & DSI_BUSY);
+
+		mtk_dsi_mask(dsi, DSI_INTSTA, status, 0);
+		mtk_dsi_irq_data_set(dsi, status);
+		wake_up_interruptible(&dsi->irq_wait_queue);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static s32 mtk_dsi_switch_to_cmd_mode(struct mtk_dsi *dsi, u8 irq_flag, u32 t)
+{
+	mtk_dsi_irq_data_clear(dsi, irq_flag);
+	mtk_dsi_set_cmd_mode(dsi);
+
+	if (!mtk_dsi_wait_for_irq_done(dsi, irq_flag, t)) {
+		DRM_ERROR("failed to switch cmd mode\n");
+		return -ETIME;
+	} else {
+		return 0;
+	}
+}
+
+static int mtk_dsi_poweron(struct mtk_dsi *dsi)
+{
+	struct device *dev = dsi->host.dev;
+	int ret;
+	u32 bit_per_pixel;
+
+	if (++dsi->refcount != 1)
+		return 0;
+
+	switch (dsi->format) {
+	case MIPI_DSI_FMT_RGB565:
+		bit_per_pixel = 16;
+		break;
+	case MIPI_DSI_FMT_RGB666_PACKED:
+		bit_per_pixel = 18;
+		break;
+	case MIPI_DSI_FMT_RGB666:
+	case MIPI_DSI_FMT_RGB888:
+	default:
+		bit_per_pixel = 24;
+		break;
+	}
+
+	dsi->data_rate = DIV_ROUND_UP_ULL(dsi->vm.pixelclock * bit_per_pixel,
+					  dsi->lanes);
+
+	ret = clk_set_rate(dsi->hs_clk, dsi->data_rate);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set data rate: %d\n", ret);
+		goto err_refcount;
+	}
+
+	phy_power_on(dsi->phy);
+
+	ret = clk_prepare_enable(dsi->engine_clk);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enable engine clock: %d\n", ret);
+		goto err_phy_power_off;
+	}
+
+	ret = clk_prepare_enable(dsi->digital_clk);
+	if (ret < 0) {
+		dev_err(dev, "Failed to enable digital clock: %d\n", ret);
+		goto err_disable_engine_clk;
+	}
+
+	mtk_dsi_enable(dsi);
+
+	if (dsi->driver_data->has_shadow_ctl)
+		writel(FORCE_COMMIT | BYPASS_SHADOW,
+		       dsi->regs + DSI_SHADOW_DEBUG);
+
+	mtk_dsi_reset_engine(dsi);
+	mtk_dsi_phy_timconfig(dsi);
+
+	mtk_dsi_ps_control_vact(dsi);
+	mtk_dsi_set_vm_cmd(dsi);
+	mtk_dsi_config_vdo_timing(dsi);
+	mtk_dsi_set_interrupt_enable(dsi);
+
+	return 0;
+err_disable_engine_clk:
+	clk_disable_unprepare(dsi->engine_clk);
+err_phy_power_off:
+	phy_power_off(dsi->phy);
+err_refcount:
+	dsi->refcount--;
+	return ret;
+}
+
+static void mtk_dsi_poweroff(struct mtk_dsi *dsi)
+{
+	if (WARN_ON(dsi->refcount == 0))
+		return;
+
+	if (--dsi->refcount != 0)
+		return;
+
+	/*
+	 * mtk_dsi_stop() and mtk_dsi_start() is asymmetric, since
+	 * mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(),
+	 * which needs irq for vblank, and mtk_dsi_stop() will disable irq.
+	 * mtk_dsi_start() needs to be called in mtk_output_dsi_enable(),
+	 * after dsi is fully set.
+	 */
+	mtk_dsi_stop(dsi);
+
+	mtk_dsi_switch_to_cmd_mode(dsi, VM_DONE_INT_FLAG, 500);
+	mtk_dsi_reset_engine(dsi);
+	mtk_dsi_lane0_ulp_mode_enter(dsi);
+	mtk_dsi_clk_ulp_mode_enter(dsi);
+	/* set the lane number as 0 to pull down mipi */
+	writel(0, dsi->regs + DSI_TXRX_CTRL);
+
+	mtk_dsi_disable(dsi);
+
+	clk_disable_unprepare(dsi->engine_clk);
+	clk_disable_unprepare(dsi->digital_clk);
+
+	phy_power_off(dsi->phy);
+
+	dsi->lanes_ready = false;
+}
+
+static void mtk_dsi_lane_ready(struct mtk_dsi *dsi)
+{
+	if (!dsi->lanes_ready) {
+		dsi->lanes_ready = true;
+		mtk_dsi_rxtx_control(dsi);
+		usleep_range(30, 100);
+		mtk_dsi_reset_dphy(dsi);
+		mtk_dsi_clk_ulp_mode_leave(dsi);
+		mtk_dsi_lane0_ulp_mode_leave(dsi);
+		mtk_dsi_clk_hs_mode(dsi, 0);
+		usleep_range(1000, 3000);
+		/* The reaction time after pulling up the mipi signal for dsi_rx */
+	}
+}
+
+static void mtk_output_dsi_enable(struct mtk_dsi *dsi)
+{
+	if (dsi->enabled)
+		return;
+
+	mtk_dsi_lane_ready(dsi);
+	mtk_dsi_set_mode(dsi);
+	mtk_dsi_clk_hs_mode(dsi, 1);
+
+	mtk_dsi_start(dsi);
+
+	dsi->enabled = true;
+}
+
+static void mtk_output_dsi_disable(struct mtk_dsi *dsi)
+{
+	if (!dsi->enabled)
+		return;
+
+	dsi->enabled = false;
+}
+
+static int mtk_dsi_bridge_attach(struct drm_bridge *bridge,
+				 enum drm_bridge_attach_flags flags)
+{
+	struct mtk_dsi *dsi = bridge_to_dsi(bridge);
+
+	/* Attach the panel or bridge to the dsi bridge */
+	return drm_bridge_attach(bridge->encoder, dsi->next_bridge,
+				 &dsi->bridge, flags);
+}
+
+static void mtk_dsi_bridge_mode_set(struct drm_bridge *bridge,
+				    const struct drm_display_mode *mode,
+				    const struct drm_display_mode *adjusted)
+{
+	struct mtk_dsi *dsi = bridge_to_dsi(bridge);
+
+	drm_display_mode_to_videomode(adjusted, &dsi->vm);
+}
+
+static void mtk_dsi_bridge_atomic_disable(struct drm_bridge *bridge,
+					  struct drm_bridge_state *old_bridge_state)
+{
+	struct mtk_dsi *dsi = bridge_to_dsi(bridge);
+
+	mtk_output_dsi_disable(dsi);
+}
+
+static void mtk_dsi_bridge_atomic_enable(struct drm_bridge *bridge,
+					 struct drm_bridge_state *old_bridge_state)
+{
+	struct mtk_dsi *dsi = bridge_to_dsi(bridge);
+
+	if (dsi->refcount == 0)
+		return;
+
+	mtk_output_dsi_enable(dsi);
+}
+
+static void mtk_dsi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
+					     struct drm_bridge_state *old_bridge_state)
+{
+	struct mtk_dsi *dsi = bridge_to_dsi(bridge);
+	int ret;
+
+	ret = mtk_dsi_poweron(dsi);
+	if (ret < 0)
+		DRM_ERROR("failed to power on dsi\n");
+}
+
+static void mtk_dsi_bridge_atomic_post_disable(struct drm_bridge *bridge,
+					       struct drm_bridge_state *old_bridge_state)
+{
+	struct mtk_dsi *dsi = bridge_to_dsi(bridge);
+
+	mtk_dsi_poweroff(dsi);
+}
+
+static const struct drm_bridge_funcs mtk_dsi_bridge_funcs = {
+	.attach = mtk_dsi_bridge_attach,
+	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+	.atomic_disable = mtk_dsi_bridge_atomic_disable,
+	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+	.atomic_enable = mtk_dsi_bridge_atomic_enable,
+	.atomic_pre_enable = mtk_dsi_bridge_atomic_pre_enable,
+	.atomic_post_disable = mtk_dsi_bridge_atomic_post_disable,
+	.atomic_reset = drm_atomic_helper_bridge_reset,
+	.mode_set = mtk_dsi_bridge_mode_set,
+};
+
+void mtk_dsi_ddp_start(struct device *dev)
+{
+	struct mtk_dsi *dsi = dev_get_drvdata(dev);
+
+	mtk_dsi_poweron(dsi);
+}
+
+void mtk_dsi_ddp_stop(struct device *dev)
+{
+	struct mtk_dsi *dsi = dev_get_drvdata(dev);
+
+	mtk_dsi_poweroff(dsi);
+}
+
+static int mtk_dsi_encoder_init(struct drm_device *drm, struct mtk_dsi *dsi)
+{
+	int ret;
+
+	ret = drm_simple_encoder_init(drm, &dsi->encoder,
+				      DRM_MODE_ENCODER_DSI);
+	if (ret) {
+		DRM_ERROR("Failed to encoder init to drm\n");
+		return ret;
+	}
+
+	dsi->encoder.possible_crtcs = mtk_drm_find_possible_crtc_by_comp(drm, dsi->host.dev);
+
+	ret = drm_bridge_attach(&dsi->encoder, &dsi->bridge, NULL,
+				DRM_BRIDGE_ATTACH_NO_CONNECTOR);
+	if (ret)
+		goto err_cleanup_encoder;
+
+	dsi->connector = drm_bridge_connector_init(drm, &dsi->encoder);
+	if (IS_ERR(dsi->connector)) {
+		DRM_ERROR("Unable to create bridge connector\n");
+		ret = PTR_ERR(dsi->connector);
+		goto err_cleanup_encoder;
+	}
+	drm_connector_attach_encoder(dsi->connector, &dsi->encoder);
+
+	return 0;
+
+err_cleanup_encoder:
+	drm_encoder_cleanup(&dsi->encoder);
+	return ret;
+}
+
+static int mtk_dsi_bind(struct device *dev, struct device *master, void *data)
+{
+	int ret;
+	struct drm_device *drm = data;
+	struct mtk_dsi *dsi = dev_get_drvdata(dev);
+
+	ret = mtk_dsi_encoder_init(drm, dsi);
+	if (ret)
+		return ret;
+
+	return device_reset_optional(dev);
+}
+
+static void mtk_dsi_unbind(struct device *dev, struct device *master,
+			   void *data)
+{
+	struct mtk_dsi *dsi = dev_get_drvdata(dev);
+
+	drm_encoder_cleanup(&dsi->encoder);
+}
+
+static const struct component_ops mtk_dsi_component_ops = {
+	.bind = mtk_dsi_bind,
+	.unbind = mtk_dsi_unbind,
+};
+
+static int mtk_dsi_host_attach(struct mipi_dsi_host *host,
+			       struct mipi_dsi_device *device)
+{
+	struct mtk_dsi *dsi = host_to_dsi(host);
+	struct device *dev = host->dev;
+	int ret;
+
+	dsi->lanes = device->lanes;
+	dsi->format = device->format;
+	dsi->mode_flags = device->mode_flags;
+	dsi->next_bridge = devm_drm_of_get_bridge(dev, dev->of_node, 0, 0);
+	if (IS_ERR(dsi->next_bridge))
+		return PTR_ERR(dsi->next_bridge);
+
+	drm_bridge_add(&dsi->bridge);
+
+	ret = component_add(host->dev, &mtk_dsi_component_ops);
+	if (ret) {
+		DRM_ERROR("failed to add dsi_host component: %d\n", ret);
+		drm_bridge_remove(&dsi->bridge);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int mtk_dsi_host_detach(struct mipi_dsi_host *host,
+			       struct mipi_dsi_device *device)
+{
+	struct mtk_dsi *dsi = host_to_dsi(host);
+
+	component_del(host->dev, &mtk_dsi_component_ops);
+	drm_bridge_remove(&dsi->bridge);
+	return 0;
+}
+
+static void mtk_dsi_wait_for_idle(struct mtk_dsi *dsi)
+{
+	int ret;
+	u32 val;
+
+	ret = readl_poll_timeout(dsi->regs + DSI_INTSTA, val, !(val & DSI_BUSY),
+				 4, 2000000);
+	if (ret) {
+		DRM_WARN("polling dsi wait not busy timeout!\n");
+
+		mtk_dsi_enable(dsi);
+		mtk_dsi_reset_engine(dsi);
+	}
+}
+
+static u32 mtk_dsi_recv_cnt(u8 type, u8 *read_data)
+{
+	switch (type) {
+	case MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_1BYTE:
+	case MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_1BYTE:
+		return 1;
+	case MIPI_DSI_RX_GENERIC_SHORT_READ_RESPONSE_2BYTE:
+	case MIPI_DSI_RX_DCS_SHORT_READ_RESPONSE_2BYTE:
+		return 2;
+	case MIPI_DSI_RX_GENERIC_LONG_READ_RESPONSE:
+	case MIPI_DSI_RX_DCS_LONG_READ_RESPONSE:
+		return read_data[1] + read_data[2] * 16;
+	case MIPI_DSI_RX_ACKNOWLEDGE_AND_ERROR_REPORT:
+		DRM_INFO("type is 0x02, try again\n");
+		break;
+	default:
+		DRM_INFO("type(0x%x) not recognized\n", type);
+		break;
+	}
+
+	return 0;
+}
+
+static void mtk_dsi_cmdq(struct mtk_dsi *dsi, const struct mipi_dsi_msg *msg)
+{
+	const char *tx_buf = msg->tx_buf;
+	u8 config, cmdq_size, cmdq_off, type = msg->type;
+	u32 reg_val, cmdq_mask, i;
+	u32 reg_cmdq_off = dsi->driver_data->reg_cmdq_off;
+
+	if (MTK_DSI_HOST_IS_READ(type))
+		config = BTA;
+	else
+		config = (msg->tx_len > 2) ? LONG_PACKET : SHORT_PACKET;
+
+	if (msg->tx_len > 2) {
+		cmdq_size = 1 + (msg->tx_len + 3) / 4;
+		cmdq_off = 4;
+		cmdq_mask = CONFIG | DATA_ID | DATA_0 | DATA_1;
+		reg_val = (msg->tx_len << 16) | (type << 8) | config;
+	} else {
+		cmdq_size = 1;
+		cmdq_off = 2;
+		cmdq_mask = CONFIG | DATA_ID;
+		reg_val = (type << 8) | config;
+	}
+
+	for (i = 0; i < msg->tx_len; i++)
+		mtk_dsi_mask(dsi, (reg_cmdq_off + cmdq_off + i) & (~0x3U),
+			     (0xffUL << (((i + cmdq_off) & 3U) * 8U)),
+			     tx_buf[i] << (((i + cmdq_off) & 3U) * 8U));
+
+	mtk_dsi_mask(dsi, reg_cmdq_off, cmdq_mask, reg_val);
+	mtk_dsi_mask(dsi, DSI_CMDQ_SIZE, CMDQ_SIZE, cmdq_size);
+}
+
+static ssize_t mtk_dsi_host_send_cmd(struct mtk_dsi *dsi,
+				     const struct mipi_dsi_msg *msg, u8 flag)
+{
+	mtk_dsi_wait_for_idle(dsi);
+	mtk_dsi_irq_data_clear(dsi, flag);
+	mtk_dsi_cmdq(dsi, msg);
+	mtk_dsi_start(dsi);
+
+	if (!mtk_dsi_wait_for_irq_done(dsi, flag, 2000))
+		return -ETIME;
+	else
+		return 0;
+}
+
+static ssize_t mtk_dsi_host_transfer(struct mipi_dsi_host *host,
+				     const struct mipi_dsi_msg *msg)
+{
+	struct mtk_dsi *dsi = host_to_dsi(host);
+	u32 recv_cnt, i;
+	u8 read_data[16];
+	void *src_addr;
+	u8 irq_flag = CMD_DONE_INT_FLAG;
+	u32 dsi_mode;
+	int ret;
+
+	dsi_mode = readl(dsi->regs + DSI_MODE_CTRL);
+	if (dsi_mode & MODE) {
+		mtk_dsi_stop(dsi);
+		ret = mtk_dsi_switch_to_cmd_mode(dsi, VM_DONE_INT_FLAG, 500);
+		if (ret)
+			goto restore_dsi_mode;
+	}
+
+	if (MTK_DSI_HOST_IS_READ(msg->type))
+		irq_flag |= LPRX_RD_RDY_INT_FLAG;
+
+	mtk_dsi_lane_ready(dsi);
+
+	ret = mtk_dsi_host_send_cmd(dsi, msg, irq_flag);
+	if (ret)
+		goto restore_dsi_mode;
+
+	if (!MTK_DSI_HOST_IS_READ(msg->type)) {
+		recv_cnt = 0;
+		goto restore_dsi_mode;
+	}
+
+	if (!msg->rx_buf) {
+		DRM_ERROR("dsi receive buffer size may be NULL\n");
+		ret = -EINVAL;
+		goto restore_dsi_mode;
+	}
+
+	for (i = 0; i < 16; i++)
+		*(read_data + i) = readb(dsi->regs + DSI_RX_DATA0 + i);
+
+	recv_cnt = mtk_dsi_recv_cnt(read_data[0], read_data);
+
+	if (recv_cnt > 2)
+		src_addr = &read_data[4];
+	else
+		src_addr = &read_data[1];
+
+	if (recv_cnt > 10)
+		recv_cnt = 10;
+
+	if (recv_cnt > msg->rx_len)
+		recv_cnt = msg->rx_len;
+
+	if (recv_cnt)
+		memcpy(msg->rx_buf, src_addr, recv_cnt);
+
+	DRM_INFO("dsi get %d byte data from the panel address(0x%x)\n",
+		 recv_cnt, *((u8 *)(msg->tx_buf)));
+
+restore_dsi_mode:
+	if (dsi_mode & MODE) {
+		mtk_dsi_set_mode(dsi);
+		mtk_dsi_start(dsi);
+	}
+
+	return ret < 0 ? ret : recv_cnt;
+}
+
+static const struct mipi_dsi_host_ops mtk_dsi_ops = {
+	.attach = mtk_dsi_host_attach,
+	.detach = mtk_dsi_host_detach,
+	.transfer = mtk_dsi_host_transfer,
+};
+
+static int mtk_dsi_probe(struct platform_device *pdev)
+{
+	struct mtk_dsi *dsi;
+	struct device *dev = &pdev->dev;
+	struct resource *regs;
+	int irq_num;
+	int ret;
+
+	dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
+	if (!dsi)
+		return -ENOMEM;
+
+	dsi->host.ops = &mtk_dsi_ops;
+	dsi->host.dev = dev;
+	ret = mipi_dsi_host_register(&dsi->host);
+	if (ret < 0) {
+		dev_err(dev, "failed to register DSI host: %d\n", ret);
+		return ret;
+	}
+
+	dsi->driver_data = of_device_get_match_data(dev);
+
+	dsi->engine_clk = devm_clk_get(dev, "engine");
+	if (IS_ERR(dsi->engine_clk)) {
+		ret = PTR_ERR(dsi->engine_clk);
+
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get engine clock: %d\n", ret);
+		goto err_unregister_host;
+	}
+
+	dsi->digital_clk = devm_clk_get(dev, "digital");
+	if (IS_ERR(dsi->digital_clk)) {
+		ret = PTR_ERR(dsi->digital_clk);
+
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get digital clock: %d\n", ret);
+		goto err_unregister_host;
+	}
+
+	dsi->hs_clk = devm_clk_get(dev, "hs");
+	if (IS_ERR(dsi->hs_clk)) {
+		ret = PTR_ERR(dsi->hs_clk);
+		dev_err(dev, "Failed to get hs clock: %d\n", ret);
+		goto err_unregister_host;
+	}
+
+	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dsi->regs = devm_ioremap_resource(dev, regs);
+	if (IS_ERR(dsi->regs)) {
+		ret = PTR_ERR(dsi->regs);
+		dev_err(dev, "Failed to ioremap memory: %d\n", ret);
+		goto err_unregister_host;
+	}
+
+	dsi->phy = devm_phy_get(dev, "dphy");
+	if (IS_ERR(dsi->phy)) {
+		ret = PTR_ERR(dsi->phy);
+		dev_err(dev, "Failed to get MIPI-DPHY: %d\n", ret);
+		goto err_unregister_host;
+	}
+
+	irq_num = platform_get_irq(pdev, 0);
+	if (irq_num < 0) {
+		ret = irq_num;
+		goto err_unregister_host;
+	}
+
+	ret = devm_request_irq(&pdev->dev, irq_num, mtk_dsi_irq,
+			       IRQF_TRIGGER_NONE, dev_name(&pdev->dev), dsi);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to request mediatek dsi irq\n");
+		goto err_unregister_host;
+	}
+
+	init_waitqueue_head(&dsi->irq_wait_queue);
+
+	platform_set_drvdata(pdev, dsi);
+
+	dsi->bridge.funcs = &mtk_dsi_bridge_funcs;
+	dsi->bridge.of_node = dev->of_node;
+	dsi->bridge.type = DRM_MODE_CONNECTOR_DSI;
+
+	return 0;
+
+err_unregister_host:
+	mipi_dsi_host_unregister(&dsi->host);
+	return ret;
+}
+
+static int mtk_dsi_remove(struct platform_device *pdev)
+{
+	struct mtk_dsi *dsi = platform_get_drvdata(pdev);
+
+	mtk_output_dsi_disable(dsi);
+	mipi_dsi_host_unregister(&dsi->host);
+
+	return 0;
+}
+
+static const struct mtk_dsi_driver_data mt8173_dsi_driver_data = {
+	.reg_cmdq_off = 0x200,
+};
+
+static const struct mtk_dsi_driver_data mt2701_dsi_driver_data = {
+	.reg_cmdq_off = 0x180,
+};
+
+static const struct mtk_dsi_driver_data mt8183_dsi_driver_data = {
+	.reg_cmdq_off = 0x200,
+	.has_shadow_ctl = true,
+	.has_size_ctl = true,
+};
+
+static const struct mtk_dsi_driver_data mt8186_dsi_driver_data = {
+	.reg_cmdq_off = 0xd00,
+	.has_shadow_ctl = true,
+	.has_size_ctl = true,
+};
+
+static const struct of_device_id mtk_dsi_of_match[] = {
+	{ .compatible = "mediatek,mt2701-dsi",
+	  .data = &mt2701_dsi_driver_data },
+	{ .compatible = "mediatek,mt8173-dsi",
+	  .data = &mt8173_dsi_driver_data },
+	{ .compatible = "mediatek,mt8183-dsi",
+	  .data = &mt8183_dsi_driver_data },
+	{ .compatible = "mediatek,mt8186-dsi",
+	  .data = &mt8186_dsi_driver_data },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, mtk_dsi_of_match);
+
+struct platform_driver mtk_dsi_driver = {
+	.probe = mtk_dsi_probe,
+	.remove = mtk_dsi_remove,
+	.driver = {
+		.name = "mtk-dsi",
+		.of_match_table = mtk_dsi_of_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
new file mode 100644
index 000000000..6e8f99554
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -0,0 +1,1840 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+
+#include <linux/arm-smccc.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/hdmi.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <sound/hdmi-codec.h>
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+
+#include "mtk_cec.h"
+#include "mtk_hdmi.h"
+#include "mtk_hdmi_regs.h"
+
+#define NCTS_BYTES	7
+
+enum mtk_hdmi_clk_id {
+	MTK_HDMI_CLK_HDMI_PIXEL,
+	MTK_HDMI_CLK_HDMI_PLL,
+	MTK_HDMI_CLK_AUD_BCLK,
+	MTK_HDMI_CLK_AUD_SPDIF,
+	MTK_HDMI_CLK_COUNT
+};
+
+enum hdmi_aud_input_type {
+	HDMI_AUD_INPUT_I2S = 0,
+	HDMI_AUD_INPUT_SPDIF,
+};
+
+enum hdmi_aud_i2s_fmt {
+	HDMI_I2S_MODE_RJT_24BIT = 0,
+	HDMI_I2S_MODE_RJT_16BIT,
+	HDMI_I2S_MODE_LJT_24BIT,
+	HDMI_I2S_MODE_LJT_16BIT,
+	HDMI_I2S_MODE_I2S_24BIT,
+	HDMI_I2S_MODE_I2S_16BIT
+};
+
+enum hdmi_aud_mclk {
+	HDMI_AUD_MCLK_128FS,
+	HDMI_AUD_MCLK_192FS,
+	HDMI_AUD_MCLK_256FS,
+	HDMI_AUD_MCLK_384FS,
+	HDMI_AUD_MCLK_512FS,
+	HDMI_AUD_MCLK_768FS,
+	HDMI_AUD_MCLK_1152FS,
+};
+
+enum hdmi_aud_channel_type {
+	HDMI_AUD_CHAN_TYPE_1_0 = 0,
+	HDMI_AUD_CHAN_TYPE_1_1,
+	HDMI_AUD_CHAN_TYPE_2_0,
+	HDMI_AUD_CHAN_TYPE_2_1,
+	HDMI_AUD_CHAN_TYPE_3_0,
+	HDMI_AUD_CHAN_TYPE_3_1,
+	HDMI_AUD_CHAN_TYPE_4_0,
+	HDMI_AUD_CHAN_TYPE_4_1,
+	HDMI_AUD_CHAN_TYPE_5_0,
+	HDMI_AUD_CHAN_TYPE_5_1,
+	HDMI_AUD_CHAN_TYPE_6_0,
+	HDMI_AUD_CHAN_TYPE_6_1,
+	HDMI_AUD_CHAN_TYPE_7_0,
+	HDMI_AUD_CHAN_TYPE_7_1,
+	HDMI_AUD_CHAN_TYPE_3_0_LRS,
+	HDMI_AUD_CHAN_TYPE_3_1_LRS,
+	HDMI_AUD_CHAN_TYPE_4_0_CLRS,
+	HDMI_AUD_CHAN_TYPE_4_1_CLRS,
+	HDMI_AUD_CHAN_TYPE_6_1_CS,
+	HDMI_AUD_CHAN_TYPE_6_1_CH,
+	HDMI_AUD_CHAN_TYPE_6_1_OH,
+	HDMI_AUD_CHAN_TYPE_6_1_CHR,
+	HDMI_AUD_CHAN_TYPE_7_1_LH_RH,
+	HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR,
+	HDMI_AUD_CHAN_TYPE_7_1_LC_RC,
+	HDMI_AUD_CHAN_TYPE_7_1_LW_RW,
+	HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD,
+	HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS,
+	HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS,
+	HDMI_AUD_CHAN_TYPE_7_1_CS_CH,
+	HDMI_AUD_CHAN_TYPE_7_1_CS_OH,
+	HDMI_AUD_CHAN_TYPE_7_1_CS_CHR,
+	HDMI_AUD_CHAN_TYPE_7_1_CH_OH,
+	HDMI_AUD_CHAN_TYPE_7_1_CH_CHR,
+	HDMI_AUD_CHAN_TYPE_7_1_OH_CHR,
+	HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR,
+	HDMI_AUD_CHAN_TYPE_6_0_CS,
+	HDMI_AUD_CHAN_TYPE_6_0_CH,
+	HDMI_AUD_CHAN_TYPE_6_0_OH,
+	HDMI_AUD_CHAN_TYPE_6_0_CHR,
+	HDMI_AUD_CHAN_TYPE_7_0_LH_RH,
+	HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR,
+	HDMI_AUD_CHAN_TYPE_7_0_LC_RC,
+	HDMI_AUD_CHAN_TYPE_7_0_LW_RW,
+	HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD,
+	HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS,
+	HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS,
+	HDMI_AUD_CHAN_TYPE_7_0_CS_CH,
+	HDMI_AUD_CHAN_TYPE_7_0_CS_OH,
+	HDMI_AUD_CHAN_TYPE_7_0_CS_CHR,
+	HDMI_AUD_CHAN_TYPE_7_0_CH_OH,
+	HDMI_AUD_CHAN_TYPE_7_0_CH_CHR,
+	HDMI_AUD_CHAN_TYPE_7_0_OH_CHR,
+	HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR,
+	HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS,
+	HDMI_AUD_CHAN_TYPE_UNKNOWN = 0xFF
+};
+
+enum hdmi_aud_channel_swap_type {
+	HDMI_AUD_SWAP_LR,
+	HDMI_AUD_SWAP_LFE_CC,
+	HDMI_AUD_SWAP_LSRS,
+	HDMI_AUD_SWAP_RLS_RRS,
+	HDMI_AUD_SWAP_LR_STATUS,
+};
+
+struct hdmi_audio_param {
+	enum hdmi_audio_coding_type aud_codec;
+	enum hdmi_audio_sample_size aud_sampe_size;
+	enum hdmi_aud_input_type aud_input_type;
+	enum hdmi_aud_i2s_fmt aud_i2s_fmt;
+	enum hdmi_aud_mclk aud_mclk;
+	enum hdmi_aud_channel_type aud_input_chan_type;
+	struct hdmi_codec_params codec_params;
+};
+
+struct mtk_hdmi_conf {
+	bool tz_disabled;
+	bool cea_modes_only;
+	unsigned long max_mode_clock;
+};
+
+struct mtk_hdmi {
+	struct drm_bridge bridge;
+	struct drm_bridge *next_bridge;
+	struct drm_connector *curr_conn;/* current connector (only valid when 'enabled') */
+	struct device *dev;
+	const struct mtk_hdmi_conf *conf;
+	struct phy *phy;
+	struct device *cec_dev;
+	struct i2c_adapter *ddc_adpt;
+	struct clk *clk[MTK_HDMI_CLK_COUNT];
+	struct drm_display_mode mode;
+	bool dvi_mode;
+	u32 min_clock;
+	u32 max_clock;
+	u32 max_hdisplay;
+	u32 max_vdisplay;
+	u32 ibias;
+	u32 ibias_up;
+	struct regmap *sys_regmap;
+	unsigned int sys_offset;
+	void __iomem *regs;
+	enum hdmi_colorspace csp;
+	struct hdmi_audio_param aud_param;
+	bool audio_enable;
+	bool powered;
+	bool enabled;
+	hdmi_codec_plugged_cb plugged_cb;
+	struct device *codec_dev;
+	struct mutex update_plugged_status_lock;
+};
+
+static inline struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b)
+{
+	return container_of(b, struct mtk_hdmi, bridge);
+}
+
+static u32 mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset)
+{
+	return readl(hdmi->regs + offset);
+}
+
+static void mtk_hdmi_write(struct mtk_hdmi *hdmi, u32 offset, u32 val)
+{
+	writel(val, hdmi->regs + offset);
+}
+
+static void mtk_hdmi_clear_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
+{
+	void __iomem *reg = hdmi->regs + offset;
+	u32 tmp;
+
+	tmp = readl(reg);
+	tmp &= ~bits;
+	writel(tmp, reg);
+}
+
+static void mtk_hdmi_set_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
+{
+	void __iomem *reg = hdmi->regs + offset;
+	u32 tmp;
+
+	tmp = readl(reg);
+	tmp |= bits;
+	writel(tmp, reg);
+}
+
+static void mtk_hdmi_mask(struct mtk_hdmi *hdmi, u32 offset, u32 val, u32 mask)
+{
+	void __iomem *reg = hdmi->regs + offset;
+	u32 tmp;
+
+	tmp = readl(reg);
+	tmp = (tmp & ~mask) | (val & mask);
+	writel(tmp, reg);
+}
+
+static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
+{
+	mtk_hdmi_mask(hdmi, VIDEO_CFG_4, black ? GEN_RGB : NORMAL_PATH,
+		      VIDEO_SOURCE_SEL);
+}
+
+static void mtk_hdmi_hw_make_reg_writable(struct mtk_hdmi *hdmi, bool enable)
+{
+	struct arm_smccc_res res;
+
+	/*
+	 * MT8173 HDMI hardware has an output control bit to enable/disable HDMI
+	 * output. This bit can only be controlled in ARM supervisor mode.
+	 * The ARM trusted firmware provides an API for the HDMI driver to set
+	 * this control bit to enable HDMI output in supervisor mode.
+	 */
+	if (hdmi->conf && hdmi->conf->tz_disabled)
+		regmap_update_bits(hdmi->sys_regmap,
+				   hdmi->sys_offset + HDMI_SYS_CFG20,
+				   0x80008005, enable ? 0x80000005 : 0x8000);
+	else
+		arm_smccc_smc(MTK_SIP_SET_AUTHORIZED_SECURE_REG, 0x14000904,
+			      0x80000000, 0, 0, 0, 0, 0, &res);
+
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20,
+			   HDMI_PCLK_FREE_RUN, enable ? HDMI_PCLK_FREE_RUN : 0);
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C,
+			   HDMI_ON | ANLG_ON, enable ? (HDMI_ON | ANLG_ON) : 0);
+}
+
+static void mtk_hdmi_hw_1p4_version_enable(struct mtk_hdmi *hdmi, bool enable)
+{
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20,
+			   HDMI2P0_EN, enable ? 0 : HDMI2P0_EN);
+}
+
+static void mtk_hdmi_hw_aud_mute(struct mtk_hdmi *hdmi)
+{
+	mtk_hdmi_set_bits(hdmi, GRL_AUDIO_CFG, AUDIO_ZERO);
+}
+
+static void mtk_hdmi_hw_aud_unmute(struct mtk_hdmi *hdmi)
+{
+	mtk_hdmi_clear_bits(hdmi, GRL_AUDIO_CFG, AUDIO_ZERO);
+}
+
+static void mtk_hdmi_hw_reset(struct mtk_hdmi *hdmi)
+{
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C,
+			   HDMI_RST, HDMI_RST);
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C,
+			   HDMI_RST, 0);
+	mtk_hdmi_clear_bits(hdmi, GRL_CFG3, CFG3_CONTROL_PACKET_DELAY);
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG1C,
+			   ANLG_ON, ANLG_ON);
+}
+
+static void mtk_hdmi_hw_enable_notice(struct mtk_hdmi *hdmi, bool enable_notice)
+{
+	mtk_hdmi_mask(hdmi, GRL_CFG2, enable_notice ? CFG2_NOTICE_EN : 0,
+		      CFG2_NOTICE_EN);
+}
+
+static void mtk_hdmi_hw_write_int_mask(struct mtk_hdmi *hdmi, u32 int_mask)
+{
+	mtk_hdmi_write(hdmi, GRL_INT_MASK, int_mask);
+}
+
+static void mtk_hdmi_hw_enable_dvi_mode(struct mtk_hdmi *hdmi, bool enable)
+{
+	mtk_hdmi_mask(hdmi, GRL_CFG1, enable ? CFG1_DVI : 0, CFG1_DVI);
+}
+
+static void mtk_hdmi_hw_send_info_frame(struct mtk_hdmi *hdmi, u8 *buffer,
+					u8 len)
+{
+	u32 ctrl_reg = GRL_CTRL;
+	int i;
+	u8 *frame_data;
+	enum hdmi_infoframe_type frame_type;
+	u8 frame_ver;
+	u8 frame_len;
+	u8 checksum;
+	int ctrl_frame_en = 0;
+
+	frame_type = *buffer++;
+	frame_ver = *buffer++;
+	frame_len = *buffer++;
+	checksum = *buffer++;
+	frame_data = buffer;
+
+	dev_dbg(hdmi->dev,
+		"frame_type:0x%x,frame_ver:0x%x,frame_len:0x%x,checksum:0x%x\n",
+		frame_type, frame_ver, frame_len, checksum);
+
+	switch (frame_type) {
+	case HDMI_INFOFRAME_TYPE_AVI:
+		ctrl_frame_en = CTRL_AVI_EN;
+		ctrl_reg = GRL_CTRL;
+		break;
+	case HDMI_INFOFRAME_TYPE_SPD:
+		ctrl_frame_en = CTRL_SPD_EN;
+		ctrl_reg = GRL_CTRL;
+		break;
+	case HDMI_INFOFRAME_TYPE_AUDIO:
+		ctrl_frame_en = CTRL_AUDIO_EN;
+		ctrl_reg = GRL_CTRL;
+		break;
+	case HDMI_INFOFRAME_TYPE_VENDOR:
+		ctrl_frame_en = VS_EN;
+		ctrl_reg = GRL_ACP_ISRC_CTRL;
+		break;
+	default:
+		dev_err(hdmi->dev, "Unknown infoframe type %d\n", frame_type);
+		return;
+	}
+	mtk_hdmi_clear_bits(hdmi, ctrl_reg, ctrl_frame_en);
+	mtk_hdmi_write(hdmi, GRL_INFOFRM_TYPE, frame_type);
+	mtk_hdmi_write(hdmi, GRL_INFOFRM_VER, frame_ver);
+	mtk_hdmi_write(hdmi, GRL_INFOFRM_LNG, frame_len);
+
+	mtk_hdmi_write(hdmi, GRL_IFM_PORT, checksum);
+	for (i = 0; i < frame_len; i++)
+		mtk_hdmi_write(hdmi, GRL_IFM_PORT, frame_data[i]);
+
+	mtk_hdmi_set_bits(hdmi, ctrl_reg, ctrl_frame_en);
+}
+
+static void mtk_hdmi_hw_send_aud_packet(struct mtk_hdmi *hdmi, bool enable)
+{
+	mtk_hdmi_mask(hdmi, GRL_SHIFT_R2, enable ? 0 : AUDIO_PACKET_OFF,
+		      AUDIO_PACKET_OFF);
+}
+
+static void mtk_hdmi_hw_config_sys(struct mtk_hdmi *hdmi)
+{
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20,
+			   HDMI_OUT_FIFO_EN | MHL_MODE_ON, 0);
+	usleep_range(2000, 4000);
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20,
+			   HDMI_OUT_FIFO_EN | MHL_MODE_ON, HDMI_OUT_FIFO_EN);
+}
+
+static void mtk_hdmi_hw_set_deep_color_mode(struct mtk_hdmi *hdmi)
+{
+	regmap_update_bits(hdmi->sys_regmap, hdmi->sys_offset + HDMI_SYS_CFG20,
+			   DEEP_COLOR_MODE_MASK | DEEP_COLOR_EN,
+			   COLOR_8BIT_MODE);
+}
+
+static void mtk_hdmi_hw_send_av_mute(struct mtk_hdmi *hdmi)
+{
+	mtk_hdmi_clear_bits(hdmi, GRL_CFG4, CTRL_AVMUTE);
+	usleep_range(2000, 4000);
+	mtk_hdmi_set_bits(hdmi, GRL_CFG4, CTRL_AVMUTE);
+}
+
+static void mtk_hdmi_hw_send_av_unmute(struct mtk_hdmi *hdmi)
+{
+	mtk_hdmi_mask(hdmi, GRL_CFG4, CFG4_AV_UNMUTE_EN,
+		      CFG4_AV_UNMUTE_EN | CFG4_AV_UNMUTE_SET);
+	usleep_range(2000, 4000);
+	mtk_hdmi_mask(hdmi, GRL_CFG4, CFG4_AV_UNMUTE_SET,
+		      CFG4_AV_UNMUTE_EN | CFG4_AV_UNMUTE_SET);
+}
+
+static void mtk_hdmi_hw_ncts_enable(struct mtk_hdmi *hdmi, bool on)
+{
+	mtk_hdmi_mask(hdmi, GRL_CTS_CTRL, on ? 0 : CTS_CTRL_SOFT,
+		      CTS_CTRL_SOFT);
+}
+
+static void mtk_hdmi_hw_ncts_auto_write_enable(struct mtk_hdmi *hdmi,
+					       bool enable)
+{
+	mtk_hdmi_mask(hdmi, GRL_CTS_CTRL, enable ? NCTS_WRI_ANYTIME : 0,
+		      NCTS_WRI_ANYTIME);
+}
+
+static void mtk_hdmi_hw_msic_setting(struct mtk_hdmi *hdmi,
+				     struct drm_display_mode *mode)
+{
+	mtk_hdmi_clear_bits(hdmi, GRL_CFG4, CFG4_MHL_MODE);
+
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE &&
+	    mode->clock == 74250 &&
+	    mode->vdisplay == 1080)
+		mtk_hdmi_clear_bits(hdmi, GRL_CFG2, CFG2_MHL_DE_SEL);
+	else
+		mtk_hdmi_set_bits(hdmi, GRL_CFG2, CFG2_MHL_DE_SEL);
+}
+
+static void mtk_hdmi_hw_aud_set_channel_swap(struct mtk_hdmi *hdmi,
+					enum hdmi_aud_channel_swap_type swap)
+{
+	u8 swap_bit;
+
+	switch (swap) {
+	case HDMI_AUD_SWAP_LR:
+		swap_bit = LR_SWAP;
+		break;
+	case HDMI_AUD_SWAP_LFE_CC:
+		swap_bit = LFE_CC_SWAP;
+		break;
+	case HDMI_AUD_SWAP_LSRS:
+		swap_bit = LSRS_SWAP;
+		break;
+	case HDMI_AUD_SWAP_RLS_RRS:
+		swap_bit = RLS_RRS_SWAP;
+		break;
+	case HDMI_AUD_SWAP_LR_STATUS:
+		swap_bit = LR_STATUS_SWAP;
+		break;
+	default:
+		swap_bit = LFE_CC_SWAP;
+		break;
+	}
+	mtk_hdmi_mask(hdmi, GRL_CH_SWAP, swap_bit, 0xff);
+}
+
+static void mtk_hdmi_hw_aud_set_bit_num(struct mtk_hdmi *hdmi,
+					enum hdmi_audio_sample_size bit_num)
+{
+	u32 val;
+
+	switch (bit_num) {
+	case HDMI_AUDIO_SAMPLE_SIZE_16:
+		val = AOUT_16BIT;
+		break;
+	case HDMI_AUDIO_SAMPLE_SIZE_20:
+		val = AOUT_20BIT;
+		break;
+	case HDMI_AUDIO_SAMPLE_SIZE_24:
+	case HDMI_AUDIO_SAMPLE_SIZE_STREAM:
+		val = AOUT_24BIT;
+		break;
+	}
+
+	mtk_hdmi_mask(hdmi, GRL_AOUT_CFG, val, AOUT_BNUM_SEL_MASK);
+}
+
+static void mtk_hdmi_hw_aud_set_i2s_fmt(struct mtk_hdmi *hdmi,
+					enum hdmi_aud_i2s_fmt i2s_fmt)
+{
+	u32 val;
+
+	val = mtk_hdmi_read(hdmi, GRL_CFG0);
+	val &= ~(CFG0_W_LENGTH_MASK | CFG0_I2S_MODE_MASK);
+
+	switch (i2s_fmt) {
+	case HDMI_I2S_MODE_RJT_24BIT:
+		val |= CFG0_I2S_MODE_RTJ | CFG0_W_LENGTH_24BIT;
+		break;
+	case HDMI_I2S_MODE_RJT_16BIT:
+		val |= CFG0_I2S_MODE_RTJ | CFG0_W_LENGTH_16BIT;
+		break;
+	case HDMI_I2S_MODE_LJT_24BIT:
+	default:
+		val |= CFG0_I2S_MODE_LTJ | CFG0_W_LENGTH_24BIT;
+		break;
+	case HDMI_I2S_MODE_LJT_16BIT:
+		val |= CFG0_I2S_MODE_LTJ | CFG0_W_LENGTH_16BIT;
+		break;
+	case HDMI_I2S_MODE_I2S_24BIT:
+		val |= CFG0_I2S_MODE_I2S | CFG0_W_LENGTH_24BIT;
+		break;
+	case HDMI_I2S_MODE_I2S_16BIT:
+		val |= CFG0_I2S_MODE_I2S | CFG0_W_LENGTH_16BIT;
+		break;
+	}
+	mtk_hdmi_write(hdmi, GRL_CFG0, val);
+}
+
+static void mtk_hdmi_hw_audio_config(struct mtk_hdmi *hdmi, bool dst)
+{
+	const u8 mask = HIGH_BIT_RATE | DST_NORMAL_DOUBLE | SACD_DST | DSD_SEL;
+	u8 val;
+
+	/* Disable high bitrate, set DST packet normal/double */
+	mtk_hdmi_clear_bits(hdmi, GRL_AOUT_CFG, HIGH_BIT_RATE_PACKET_ALIGN);
+
+	if (dst)
+		val = DST_NORMAL_DOUBLE | SACD_DST;
+	else
+		val = 0;
+
+	mtk_hdmi_mask(hdmi, GRL_AUDIO_CFG, val, mask);
+}
+
+static void mtk_hdmi_hw_aud_set_i2s_chan_num(struct mtk_hdmi *hdmi,
+					enum hdmi_aud_channel_type channel_type,
+					u8 channel_count)
+{
+	unsigned int ch_switch;
+	u8 i2s_uv;
+
+	ch_switch = CH_SWITCH(7, 7) | CH_SWITCH(6, 6) |
+		    CH_SWITCH(5, 5) | CH_SWITCH(4, 4) |
+		    CH_SWITCH(3, 3) | CH_SWITCH(1, 2) |
+		    CH_SWITCH(2, 1) | CH_SWITCH(0, 0);
+
+	if (channel_count == 2) {
+		i2s_uv = I2S_UV_CH_EN(0);
+	} else if (channel_count == 3 || channel_count == 4) {
+		if (channel_count == 4 &&
+		    (channel_type == HDMI_AUD_CHAN_TYPE_3_0_LRS ||
+		    channel_type == HDMI_AUD_CHAN_TYPE_4_0))
+			i2s_uv = I2S_UV_CH_EN(2) | I2S_UV_CH_EN(0);
+		else
+			i2s_uv = I2S_UV_CH_EN(3) | I2S_UV_CH_EN(2);
+	} else if (channel_count == 6 || channel_count == 5) {
+		if (channel_count == 6 &&
+		    channel_type != HDMI_AUD_CHAN_TYPE_5_1 &&
+		    channel_type != HDMI_AUD_CHAN_TYPE_4_1_CLRS) {
+			i2s_uv = I2S_UV_CH_EN(3) | I2S_UV_CH_EN(2) |
+				 I2S_UV_CH_EN(1) | I2S_UV_CH_EN(0);
+		} else {
+			i2s_uv = I2S_UV_CH_EN(2) | I2S_UV_CH_EN(1) |
+				 I2S_UV_CH_EN(0);
+		}
+	} else if (channel_count == 8 || channel_count == 7) {
+		i2s_uv = I2S_UV_CH_EN(3) | I2S_UV_CH_EN(2) |
+			 I2S_UV_CH_EN(1) | I2S_UV_CH_EN(0);
+	} else {
+		i2s_uv = I2S_UV_CH_EN(0);
+	}
+
+	mtk_hdmi_write(hdmi, GRL_CH_SW0, ch_switch & 0xff);
+	mtk_hdmi_write(hdmi, GRL_CH_SW1, (ch_switch >> 8) & 0xff);
+	mtk_hdmi_write(hdmi, GRL_CH_SW2, (ch_switch >> 16) & 0xff);
+	mtk_hdmi_write(hdmi, GRL_I2S_UV, i2s_uv);
+}
+
+static void mtk_hdmi_hw_aud_set_input_type(struct mtk_hdmi *hdmi,
+					   enum hdmi_aud_input_type input_type)
+{
+	u32 val;
+
+	val = mtk_hdmi_read(hdmi, GRL_CFG1);
+	if (input_type == HDMI_AUD_INPUT_I2S &&
+	    (val & CFG1_SPDIF) == CFG1_SPDIF) {
+		val &= ~CFG1_SPDIF;
+	} else if (input_type == HDMI_AUD_INPUT_SPDIF &&
+		(val & CFG1_SPDIF) == 0) {
+		val |= CFG1_SPDIF;
+	}
+	mtk_hdmi_write(hdmi, GRL_CFG1, val);
+}
+
+static void mtk_hdmi_hw_aud_set_channel_status(struct mtk_hdmi *hdmi,
+					       u8 *channel_status)
+{
+	int i;
+
+	for (i = 0; i < 5; i++) {
+		mtk_hdmi_write(hdmi, GRL_I2S_C_STA0 + i * 4, channel_status[i]);
+		mtk_hdmi_write(hdmi, GRL_L_STATUS_0 + i * 4, channel_status[i]);
+		mtk_hdmi_write(hdmi, GRL_R_STATUS_0 + i * 4, channel_status[i]);
+	}
+	for (; i < 24; i++) {
+		mtk_hdmi_write(hdmi, GRL_L_STATUS_0 + i * 4, 0);
+		mtk_hdmi_write(hdmi, GRL_R_STATUS_0 + i * 4, 0);
+	}
+}
+
+static void mtk_hdmi_hw_aud_src_reenable(struct mtk_hdmi *hdmi)
+{
+	u32 val;
+
+	val = mtk_hdmi_read(hdmi, GRL_MIX_CTRL);
+	if (val & MIX_CTRL_SRC_EN) {
+		val &= ~MIX_CTRL_SRC_EN;
+		mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val);
+		usleep_range(255, 512);
+		val |= MIX_CTRL_SRC_EN;
+		mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val);
+	}
+}
+
+static void mtk_hdmi_hw_aud_src_disable(struct mtk_hdmi *hdmi)
+{
+	u32 val;
+
+	val = mtk_hdmi_read(hdmi, GRL_MIX_CTRL);
+	val &= ~MIX_CTRL_SRC_EN;
+	mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val);
+	mtk_hdmi_write(hdmi, GRL_SHIFT_L1, 0x00);
+}
+
+static void mtk_hdmi_hw_aud_set_mclk(struct mtk_hdmi *hdmi,
+				     enum hdmi_aud_mclk mclk)
+{
+	u32 val;
+
+	val = mtk_hdmi_read(hdmi, GRL_CFG5);
+	val &= CFG5_CD_RATIO_MASK;
+
+	switch (mclk) {
+	case HDMI_AUD_MCLK_128FS:
+		val |= CFG5_FS128;
+		break;
+	case HDMI_AUD_MCLK_256FS:
+		val |= CFG5_FS256;
+		break;
+	case HDMI_AUD_MCLK_384FS:
+		val |= CFG5_FS384;
+		break;
+	case HDMI_AUD_MCLK_512FS:
+		val |= CFG5_FS512;
+		break;
+	case HDMI_AUD_MCLK_768FS:
+		val |= CFG5_FS768;
+		break;
+	default:
+		val |= CFG5_FS256;
+		break;
+	}
+	mtk_hdmi_write(hdmi, GRL_CFG5, val);
+}
+
+struct hdmi_acr_n {
+	unsigned int clock;
+	unsigned int n[3];
+};
+
+/* Recommended N values from HDMI specification, tables 7-1 to 7-3 */
+static const struct hdmi_acr_n hdmi_rec_n_table[] = {
+	/* Clock, N: 32kHz 44.1kHz 48kHz */
+	{  25175, {  4576,  7007,  6864 } },
+	{  74176, { 11648, 17836, 11648 } },
+	{ 148352, { 11648,  8918,  5824 } },
+	{ 296703, {  5824,  4459,  5824 } },
+	{ 297000, {  3072,  4704,  5120 } },
+	{      0, {  4096,  6272,  6144 } }, /* all other TMDS clocks */
+};
+
+/**
+ * hdmi_recommended_n() - Return N value recommended by HDMI specification
+ * @freq: audio sample rate in Hz
+ * @clock: rounded TMDS clock in kHz
+ */
+static unsigned int hdmi_recommended_n(unsigned int freq, unsigned int clock)
+{
+	const struct hdmi_acr_n *recommended;
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(hdmi_rec_n_table) - 1; i++) {
+		if (clock == hdmi_rec_n_table[i].clock)
+			break;
+	}
+	recommended = hdmi_rec_n_table + i;
+
+	switch (freq) {
+	case 32000:
+		return recommended->n[0];
+	case 44100:
+		return recommended->n[1];
+	case 48000:
+		return recommended->n[2];
+	case 88200:
+		return recommended->n[1] * 2;
+	case 96000:
+		return recommended->n[2] * 2;
+	case 176400:
+		return recommended->n[1] * 4;
+	case 192000:
+		return recommended->n[2] * 4;
+	default:
+		return (128 * freq) / 1000;
+	}
+}
+
+static unsigned int hdmi_mode_clock_to_hz(unsigned int clock)
+{
+	switch (clock) {
+	case 25175:
+		return 25174825;	/* 25.2/1.001 MHz */
+	case 74176:
+		return 74175824;	/* 74.25/1.001 MHz */
+	case 148352:
+		return 148351648;	/* 148.5/1.001 MHz */
+	case 296703:
+		return 296703297;	/* 297/1.001 MHz */
+	default:
+		return clock * 1000;
+	}
+}
+
+static unsigned int hdmi_expected_cts(unsigned int audio_sample_rate,
+				      unsigned int tmds_clock, unsigned int n)
+{
+	return DIV_ROUND_CLOSEST_ULL((u64)hdmi_mode_clock_to_hz(tmds_clock) * n,
+				     128 * audio_sample_rate);
+}
+
+static void do_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi, unsigned int n,
+				    unsigned int cts)
+{
+	unsigned char val[NCTS_BYTES];
+	int i;
+
+	mtk_hdmi_write(hdmi, GRL_NCTS, 0);
+	mtk_hdmi_write(hdmi, GRL_NCTS, 0);
+	mtk_hdmi_write(hdmi, GRL_NCTS, 0);
+	memset(val, 0, sizeof(val));
+
+	val[0] = (cts >> 24) & 0xff;
+	val[1] = (cts >> 16) & 0xff;
+	val[2] = (cts >> 8) & 0xff;
+	val[3] = cts & 0xff;
+
+	val[4] = (n >> 16) & 0xff;
+	val[5] = (n >> 8) & 0xff;
+	val[6] = n & 0xff;
+
+	for (i = 0; i < NCTS_BYTES; i++)
+		mtk_hdmi_write(hdmi, GRL_NCTS, val[i]);
+}
+
+static void mtk_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi,
+				     unsigned int sample_rate,
+				     unsigned int clock)
+{
+	unsigned int n, cts;
+
+	n = hdmi_recommended_n(sample_rate, clock);
+	cts = hdmi_expected_cts(sample_rate, clock, n);
+
+	dev_dbg(hdmi->dev, "%s: sample_rate=%u, clock=%d, cts=%u, n=%u\n",
+		__func__, sample_rate, clock, n, cts);
+
+	mtk_hdmi_mask(hdmi, DUMMY_304, AUDIO_I2S_NCTS_SEL_64,
+		      AUDIO_I2S_NCTS_SEL);
+	do_hdmi_hw_aud_set_ncts(hdmi, n, cts);
+}
+
+static u8 mtk_hdmi_aud_get_chnl_count(enum hdmi_aud_channel_type channel_type)
+{
+	switch (channel_type) {
+	case HDMI_AUD_CHAN_TYPE_1_0:
+	case HDMI_AUD_CHAN_TYPE_1_1:
+	case HDMI_AUD_CHAN_TYPE_2_0:
+		return 2;
+	case HDMI_AUD_CHAN_TYPE_2_1:
+	case HDMI_AUD_CHAN_TYPE_3_0:
+		return 3;
+	case HDMI_AUD_CHAN_TYPE_3_1:
+	case HDMI_AUD_CHAN_TYPE_4_0:
+	case HDMI_AUD_CHAN_TYPE_3_0_LRS:
+		return 4;
+	case HDMI_AUD_CHAN_TYPE_4_1:
+	case HDMI_AUD_CHAN_TYPE_5_0:
+	case HDMI_AUD_CHAN_TYPE_3_1_LRS:
+	case HDMI_AUD_CHAN_TYPE_4_0_CLRS:
+		return 5;
+	case HDMI_AUD_CHAN_TYPE_5_1:
+	case HDMI_AUD_CHAN_TYPE_6_0:
+	case HDMI_AUD_CHAN_TYPE_4_1_CLRS:
+	case HDMI_AUD_CHAN_TYPE_6_0_CS:
+	case HDMI_AUD_CHAN_TYPE_6_0_CH:
+	case HDMI_AUD_CHAN_TYPE_6_0_OH:
+	case HDMI_AUD_CHAN_TYPE_6_0_CHR:
+		return 6;
+	case HDMI_AUD_CHAN_TYPE_6_1:
+	case HDMI_AUD_CHAN_TYPE_6_1_CS:
+	case HDMI_AUD_CHAN_TYPE_6_1_CH:
+	case HDMI_AUD_CHAN_TYPE_6_1_OH:
+	case HDMI_AUD_CHAN_TYPE_6_1_CHR:
+	case HDMI_AUD_CHAN_TYPE_7_0:
+	case HDMI_AUD_CHAN_TYPE_7_0_LH_RH:
+	case HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR:
+	case HDMI_AUD_CHAN_TYPE_7_0_LC_RC:
+	case HDMI_AUD_CHAN_TYPE_7_0_LW_RW:
+	case HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD:
+	case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS:
+	case HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS:
+	case HDMI_AUD_CHAN_TYPE_7_0_CS_CH:
+	case HDMI_AUD_CHAN_TYPE_7_0_CS_OH:
+	case HDMI_AUD_CHAN_TYPE_7_0_CS_CHR:
+	case HDMI_AUD_CHAN_TYPE_7_0_CH_OH:
+	case HDMI_AUD_CHAN_TYPE_7_0_CH_CHR:
+	case HDMI_AUD_CHAN_TYPE_7_0_OH_CHR:
+	case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR:
+	case HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS:
+		return 7;
+	case HDMI_AUD_CHAN_TYPE_7_1:
+	case HDMI_AUD_CHAN_TYPE_7_1_LH_RH:
+	case HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR:
+	case HDMI_AUD_CHAN_TYPE_7_1_LC_RC:
+	case HDMI_AUD_CHAN_TYPE_7_1_LW_RW:
+	case HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD:
+	case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS:
+	case HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS:
+	case HDMI_AUD_CHAN_TYPE_7_1_CS_CH:
+	case HDMI_AUD_CHAN_TYPE_7_1_CS_OH:
+	case HDMI_AUD_CHAN_TYPE_7_1_CS_CHR:
+	case HDMI_AUD_CHAN_TYPE_7_1_CH_OH:
+	case HDMI_AUD_CHAN_TYPE_7_1_CH_CHR:
+	case HDMI_AUD_CHAN_TYPE_7_1_OH_CHR:
+	case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR:
+		return 8;
+	default:
+		return 2;
+	}
+}
+
+static int mtk_hdmi_video_change_vpll(struct mtk_hdmi *hdmi, u32 clock)
+{
+	unsigned long rate;
+	int ret;
+
+	/* The DPI driver already should have set TVDPLL to the correct rate */
+	ret = clk_set_rate(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL], clock);
+	if (ret) {
+		dev_err(hdmi->dev, "Failed to set PLL to %u Hz: %d\n", clock,
+			ret);
+		return ret;
+	}
+
+	rate = clk_get_rate(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
+
+	if (DIV_ROUND_CLOSEST(rate, 1000) != DIV_ROUND_CLOSEST(clock, 1000))
+		dev_warn(hdmi->dev, "Want PLL %u Hz, got %lu Hz\n", clock,
+			 rate);
+	else
+		dev_dbg(hdmi->dev, "Want PLL %u Hz, got %lu Hz\n", clock, rate);
+
+	mtk_hdmi_hw_config_sys(hdmi);
+	mtk_hdmi_hw_set_deep_color_mode(hdmi);
+	return 0;
+}
+
+static void mtk_hdmi_video_set_display_mode(struct mtk_hdmi *hdmi,
+					    struct drm_display_mode *mode)
+{
+	mtk_hdmi_hw_reset(hdmi);
+	mtk_hdmi_hw_enable_notice(hdmi, true);
+	mtk_hdmi_hw_write_int_mask(hdmi, 0xff);
+	mtk_hdmi_hw_enable_dvi_mode(hdmi, hdmi->dvi_mode);
+	mtk_hdmi_hw_ncts_auto_write_enable(hdmi, true);
+
+	mtk_hdmi_hw_msic_setting(hdmi, mode);
+}
+
+
+static void mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
+{
+	enum hdmi_aud_channel_type chan_type;
+	u8 chan_count;
+	bool dst;
+
+	mtk_hdmi_hw_aud_set_channel_swap(hdmi, HDMI_AUD_SWAP_LFE_CC);
+	mtk_hdmi_set_bits(hdmi, GRL_MIX_CTRL, MIX_CTRL_FLAT);
+
+	if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF &&
+	    hdmi->aud_param.aud_codec == HDMI_AUDIO_CODING_TYPE_DST) {
+		mtk_hdmi_hw_aud_set_bit_num(hdmi, HDMI_AUDIO_SAMPLE_SIZE_24);
+	} else if (hdmi->aud_param.aud_i2s_fmt == HDMI_I2S_MODE_LJT_24BIT) {
+		hdmi->aud_param.aud_i2s_fmt = HDMI_I2S_MODE_LJT_16BIT;
+	}
+
+	mtk_hdmi_hw_aud_set_i2s_fmt(hdmi, hdmi->aud_param.aud_i2s_fmt);
+	mtk_hdmi_hw_aud_set_bit_num(hdmi, HDMI_AUDIO_SAMPLE_SIZE_24);
+
+	dst = ((hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF) &&
+	       (hdmi->aud_param.aud_codec == HDMI_AUDIO_CODING_TYPE_DST));
+	mtk_hdmi_hw_audio_config(hdmi, dst);
+
+	if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF)
+		chan_type = HDMI_AUD_CHAN_TYPE_2_0;
+	else
+		chan_type = hdmi->aud_param.aud_input_chan_type;
+	chan_count = mtk_hdmi_aud_get_chnl_count(chan_type);
+	mtk_hdmi_hw_aud_set_i2s_chan_num(hdmi, chan_type, chan_count);
+	mtk_hdmi_hw_aud_set_input_type(hdmi, hdmi->aud_param.aud_input_type);
+}
+
+static int mtk_hdmi_aud_set_src(struct mtk_hdmi *hdmi,
+				struct drm_display_mode *display_mode)
+{
+	unsigned int sample_rate = hdmi->aud_param.codec_params.sample_rate;
+
+	mtk_hdmi_hw_ncts_enable(hdmi, false);
+	mtk_hdmi_hw_aud_src_disable(hdmi);
+	mtk_hdmi_clear_bits(hdmi, GRL_CFG2, CFG2_ACLK_INV);
+
+	if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_I2S) {
+		switch (sample_rate) {
+		case 32000:
+		case 44100:
+		case 48000:
+		case 88200:
+		case 96000:
+			break;
+		default:
+			return -EINVAL;
+		}
+		mtk_hdmi_hw_aud_set_mclk(hdmi, hdmi->aud_param.aud_mclk);
+	} else {
+		switch (sample_rate) {
+		case 32000:
+		case 44100:
+		case 48000:
+			break;
+		default:
+			return -EINVAL;
+		}
+		mtk_hdmi_hw_aud_set_mclk(hdmi, HDMI_AUD_MCLK_128FS);
+	}
+
+	mtk_hdmi_hw_aud_set_ncts(hdmi, sample_rate, display_mode->clock);
+
+	mtk_hdmi_hw_aud_src_reenable(hdmi);
+	return 0;
+}
+
+static int mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
+				      struct drm_display_mode *display_mode)
+{
+	mtk_hdmi_hw_aud_mute(hdmi);
+	mtk_hdmi_hw_send_aud_packet(hdmi, false);
+
+	mtk_hdmi_aud_set_input(hdmi);
+	mtk_hdmi_aud_set_src(hdmi, display_mode);
+	mtk_hdmi_hw_aud_set_channel_status(hdmi,
+			hdmi->aud_param.codec_params.iec.status);
+
+	usleep_range(50, 100);
+
+	mtk_hdmi_hw_ncts_enable(hdmi, true);
+	mtk_hdmi_hw_send_aud_packet(hdmi, true);
+	mtk_hdmi_hw_aud_unmute(hdmi);
+	return 0;
+}
+
+static int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi,
+					struct drm_display_mode *mode)
+{
+	struct hdmi_avi_infoframe frame;
+	u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
+	ssize_t err;
+
+	err = drm_hdmi_avi_infoframe_from_display_mode(&frame,
+						       hdmi->curr_conn, mode);
+	if (err < 0) {
+		dev_err(hdmi->dev,
+			"Failed to get AVI infoframe from mode: %zd\n", err);
+		return err;
+	}
+
+	err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to pack AVI infoframe: %zd\n", err);
+		return err;
+	}
+
+	mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer));
+	return 0;
+}
+
+static int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi,
+					const char *vendor,
+					const char *product)
+{
+	struct hdmi_spd_infoframe frame;
+	u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_SPD_INFOFRAME_SIZE];
+	ssize_t err;
+
+	err = hdmi_spd_infoframe_init(&frame, vendor, product);
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to initialize SPD infoframe: %zd\n",
+			err);
+		return err;
+	}
+
+	err = hdmi_spd_infoframe_pack(&frame, buffer, sizeof(buffer));
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to pack SDP infoframe: %zd\n", err);
+		return err;
+	}
+
+	mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer));
+	return 0;
+}
+
+static int mtk_hdmi_setup_audio_infoframe(struct mtk_hdmi *hdmi)
+{
+	struct hdmi_audio_infoframe frame;
+	u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
+	ssize_t err;
+
+	err = hdmi_audio_infoframe_init(&frame);
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to setup audio infoframe: %zd\n",
+			err);
+		return err;
+	}
+
+	frame.coding_type = HDMI_AUDIO_CODING_TYPE_STREAM;
+	frame.sample_frequency = HDMI_AUDIO_SAMPLE_FREQUENCY_STREAM;
+	frame.sample_size = HDMI_AUDIO_SAMPLE_SIZE_STREAM;
+	frame.channels = mtk_hdmi_aud_get_chnl_count(
+					hdmi->aud_param.aud_input_chan_type);
+
+	err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to pack audio infoframe: %zd\n",
+			err);
+		return err;
+	}
+
+	mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer));
+	return 0;
+}
+
+static int mtk_hdmi_setup_vendor_specific_infoframe(struct mtk_hdmi *hdmi,
+						struct drm_display_mode *mode)
+{
+	struct hdmi_vendor_infoframe frame;
+	u8 buffer[10];
+	ssize_t err;
+
+	err = drm_hdmi_vendor_infoframe_from_display_mode(&frame,
+							  hdmi->curr_conn, mode);
+	if (err) {
+		dev_err(hdmi->dev,
+			"Failed to get vendor infoframe from mode: %zd\n", err);
+		return err;
+	}
+
+	err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n",
+			err);
+		return err;
+	}
+
+	mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer));
+	return 0;
+}
+
+static int mtk_hdmi_output_init(struct mtk_hdmi *hdmi)
+{
+	struct hdmi_audio_param *aud_param = &hdmi->aud_param;
+
+	hdmi->csp = HDMI_COLORSPACE_RGB;
+	aud_param->aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
+	aud_param->aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+	aud_param->aud_input_type = HDMI_AUD_INPUT_I2S;
+	aud_param->aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
+	aud_param->aud_mclk = HDMI_AUD_MCLK_128FS;
+	aud_param->aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
+
+	return 0;
+}
+
+static void mtk_hdmi_audio_enable(struct mtk_hdmi *hdmi)
+{
+	mtk_hdmi_hw_send_aud_packet(hdmi, true);
+	hdmi->audio_enable = true;
+}
+
+static void mtk_hdmi_audio_disable(struct mtk_hdmi *hdmi)
+{
+	mtk_hdmi_hw_send_aud_packet(hdmi, false);
+	hdmi->audio_enable = false;
+}
+
+static int mtk_hdmi_audio_set_param(struct mtk_hdmi *hdmi,
+				    struct hdmi_audio_param *param)
+{
+	if (!hdmi->audio_enable) {
+		dev_err(hdmi->dev, "hdmi audio is in disable state!\n");
+		return -EINVAL;
+	}
+	dev_dbg(hdmi->dev, "codec:%d, input:%d, channel:%d, fs:%d\n",
+		param->aud_codec, param->aud_input_type,
+		param->aud_input_chan_type, param->codec_params.sample_rate);
+	memcpy(&hdmi->aud_param, param, sizeof(*param));
+	return mtk_hdmi_aud_output_config(hdmi, &hdmi->mode);
+}
+
+static int mtk_hdmi_output_set_display_mode(struct mtk_hdmi *hdmi,
+					    struct drm_display_mode *mode)
+{
+	int ret;
+
+	mtk_hdmi_hw_vid_black(hdmi, true);
+	mtk_hdmi_hw_aud_mute(hdmi);
+	mtk_hdmi_hw_send_av_mute(hdmi);
+	phy_power_off(hdmi->phy);
+
+	ret = mtk_hdmi_video_change_vpll(hdmi,
+					 mode->clock * 1000);
+	if (ret) {
+		dev_err(hdmi->dev, "Failed to set vpll: %d\n", ret);
+		return ret;
+	}
+	mtk_hdmi_video_set_display_mode(hdmi, mode);
+
+	phy_power_on(hdmi->phy);
+	mtk_hdmi_aud_output_config(hdmi, mode);
+
+	mtk_hdmi_hw_vid_black(hdmi, false);
+	mtk_hdmi_hw_aud_unmute(hdmi);
+	mtk_hdmi_hw_send_av_unmute(hdmi);
+
+	return 0;
+}
+
+static const char * const mtk_hdmi_clk_names[MTK_HDMI_CLK_COUNT] = {
+	[MTK_HDMI_CLK_HDMI_PIXEL] = "pixel",
+	[MTK_HDMI_CLK_HDMI_PLL] = "pll",
+	[MTK_HDMI_CLK_AUD_BCLK] = "bclk",
+	[MTK_HDMI_CLK_AUD_SPDIF] = "spdif",
+};
+
+static int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi,
+				struct device_node *np)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mtk_hdmi_clk_names); i++) {
+		hdmi->clk[i] = of_clk_get_by_name(np,
+						  mtk_hdmi_clk_names[i]);
+		if (IS_ERR(hdmi->clk[i]))
+			return PTR_ERR(hdmi->clk[i]);
+	}
+	return 0;
+}
+
+static int mtk_hdmi_clk_enable_audio(struct mtk_hdmi *hdmi)
+{
+	int ret;
+
+	ret = clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]);
+	if (ret)
+		goto err;
+
+	return 0;
+err:
+	clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]);
+	return ret;
+}
+
+static void mtk_hdmi_clk_disable_audio(struct mtk_hdmi *hdmi)
+{
+	clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]);
+	clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]);
+}
+
+static enum drm_connector_status
+mtk_hdmi_update_plugged_status(struct mtk_hdmi *hdmi)
+{
+	bool connected;
+
+	mutex_lock(&hdmi->update_plugged_status_lock);
+	connected = mtk_cec_hpd_high(hdmi->cec_dev);
+	if (hdmi->plugged_cb && hdmi->codec_dev)
+		hdmi->plugged_cb(hdmi->codec_dev, connected);
+	mutex_unlock(&hdmi->update_plugged_status_lock);
+
+	return connected ?
+	       connector_status_connected : connector_status_disconnected;
+}
+
+static enum drm_connector_status mtk_hdmi_detect(struct mtk_hdmi *hdmi)
+{
+	return mtk_hdmi_update_plugged_status(hdmi);
+}
+
+static enum drm_mode_status
+mtk_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
+			   const struct drm_display_info *info,
+			   const struct drm_display_mode *mode)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+	struct drm_bridge *next_bridge;
+
+	dev_dbg(hdmi->dev, "xres=%d, yres=%d, refresh=%d, intl=%d clock=%d\n",
+		mode->hdisplay, mode->vdisplay, drm_mode_vrefresh(mode),
+		!!(mode->flags & DRM_MODE_FLAG_INTERLACE), mode->clock * 1000);
+
+	next_bridge = drm_bridge_get_next_bridge(&hdmi->bridge);
+	if (next_bridge) {
+		struct drm_display_mode adjusted_mode;
+
+		drm_mode_copy(&adjusted_mode, mode);
+		if (!drm_bridge_chain_mode_fixup(next_bridge, mode,
+						 &adjusted_mode))
+			return MODE_BAD;
+	}
+
+	if (hdmi->conf) {
+		if (hdmi->conf->cea_modes_only && !drm_match_cea_mode(mode))
+			return MODE_BAD;
+
+		if (hdmi->conf->max_mode_clock &&
+		    mode->clock > hdmi->conf->max_mode_clock)
+			return MODE_CLOCK_HIGH;
+	}
+
+	if (mode->clock < 27000)
+		return MODE_CLOCK_LOW;
+	if (mode->clock > 297000)
+		return MODE_CLOCK_HIGH;
+
+	return drm_mode_validate_size(mode, 0x1fff, 0x1fff);
+}
+
+static void mtk_hdmi_hpd_event(bool hpd, struct device *dev)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+	if (hdmi && hdmi->bridge.encoder && hdmi->bridge.encoder->dev) {
+		static enum drm_connector_status status;
+
+		status = mtk_hdmi_detect(hdmi);
+		drm_helper_hpd_irq_event(hdmi->bridge.encoder->dev);
+		drm_bridge_hpd_notify(&hdmi->bridge, status);
+	}
+}
+
+/*
+ * Bridge callbacks
+ */
+
+static enum drm_connector_status mtk_hdmi_bridge_detect(struct drm_bridge *bridge)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+	return mtk_hdmi_detect(hdmi);
+}
+
+static struct edid *mtk_hdmi_bridge_get_edid(struct drm_bridge *bridge,
+					     struct drm_connector *connector)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+	struct edid *edid;
+
+	if (!hdmi->ddc_adpt)
+		return NULL;
+	edid = drm_get_edid(connector, hdmi->ddc_adpt);
+	if (!edid)
+		return NULL;
+	hdmi->dvi_mode = !drm_detect_monitor_audio(edid);
+	return edid;
+}
+
+static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge,
+				  enum drm_bridge_attach_flags flags)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+	int ret;
+
+	if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
+		DRM_ERROR("%s: The flag DRM_BRIDGE_ATTACH_NO_CONNECTOR must be supplied\n",
+			  __func__);
+		return -EINVAL;
+	}
+
+	if (hdmi->next_bridge) {
+		ret = drm_bridge_attach(bridge->encoder, hdmi->next_bridge,
+					bridge, flags);
+		if (ret)
+			return ret;
+	}
+
+	mtk_cec_set_hpd_event(hdmi->cec_dev, mtk_hdmi_hpd_event, hdmi->dev);
+
+	return 0;
+}
+
+static bool mtk_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
+				       const struct drm_display_mode *mode,
+				       struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static void mtk_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
+					   struct drm_bridge_state *old_bridge_state)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+	if (!hdmi->enabled)
+		return;
+
+	phy_power_off(hdmi->phy);
+	clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]);
+	clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
+
+	hdmi->curr_conn = NULL;
+
+	hdmi->enabled = false;
+}
+
+static void mtk_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
+						struct drm_bridge_state *old_state)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+	if (!hdmi->powered)
+		return;
+
+	mtk_hdmi_hw_1p4_version_enable(hdmi, true);
+	mtk_hdmi_hw_make_reg_writable(hdmi, false);
+
+	hdmi->powered = false;
+}
+
+static void mtk_hdmi_bridge_mode_set(struct drm_bridge *bridge,
+				const struct drm_display_mode *mode,
+				const struct drm_display_mode *adjusted_mode)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+	dev_dbg(hdmi->dev, "cur info: name:%s, hdisplay:%d\n",
+		adjusted_mode->name, adjusted_mode->hdisplay);
+	dev_dbg(hdmi->dev, "hsync_start:%d,hsync_end:%d, htotal:%d",
+		adjusted_mode->hsync_start, adjusted_mode->hsync_end,
+		adjusted_mode->htotal);
+	dev_dbg(hdmi->dev, "hskew:%d, vdisplay:%d\n",
+		adjusted_mode->hskew, adjusted_mode->vdisplay);
+	dev_dbg(hdmi->dev, "vsync_start:%d, vsync_end:%d, vtotal:%d",
+		adjusted_mode->vsync_start, adjusted_mode->vsync_end,
+		adjusted_mode->vtotal);
+	dev_dbg(hdmi->dev, "vscan:%d, flag:%d\n",
+		adjusted_mode->vscan, adjusted_mode->flags);
+
+	drm_mode_copy(&hdmi->mode, adjusted_mode);
+}
+
+static void mtk_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
+					      struct drm_bridge_state *old_state)
+{
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+	mtk_hdmi_hw_make_reg_writable(hdmi, true);
+	mtk_hdmi_hw_1p4_version_enable(hdmi, true);
+
+	hdmi->powered = true;
+}
+
+static void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi,
+				    struct drm_display_mode *mode)
+{
+	mtk_hdmi_setup_audio_infoframe(hdmi);
+	mtk_hdmi_setup_avi_infoframe(hdmi, mode);
+	mtk_hdmi_setup_spd_infoframe(hdmi, "mediatek", "On-chip HDMI");
+	if (mode->flags & DRM_MODE_FLAG_3D_MASK)
+		mtk_hdmi_setup_vendor_specific_infoframe(hdmi, mode);
+}
+
+static void mtk_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
+					  struct drm_bridge_state *old_state)
+{
+	struct drm_atomic_state *state = old_state->base.state;
+	struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+	/* Retrieve the connector through the atomic state. */
+	hdmi->curr_conn = drm_atomic_get_new_connector_for_encoder(state,
+								   bridge->encoder);
+
+	mtk_hdmi_output_set_display_mode(hdmi, &hdmi->mode);
+	clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
+	clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]);
+	phy_power_on(hdmi->phy);
+	mtk_hdmi_send_infoframe(hdmi, &hdmi->mode);
+
+	hdmi->enabled = true;
+}
+
+static const struct drm_bridge_funcs mtk_hdmi_bridge_funcs = {
+	.mode_valid = mtk_hdmi_bridge_mode_valid,
+	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+	.atomic_reset = drm_atomic_helper_bridge_reset,
+	.attach = mtk_hdmi_bridge_attach,
+	.mode_fixup = mtk_hdmi_bridge_mode_fixup,
+	.atomic_disable = mtk_hdmi_bridge_atomic_disable,
+	.atomic_post_disable = mtk_hdmi_bridge_atomic_post_disable,
+	.mode_set = mtk_hdmi_bridge_mode_set,
+	.atomic_pre_enable = mtk_hdmi_bridge_atomic_pre_enable,
+	.atomic_enable = mtk_hdmi_bridge_atomic_enable,
+	.detect = mtk_hdmi_bridge_detect,
+	.get_edid = mtk_hdmi_bridge_get_edid,
+};
+
+static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
+				   struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct device_node *cec_np, *remote, *i2c_np;
+	struct platform_device *cec_pdev;
+	struct regmap *regmap;
+	struct resource *mem;
+	int ret;
+
+	ret = mtk_hdmi_get_all_clk(hdmi, np);
+	if (ret) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Failed to get clocks: %d\n", ret);
+
+		return ret;
+	}
+
+	/* The CEC module handles HDMI hotplug detection */
+	cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-cec");
+	if (!cec_np) {
+		dev_err(dev, "Failed to find CEC node\n");
+		return -EINVAL;
+	}
+
+	cec_pdev = of_find_device_by_node(cec_np);
+	if (!cec_pdev) {
+		dev_err(hdmi->dev, "Waiting for CEC device %pOF\n",
+			cec_np);
+		of_node_put(cec_np);
+		return -EPROBE_DEFER;
+	}
+	of_node_put(cec_np);
+	hdmi->cec_dev = &cec_pdev->dev;
+
+	/*
+	 * The mediatek,syscon-hdmi property contains a phandle link to the
+	 * MMSYS_CONFIG device and the register offset of the HDMI_SYS_CFG
+	 * registers it contains.
+	 */
+	regmap = syscon_regmap_lookup_by_phandle(np, "mediatek,syscon-hdmi");
+	ret = of_property_read_u32_index(np, "mediatek,syscon-hdmi", 1,
+					 &hdmi->sys_offset);
+	if (IS_ERR(regmap))
+		ret = PTR_ERR(regmap);
+	if (ret) {
+		dev_err(dev,
+			"Failed to get system configuration registers: %d\n",
+			ret);
+		goto put_device;
+	}
+	hdmi->sys_regmap = regmap;
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	hdmi->regs = devm_ioremap_resource(dev, mem);
+	if (IS_ERR(hdmi->regs)) {
+		ret = PTR_ERR(hdmi->regs);
+		goto put_device;
+	}
+
+	remote = of_graph_get_remote_node(np, 1, 0);
+	if (!remote) {
+		ret = -EINVAL;
+		goto put_device;
+	}
+
+	if (!of_device_is_compatible(remote, "hdmi-connector")) {
+		hdmi->next_bridge = of_drm_find_bridge(remote);
+		if (!hdmi->next_bridge) {
+			dev_err(dev, "Waiting for external bridge\n");
+			of_node_put(remote);
+			ret = -EPROBE_DEFER;
+			goto put_device;
+		}
+	}
+
+	i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
+	if (!i2c_np) {
+		dev_err(dev, "Failed to find ddc-i2c-bus node in %pOF\n",
+			remote);
+		of_node_put(remote);
+		ret = -EINVAL;
+		goto put_device;
+	}
+	of_node_put(remote);
+
+	hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
+	of_node_put(i2c_np);
+	if (!hdmi->ddc_adpt) {
+		dev_err(dev, "Failed to get ddc i2c adapter by node\n");
+		ret = -EINVAL;
+		goto put_device;
+	}
+
+	return 0;
+put_device:
+	put_device(hdmi->cec_dev);
+	return ret;
+}
+
+/*
+ * HDMI audio codec callbacks
+ */
+
+static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,
+				    struct hdmi_codec_daifmt *daifmt,
+				    struct hdmi_codec_params *params)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+	struct hdmi_audio_param hdmi_params;
+	unsigned int chan = params->cea.channels;
+
+	dev_dbg(hdmi->dev, "%s: %u Hz, %d bit, %d channels\n", __func__,
+		params->sample_rate, params->sample_width, chan);
+
+	if (!hdmi->bridge.encoder)
+		return -ENODEV;
+
+	switch (chan) {
+	case 2:
+		hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
+		break;
+	case 4:
+		hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_4_0;
+		break;
+	case 6:
+		hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_5_1;
+		break;
+	case 8:
+		hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_7_1;
+		break;
+	default:
+		dev_err(hdmi->dev, "channel[%d] not supported!\n", chan);
+		return -EINVAL;
+	}
+
+	switch (params->sample_rate) {
+	case 32000:
+	case 44100:
+	case 48000:
+	case 88200:
+	case 96000:
+	case 176400:
+	case 192000:
+		break;
+	default:
+		dev_err(hdmi->dev, "rate[%d] not supported!\n",
+			params->sample_rate);
+		return -EINVAL;
+	}
+
+	switch (daifmt->fmt) {
+	case HDMI_I2S:
+		hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
+		hdmi_params.aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+		hdmi_params.aud_input_type = HDMI_AUD_INPUT_I2S;
+		hdmi_params.aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
+		hdmi_params.aud_mclk = HDMI_AUD_MCLK_128FS;
+		break;
+	case HDMI_SPDIF:
+		hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
+		hdmi_params.aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+		hdmi_params.aud_input_type = HDMI_AUD_INPUT_SPDIF;
+		break;
+	default:
+		dev_err(hdmi->dev, "%s: Invalid DAI format %d\n", __func__,
+			daifmt->fmt);
+		return -EINVAL;
+	}
+
+	memcpy(&hdmi_params.codec_params, params,
+	       sizeof(hdmi_params.codec_params));
+
+	mtk_hdmi_audio_set_param(hdmi, &hdmi_params);
+
+	return 0;
+}
+
+static int mtk_hdmi_audio_startup(struct device *dev, void *data)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+	mtk_hdmi_audio_enable(hdmi);
+
+	return 0;
+}
+
+static void mtk_hdmi_audio_shutdown(struct device *dev, void *data)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+	mtk_hdmi_audio_disable(hdmi);
+}
+
+static int
+mtk_hdmi_audio_mute(struct device *dev, void *data,
+		    bool enable, int direction)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+	if (enable)
+		mtk_hdmi_hw_aud_mute(hdmi);
+	else
+		mtk_hdmi_hw_aud_unmute(hdmi);
+
+	return 0;
+}
+
+static int mtk_hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf, size_t len)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+	if (hdmi->enabled)
+		memcpy(buf, hdmi->curr_conn->eld, min(sizeof(hdmi->curr_conn->eld), len));
+	else
+		memset(buf, 0, len);
+	return 0;
+}
+
+static int mtk_hdmi_audio_hook_plugged_cb(struct device *dev, void *data,
+					  hdmi_codec_plugged_cb fn,
+					  struct device *codec_dev)
+{
+	struct mtk_hdmi *hdmi = data;
+
+	mutex_lock(&hdmi->update_plugged_status_lock);
+	hdmi->plugged_cb = fn;
+	hdmi->codec_dev = codec_dev;
+	mutex_unlock(&hdmi->update_plugged_status_lock);
+
+	mtk_hdmi_update_plugged_status(hdmi);
+
+	return 0;
+}
+
+static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = {
+	.hw_params = mtk_hdmi_audio_hw_params,
+	.audio_startup = mtk_hdmi_audio_startup,
+	.audio_shutdown = mtk_hdmi_audio_shutdown,
+	.mute_stream = mtk_hdmi_audio_mute,
+	.get_eld = mtk_hdmi_audio_get_eld,
+	.hook_plugged_cb = mtk_hdmi_audio_hook_plugged_cb,
+	.no_capture_mute = 1,
+};
+
+static int mtk_hdmi_register_audio_driver(struct device *dev)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+	struct hdmi_codec_pdata codec_data = {
+		.ops = &mtk_hdmi_audio_codec_ops,
+		.max_i2s_channels = 2,
+		.i2s = 1,
+		.data = hdmi,
+	};
+	struct platform_device *pdev;
+
+	pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME,
+					     PLATFORM_DEVID_AUTO, &codec_data,
+					     sizeof(codec_data));
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME);
+	return 0;
+}
+
+static int mtk_drm_hdmi_probe(struct platform_device *pdev)
+{
+	struct mtk_hdmi *hdmi;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
+	if (!hdmi)
+		return -ENOMEM;
+
+	hdmi->dev = dev;
+	hdmi->conf = of_device_get_match_data(dev);
+
+	ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev);
+	if (ret)
+		return ret;
+
+	hdmi->phy = devm_phy_get(dev, "hdmi");
+	if (IS_ERR(hdmi->phy)) {
+		ret = PTR_ERR(hdmi->phy);
+		dev_err(dev, "Failed to get HDMI PHY: %d\n", ret);
+		return ret;
+	}
+
+	mutex_init(&hdmi->update_plugged_status_lock);
+	platform_set_drvdata(pdev, hdmi);
+
+	ret = mtk_hdmi_output_init(hdmi);
+	if (ret) {
+		dev_err(dev, "Failed to initialize hdmi output\n");
+		return ret;
+	}
+
+	ret = mtk_hdmi_register_audio_driver(dev);
+	if (ret) {
+		dev_err(dev, "Failed to register audio driver: %d\n", ret);
+		return ret;
+	}
+
+	hdmi->bridge.funcs = &mtk_hdmi_bridge_funcs;
+	hdmi->bridge.of_node = pdev->dev.of_node;
+	hdmi->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
+			 | DRM_BRIDGE_OP_HPD;
+	hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
+	drm_bridge_add(&hdmi->bridge);
+
+	ret = mtk_hdmi_clk_enable_audio(hdmi);
+	if (ret) {
+		dev_err(dev, "Failed to enable audio clocks: %d\n", ret);
+		goto err_bridge_remove;
+	}
+
+	return 0;
+
+err_bridge_remove:
+	drm_bridge_remove(&hdmi->bridge);
+	return ret;
+}
+
+static int mtk_drm_hdmi_remove(struct platform_device *pdev)
+{
+	struct mtk_hdmi *hdmi = platform_get_drvdata(pdev);
+
+	drm_bridge_remove(&hdmi->bridge);
+	mtk_hdmi_clk_disable_audio(hdmi);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mtk_hdmi_suspend(struct device *dev)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+	mtk_hdmi_clk_disable_audio(hdmi);
+
+	return 0;
+}
+
+static int mtk_hdmi_resume(struct device *dev)
+{
+	struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+	int ret = 0;
+
+	ret = mtk_hdmi_clk_enable_audio(hdmi);
+	if (ret) {
+		dev_err(dev, "hdmi resume failed!\n");
+		return ret;
+	}
+
+	return 0;
+}
+#endif
+static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
+			 mtk_hdmi_suspend, mtk_hdmi_resume);
+
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = {
+	.tz_disabled = true,
+};
+
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8167 = {
+	.max_mode_clock = 148500,
+	.cea_modes_only = true,
+};
+
+static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
+	{ .compatible = "mediatek,mt2701-hdmi",
+	  .data = &mtk_hdmi_conf_mt2701,
+	},
+	{ .compatible = "mediatek,mt8167-hdmi",
+	  .data = &mtk_hdmi_conf_mt8167,
+	},
+	{ .compatible = "mediatek,mt8173-hdmi",
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, mtk_drm_hdmi_of_ids);
+
+static struct platform_driver mtk_hdmi_driver = {
+	.probe = mtk_drm_hdmi_probe,
+	.remove = mtk_drm_hdmi_remove,
+	.driver = {
+		.name = "mediatek-drm-hdmi",
+		.of_match_table = mtk_drm_hdmi_of_ids,
+		.pm = &mtk_hdmi_pm_ops,
+	},
+};
+
+static struct platform_driver * const mtk_hdmi_drivers[] = {
+	&mtk_hdmi_ddc_driver,
+	&mtk_cec_driver,
+	&mtk_hdmi_driver,
+};
+
+static int __init mtk_hdmitx_init(void)
+{
+	return platform_register_drivers(mtk_hdmi_drivers,
+					 ARRAY_SIZE(mtk_hdmi_drivers));
+}
+
+static void __exit mtk_hdmitx_exit(void)
+{
+	platform_unregister_drivers(mtk_hdmi_drivers,
+				    ARRAY_SIZE(mtk_hdmi_drivers));
+}
+
+module_init(mtk_hdmitx_init);
+module_exit(mtk_hdmitx_exit);
+
+MODULE_AUTHOR("Jie Qiu <jie.qiu@mediatek.com>");
+MODULE_DESCRIPTION("MediaTek HDMI Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.h b/drivers/gpu/drm/mediatek/mtk_hdmi.h
new file mode 100644
index 000000000..472bf141c
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+#ifndef _MTK_HDMI_CTRL_H
+#define _MTK_HDMI_CTRL_H
+
+struct platform_driver;
+
+extern struct platform_driver mtk_cec_driver;
+extern struct platform_driver mtk_hdmi_ddc_driver;
+
+#endif /* _MTK_HDMI_CTRL_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
new file mode 100644
index 000000000..6207eac88
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_ddc.c
@@ -0,0 +1,351 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#define SIF1_CLOK		(288)
+#define DDC_DDCMCTL0		(0x0)
+#define DDCM_ODRAIN			BIT(31)
+#define DDCM_CLK_DIV_OFFSET		(16)
+#define DDCM_CLK_DIV_MASK		(0xfff << 16)
+#define DDCM_CS_STATUS			BIT(4)
+#define DDCM_SCL_STATE			BIT(3)
+#define DDCM_SDA_STATE			BIT(2)
+#define DDCM_SM0EN			BIT(1)
+#define DDCM_SCL_STRECH			BIT(0)
+#define DDC_DDCMCTL1		(0x4)
+#define DDCM_ACK_OFFSET			(16)
+#define DDCM_ACK_MASK			(0xff << 16)
+#define DDCM_PGLEN_OFFSET		(8)
+#define DDCM_PGLEN_MASK			(0x7 << 8)
+#define DDCM_SIF_MODE_OFFSET		(4)
+#define DDCM_SIF_MODE_MASK		(0x7 << 4)
+#define DDCM_START			(0x1)
+#define DDCM_WRITE_DATA			(0x2)
+#define DDCM_STOP			(0x3)
+#define DDCM_READ_DATA_NO_ACK		(0x4)
+#define DDCM_READ_DATA_ACK		(0x5)
+#define DDCM_TRI			BIT(0)
+#define DDC_DDCMD0		(0x8)
+#define DDCM_DATA3			(0xff << 24)
+#define DDCM_DATA2			(0xff << 16)
+#define DDCM_DATA1			(0xff << 8)
+#define DDCM_DATA0			(0xff << 0)
+#define DDC_DDCMD1		(0xc)
+#define DDCM_DATA7			(0xff << 24)
+#define DDCM_DATA6			(0xff << 16)
+#define DDCM_DATA5			(0xff << 8)
+#define DDCM_DATA4			(0xff << 0)
+
+struct mtk_hdmi_ddc {
+	struct i2c_adapter adap;
+	struct clk *clk;
+	void __iomem *regs;
+};
+
+static inline void sif_set_bit(struct mtk_hdmi_ddc *ddc, unsigned int offset,
+			       unsigned int val)
+{
+	writel(readl(ddc->regs + offset) | val, ddc->regs + offset);
+}
+
+static inline void sif_clr_bit(struct mtk_hdmi_ddc *ddc, unsigned int offset,
+			       unsigned int val)
+{
+	writel(readl(ddc->regs + offset) & ~val, ddc->regs + offset);
+}
+
+static inline bool sif_bit_is_set(struct mtk_hdmi_ddc *ddc, unsigned int offset,
+				  unsigned int val)
+{
+	return (readl(ddc->regs + offset) & val) == val;
+}
+
+static inline void sif_write_mask(struct mtk_hdmi_ddc *ddc, unsigned int offset,
+				  unsigned int mask, unsigned int shift,
+				  unsigned int val)
+{
+	unsigned int tmp;
+
+	tmp = readl(ddc->regs + offset);
+	tmp &= ~mask;
+	tmp |= (val << shift) & mask;
+	writel(tmp, ddc->regs + offset);
+}
+
+static inline unsigned int sif_read_mask(struct mtk_hdmi_ddc *ddc,
+					 unsigned int offset, unsigned int mask,
+					 unsigned int shift)
+{
+	return (readl(ddc->regs + offset) & mask) >> shift;
+}
+
+static void ddcm_trigger_mode(struct mtk_hdmi_ddc *ddc, int mode)
+{
+	u32 val;
+
+	sif_write_mask(ddc, DDC_DDCMCTL1, DDCM_SIF_MODE_MASK,
+		       DDCM_SIF_MODE_OFFSET, mode);
+	sif_set_bit(ddc, DDC_DDCMCTL1, DDCM_TRI);
+	readl_poll_timeout(ddc->regs + DDC_DDCMCTL1, val,
+			   (val & DDCM_TRI) != DDCM_TRI, 4, 20000);
+}
+
+static int mtk_hdmi_ddc_read_msg(struct mtk_hdmi_ddc *ddc, struct i2c_msg *msg)
+{
+	struct device *dev = ddc->adap.dev.parent;
+	u32 remain_count, ack_count, ack_final, read_count, temp_count;
+	u32 index = 0;
+	u32 ack;
+	int i;
+
+	ddcm_trigger_mode(ddc, DDCM_START);
+	sif_write_mask(ddc, DDC_DDCMD0, 0xff, 0, (msg->addr << 1) | 0x01);
+	sif_write_mask(ddc, DDC_DDCMCTL1, DDCM_PGLEN_MASK, DDCM_PGLEN_OFFSET,
+		       0x00);
+	ddcm_trigger_mode(ddc, DDCM_WRITE_DATA);
+	ack = sif_read_mask(ddc, DDC_DDCMCTL1, DDCM_ACK_MASK, DDCM_ACK_OFFSET);
+	dev_dbg(dev, "ack = 0x%x\n", ack);
+	if (ack != 0x01) {
+		dev_err(dev, "i2c ack err!\n");
+		return -ENXIO;
+	}
+
+	remain_count = msg->len;
+	ack_count = (msg->len - 1) / 8;
+	ack_final = 0;
+
+	while (remain_count > 0) {
+		if (ack_count > 0) {
+			read_count = 8;
+			ack_final = 0;
+			ack_count--;
+		} else {
+			read_count = remain_count;
+			ack_final = 1;
+		}
+
+		sif_write_mask(ddc, DDC_DDCMCTL1, DDCM_PGLEN_MASK,
+			       DDCM_PGLEN_OFFSET, read_count - 1);
+		ddcm_trigger_mode(ddc, (ack_final == 1) ?
+				  DDCM_READ_DATA_NO_ACK :
+				  DDCM_READ_DATA_ACK);
+
+		ack = sif_read_mask(ddc, DDC_DDCMCTL1, DDCM_ACK_MASK,
+				    DDCM_ACK_OFFSET);
+		temp_count = 0;
+		while (((ack & (1 << temp_count)) != 0) && (temp_count < 8))
+			temp_count++;
+		if (((ack_final == 1) && (temp_count != (read_count - 1))) ||
+		    ((ack_final == 0) && (temp_count != read_count))) {
+			dev_err(dev, "Address NACK! ACK(0x%x)\n", ack);
+			break;
+		}
+
+		for (i = read_count; i >= 1; i--) {
+			int shift;
+			int offset;
+
+			if (i > 4) {
+				offset = DDC_DDCMD1;
+				shift = (i - 5) * 8;
+			} else {
+				offset = DDC_DDCMD0;
+				shift = (i - 1) * 8;
+			}
+
+			msg->buf[index + i - 1] = sif_read_mask(ddc, offset,
+								0xff << shift,
+								shift);
+		}
+
+		remain_count -= read_count;
+		index += read_count;
+	}
+
+	return 0;
+}
+
+static int mtk_hdmi_ddc_write_msg(struct mtk_hdmi_ddc *ddc, struct i2c_msg *msg)
+{
+	struct device *dev = ddc->adap.dev.parent;
+	u32 ack;
+
+	ddcm_trigger_mode(ddc, DDCM_START);
+	sif_write_mask(ddc, DDC_DDCMD0, DDCM_DATA0, 0, msg->addr << 1);
+	sif_write_mask(ddc, DDC_DDCMD0, DDCM_DATA1, 8, msg->buf[0]);
+	sif_write_mask(ddc, DDC_DDCMCTL1, DDCM_PGLEN_MASK, DDCM_PGLEN_OFFSET,
+		       0x1);
+	ddcm_trigger_mode(ddc, DDCM_WRITE_DATA);
+
+	ack = sif_read_mask(ddc, DDC_DDCMCTL1, DDCM_ACK_MASK, DDCM_ACK_OFFSET);
+	dev_dbg(dev, "ack = %d\n", ack);
+
+	if (ack != 0x03) {
+		dev_err(dev, "i2c ack err!\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mtk_hdmi_ddc_xfer(struct i2c_adapter *adapter,
+			     struct i2c_msg *msgs, int num)
+{
+	struct mtk_hdmi_ddc *ddc = adapter->algo_data;
+	struct device *dev = adapter->dev.parent;
+	int ret;
+	int i;
+
+	if (!ddc) {
+		dev_err(dev, "invalid arguments\n");
+		return -EINVAL;
+	}
+
+	sif_set_bit(ddc, DDC_DDCMCTL0, DDCM_SCL_STRECH);
+	sif_set_bit(ddc, DDC_DDCMCTL0, DDCM_SM0EN);
+	sif_clr_bit(ddc, DDC_DDCMCTL0, DDCM_ODRAIN);
+
+	if (sif_bit_is_set(ddc, DDC_DDCMCTL1, DDCM_TRI)) {
+		dev_err(dev, "ddc line is busy!\n");
+		return -EBUSY;
+	}
+
+	sif_write_mask(ddc, DDC_DDCMCTL0, DDCM_CLK_DIV_MASK,
+		       DDCM_CLK_DIV_OFFSET, SIF1_CLOK);
+
+	for (i = 0; i < num; i++) {
+		struct i2c_msg *msg = &msgs[i];
+
+		dev_dbg(dev, "i2c msg, adr:0x%x, flags:%d, len :0x%x\n",
+			msg->addr, msg->flags, msg->len);
+
+		if (msg->flags & I2C_M_RD)
+			ret = mtk_hdmi_ddc_read_msg(ddc, msg);
+		else
+			ret = mtk_hdmi_ddc_write_msg(ddc, msg);
+		if (ret < 0)
+			goto xfer_end;
+	}
+
+	ddcm_trigger_mode(ddc, DDCM_STOP);
+
+	return i;
+
+xfer_end:
+	ddcm_trigger_mode(ddc, DDCM_STOP);
+	dev_err(dev, "ddc failed!\n");
+	return ret;
+}
+
+static u32 mtk_hdmi_ddc_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm mtk_hdmi_ddc_algorithm = {
+	.master_xfer = mtk_hdmi_ddc_xfer,
+	.functionality = mtk_hdmi_ddc_func,
+};
+
+static int mtk_hdmi_ddc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtk_hdmi_ddc *ddc;
+	struct resource *mem;
+	int ret;
+
+	ddc = devm_kzalloc(dev, sizeof(struct mtk_hdmi_ddc), GFP_KERNEL);
+	if (!ddc)
+		return -ENOMEM;
+
+	ddc->clk = devm_clk_get(dev, "ddc-i2c");
+	if (IS_ERR(ddc->clk)) {
+		dev_err(dev, "get ddc_clk failed: %p ,\n", ddc->clk);
+		return PTR_ERR(ddc->clk);
+	}
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ddc->regs = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(ddc->regs))
+		return PTR_ERR(ddc->regs);
+
+	ret = clk_prepare_enable(ddc->clk);
+	if (ret) {
+		dev_err(dev, "enable ddc clk failed!\n");
+		return ret;
+	}
+
+	strlcpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc->adap.name));
+	ddc->adap.owner = THIS_MODULE;
+	ddc->adap.class = I2C_CLASS_DDC;
+	ddc->adap.algo = &mtk_hdmi_ddc_algorithm;
+	ddc->adap.retries = 3;
+	ddc->adap.dev.of_node = dev->of_node;
+	ddc->adap.algo_data = ddc;
+	ddc->adap.dev.parent = &pdev->dev;
+
+	ret = i2c_add_adapter(&ddc->adap);
+	if (ret < 0) {
+		dev_err(dev, "failed to add bus to i2c core\n");
+		goto err_clk_disable;
+	}
+
+	platform_set_drvdata(pdev, ddc);
+
+	dev_dbg(dev, "ddc->adap: %p\n", &ddc->adap);
+	dev_dbg(dev, "ddc->clk: %p\n", ddc->clk);
+	dev_dbg(dev, "physical adr: %pa, end: %pa\n", &mem->start,
+		&mem->end);
+
+	return 0;
+
+err_clk_disable:
+	clk_disable_unprepare(ddc->clk);
+	return ret;
+}
+
+static int mtk_hdmi_ddc_remove(struct platform_device *pdev)
+{
+	struct mtk_hdmi_ddc *ddc = platform_get_drvdata(pdev);
+
+	i2c_del_adapter(&ddc->adap);
+	clk_disable_unprepare(ddc->clk);
+
+	return 0;
+}
+
+static const struct of_device_id mtk_hdmi_ddc_match[] = {
+	{ .compatible = "mediatek,mt8173-hdmi-ddc", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_hdmi_ddc_match);
+
+struct platform_driver mtk_hdmi_ddc_driver = {
+	.probe = mtk_hdmi_ddc_probe,
+	.remove = mtk_hdmi_ddc_remove,
+	.driver = {
+		.name = "mediatek-hdmi-ddc",
+		.of_match_table = mtk_hdmi_ddc_match,
+	},
+};
+
+MODULE_AUTHOR("Jie Qiu <jie.qiu@mediatek.com>");
+MODULE_DESCRIPTION("MediaTek HDMI DDC Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h b/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
new file mode 100644
index 000000000..2050ba45b
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_regs.h
@@ -0,0 +1,230 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Jie Qiu <jie.qiu@mediatek.com>
+ */
+#ifndef _MTK_HDMI_REGS_H
+#define _MTK_HDMI_REGS_H
+
+#define GRL_INT_MASK		0x18
+#define GRL_IFM_PORT		0x188
+#define GRL_CH_SWAP		0x198
+#define LR_SWAP				BIT(0)
+#define LFE_CC_SWAP			BIT(1)
+#define LSRS_SWAP			BIT(2)
+#define RLS_RRS_SWAP			BIT(3)
+#define LR_STATUS_SWAP			BIT(4)
+#define GRL_I2S_C_STA0		0x140
+#define GRL_I2S_C_STA1		0x144
+#define GRL_I2S_C_STA2		0x148
+#define GRL_I2S_C_STA3		0x14C
+#define GRL_I2S_C_STA4		0x150
+#define GRL_I2S_UV		0x154
+#define I2S_UV_V			BIT(0)
+#define I2S_UV_U			BIT(1)
+#define I2S_UV_CH_EN_MASK		0x3c
+#define I2S_UV_CH_EN(x)			BIT((x) + 2)
+#define I2S_UV_TMDS_DEBUG		BIT(6)
+#define I2S_UV_NORMAL_INFO_INV		BIT(7)
+#define GRL_ACP_ISRC_CTRL	0x158
+#define VS_EN				BIT(0)
+#define ACP_EN				BIT(1)
+#define ISRC1_EN			BIT(2)
+#define ISRC2_EN			BIT(3)
+#define GAMUT_EN			BIT(4)
+#define GRL_CTS_CTRL		0x160
+#define CTS_CTRL_SOFT			BIT(0)
+#define GRL_INT			0x14
+#define INT_MDI				BIT(0)
+#define INT_HDCP			BIT(1)
+#define INT_FIFO_O			BIT(2)
+#define INT_FIFO_U			BIT(3)
+#define INT_IFM_ERR			BIT(4)
+#define INT_INF_DONE			BIT(5)
+#define INT_NCTS_DONE			BIT(6)
+#define INT_CTRL_PKT_DONE		BIT(7)
+#define GRL_INT_MASK		0x18
+#define GRL_CTRL		0x1C
+#define CTRL_GEN_EN			BIT(2)
+#define CTRL_SPD_EN			BIT(3)
+#define CTRL_MPEG_EN			BIT(4)
+#define CTRL_AUDIO_EN			BIT(5)
+#define CTRL_AVI_EN			BIT(6)
+#define CTRL_AVMUTE			BIT(7)
+#define	GRL_STATUS		0x20
+#define STATUS_HTPLG			BIT(0)
+#define STATUS_PORD			BIT(1)
+#define GRL_DIVN		0x170
+#define NCTS_WRI_ANYTIME		BIT(6)
+#define GRL_AUDIO_CFG		0x17C
+#define AUDIO_ZERO			BIT(0)
+#define HIGH_BIT_RATE			BIT(1)
+#define SACD_DST			BIT(2)
+#define DST_NORMAL_DOUBLE		BIT(3)
+#define DSD_INV				BIT(4)
+#define LR_INV				BIT(5)
+#define LR_MIX				BIT(6)
+#define DSD_SEL				BIT(7)
+#define GRL_NCTS		0x184
+#define GRL_CH_SW0		0x18C
+#define GRL_CH_SW1		0x190
+#define GRL_CH_SW2		0x194
+#define CH_SWITCH(from, to)		((from) << ((to) * 3))
+#define GRL_INFOFRM_VER		0x19C
+#define GRL_INFOFRM_TYPE	0x1A0
+#define GRL_INFOFRM_LNG		0x1A4
+#define GRL_MIX_CTRL		0x1B4
+#define MIX_CTRL_SRC_EN			BIT(0)
+#define BYPASS_VOLUME			BIT(1)
+#define MIX_CTRL_FLAT			BIT(7)
+#define GRL_AOUT_CFG		0x1C4
+#define AOUT_BNUM_SEL_MASK		0x03
+#define AOUT_24BIT			0x00
+#define AOUT_20BIT			0x02
+#define AOUT_16BIT			0x03
+#define AOUT_FIFO_ADAP_CTRL		BIT(6)
+#define AOUT_BURST_PREAMBLE_EN		BIT(7)
+#define HIGH_BIT_RATE_PACKET_ALIGN	(AOUT_BURST_PREAMBLE_EN | \
+					 AOUT_FIFO_ADAP_CTRL)
+#define GRL_SHIFT_L1		0x1C0
+#define GRL_SHIFT_R2		0x1B0
+#define AUDIO_PACKET_OFF		BIT(6)
+#define GRL_CFG0		0x24
+#define CFG0_I2S_MODE_MASK		0x3
+#define CFG0_I2S_MODE_RTJ		0x1
+#define CFG0_I2S_MODE_LTJ		0x0
+#define CFG0_I2S_MODE_I2S		0x2
+#define CFG0_W_LENGTH_MASK		0x30
+#define CFG0_W_LENGTH_24BIT		0x00
+#define CFG0_W_LENGTH_16BIT		0x10
+#define GRL_CFG1		0x28
+#define CFG1_EDG_SEL			BIT(0)
+#define CFG1_SPDIF			BIT(1)
+#define CFG1_DVI			BIT(2)
+#define CFG1_HDCP_DEBUG			BIT(3)
+#define GRL_CFG2		0x2c
+#define CFG2_MHL_DE_SEL			BIT(3)
+#define CFG2_MHL_FAKE_DE_SEL		BIT(4)
+#define CFG2_MHL_DATA_REMAP		BIT(5)
+#define CFG2_NOTICE_EN			BIT(6)
+#define CFG2_ACLK_INV			BIT(7)
+#define GRL_CFG3		0x30
+#define CFG3_AES_KEY_INDEX_MASK		0x3f
+#define CFG3_CONTROL_PACKET_DELAY	BIT(6)
+#define CFG3_KSV_LOAD_START		BIT(7)
+#define GRL_CFG4		0x34
+#define CFG4_AES_KEY_LOAD		BIT(4)
+#define CFG4_AV_UNMUTE_EN		BIT(5)
+#define CFG4_AV_UNMUTE_SET		BIT(6)
+#define CFG4_MHL_MODE			BIT(7)
+#define GRL_CFG5		0x38
+#define CFG5_CD_RATIO_MASK	0x8F
+#define CFG5_FS128			(0x1 << 4)
+#define CFG5_FS256			(0x2 << 4)
+#define CFG5_FS384			(0x3 << 4)
+#define CFG5_FS512			(0x4 << 4)
+#define CFG5_FS768			(0x6 << 4)
+#define DUMMY_304		0x304
+#define CHMO_SEL			(0x3 << 2)
+#define CHM1_SEL			(0x3 << 4)
+#define CHM2_SEL			(0x3 << 6)
+#define AUDIO_I2S_NCTS_SEL		BIT(1)
+#define AUDIO_I2S_NCTS_SEL_64		(1 << 1)
+#define AUDIO_I2S_NCTS_SEL_128		(0 << 1)
+#define NEW_GCP_CTRL			BIT(0)
+#define NEW_GCP_CTRL_MERGE		BIT(0)
+#define GRL_L_STATUS_0		0x200
+#define GRL_L_STATUS_1		0x204
+#define GRL_L_STATUS_2		0x208
+#define GRL_L_STATUS_3		0x20c
+#define GRL_L_STATUS_4		0x210
+#define GRL_L_STATUS_5		0x214
+#define GRL_L_STATUS_6		0x218
+#define GRL_L_STATUS_7		0x21c
+#define GRL_L_STATUS_8		0x220
+#define GRL_L_STATUS_9		0x224
+#define GRL_L_STATUS_10		0x228
+#define GRL_L_STATUS_11		0x22c
+#define GRL_L_STATUS_12		0x230
+#define GRL_L_STATUS_13		0x234
+#define GRL_L_STATUS_14		0x238
+#define GRL_L_STATUS_15		0x23c
+#define GRL_L_STATUS_16		0x240
+#define GRL_L_STATUS_17		0x244
+#define GRL_L_STATUS_18		0x248
+#define GRL_L_STATUS_19		0x24c
+#define GRL_L_STATUS_20		0x250
+#define GRL_L_STATUS_21		0x254
+#define GRL_L_STATUS_22		0x258
+#define GRL_L_STATUS_23		0x25c
+#define GRL_R_STATUS_0		0x260
+#define GRL_R_STATUS_1		0x264
+#define GRL_R_STATUS_2		0x268
+#define GRL_R_STATUS_3		0x26c
+#define GRL_R_STATUS_4		0x270
+#define GRL_R_STATUS_5		0x274
+#define GRL_R_STATUS_6		0x278
+#define GRL_R_STATUS_7		0x27c
+#define GRL_R_STATUS_8		0x280
+#define GRL_R_STATUS_9		0x284
+#define GRL_R_STATUS_10		0x288
+#define GRL_R_STATUS_11		0x28c
+#define GRL_R_STATUS_12		0x290
+#define GRL_R_STATUS_13		0x294
+#define GRL_R_STATUS_14		0x298
+#define GRL_R_STATUS_15		0x29c
+#define GRL_R_STATUS_16		0x2a0
+#define GRL_R_STATUS_17		0x2a4
+#define GRL_R_STATUS_18		0x2a8
+#define GRL_R_STATUS_19		0x2ac
+#define GRL_R_STATUS_20		0x2b0
+#define GRL_R_STATUS_21		0x2b4
+#define GRL_R_STATUS_22		0x2b8
+#define GRL_R_STATUS_23		0x2bc
+#define GRL_ABIST_CTRL0		0x2D4
+#define GRL_ABIST_CTRL1		0x2D8
+#define ABIST_EN			BIT(7)
+#define ABIST_DATA_FMT			(0x7 << 0)
+#define VIDEO_CFG_0		0x380
+#define VIDEO_CFG_1		0x384
+#define VIDEO_CFG_2		0x388
+#define VIDEO_CFG_3		0x38c
+#define VIDEO_CFG_4		0x390
+#define VIDEO_SOURCE_SEL		BIT(7)
+#define NORMAL_PATH			(1 << 7)
+#define GEN_RGB				(0 << 7)
+
+#define HDMI_SYS_CFG1C		0x000
+#define HDMI_ON				BIT(0)
+#define HDMI_RST			BIT(1)
+#define ANLG_ON				BIT(2)
+#define CFG10_DVI			BIT(3)
+#define HDMI_TST			BIT(3)
+#define SYS_KEYMASK1			(0xff << 8)
+#define SYS_KEYMASK2			(0xff << 16)
+#define AUD_OUTSYNC_EN			BIT(24)
+#define AUD_OUTSYNC_PRE_EN		BIT(25)
+#define I2CM_ON				BIT(26)
+#define E2PROM_TYPE_8BIT		BIT(27)
+#define MCM_E2PROM_ON			BIT(28)
+#define EXT_E2PROM_ON			BIT(29)
+#define HTPLG_PIN_SEL_OFF		BIT(30)
+#define AES_EFUSE_ENABLE		BIT(31)
+#define HDMI_SYS_CFG20		0x004
+#define DEEP_COLOR_MODE_MASK		(3 << 1)
+#define COLOR_8BIT_MODE			(0 << 1)
+#define COLOR_10BIT_MODE		(1 << 1)
+#define COLOR_12BIT_MODE		(2 << 1)
+#define COLOR_16BIT_MODE		(3 << 1)
+#define DEEP_COLOR_EN			BIT(0)
+#define HDMI_AUDIO_TEST_SEL		BIT(8)
+#define HDMI2P0_EN			BIT(11)
+#define HDMI_OUT_FIFO_EN		BIT(16)
+#define HDMI_OUT_FIFO_CLK_INV		BIT(17)
+#define MHL_MODE_ON			BIT(28)
+#define MHL_PP_MODE			BIT(29)
+#define MHL_SYNC_AUTO_EN		BIT(30)
+#define HDMI_PCLK_FREE_RUN		BIT(31)
+
+#define MTK_SIP_SET_AUTHORIZED_SECURE_REG 0x82000001
+#endif
diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
new file mode 100644
index 000000000..b288bb6ee
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
@@ -0,0 +1,314 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ */
+
+#include <drm/drm_fourcc.h>
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/soc/mediatek/mtk-cmdq.h>
+
+#include "mtk_disp_drv.h"
+#include "mtk_drm_drv.h"
+#include "mtk_mdp_rdma.h"
+
+#define MDP_RDMA_EN			0x000
+#define FLD_ROT_ENABLE				BIT(0)
+#define MDP_RDMA_RESET			0x008
+#define MDP_RDMA_CON			0x020
+#define FLD_OUTPUT_10B				BIT(5)
+#define FLD_SIMPLE_MODE				BIT(4)
+#define MDP_RDMA_GMCIF_CON		0x028
+#define FLD_COMMAND_DIV				BIT(0)
+#define FLD_EXT_PREULTRA_EN			BIT(3)
+#define FLD_RD_REQ_TYPE				GENMASK(7, 4)
+#define VAL_RD_REQ_TYPE_BURST_8_ACCESS		7
+#define FLD_ULTRA_EN				GENMASK(13, 12)
+#define VAL_ULTRA_EN_ENABLE			1
+#define FLD_PRE_ULTRA_EN			GENMASK(17, 16)
+#define VAL_PRE_ULTRA_EN_ENABLE			1
+#define FLD_EXT_ULTRA_EN			BIT(18)
+#define MDP_RDMA_SRC_CON		0x030
+#define FLD_OUTPUT_ARGB				BIT(25)
+#define FLD_BIT_NUMBER				GENMASK(19, 18)
+#define FLD_SWAP				BIT(14)
+#define FLD_UNIFORM_CONFIG			BIT(17)
+#define RDMA_INPUT_10BIT			BIT(18)
+#define FLD_SRC_FORMAT				GENMASK(3, 0)
+#define MDP_RDMA_COMP_CON		0x038
+#define FLD_AFBC_EN				BIT(22)
+#define FLD_AFBC_YUV_TRANSFORM			BIT(21)
+#define FLD_UFBDC_EN				BIT(12)
+#define MDP_RDMA_MF_BKGD_SIZE_IN_BYTE	0x060
+#define FLD_MF_BKGD_WB				GENMASK(22, 0)
+#define MDP_RDMA_MF_SRC_SIZE		0x070
+#define FLD_MF_SRC_H				GENMASK(30, 16)
+#define FLD_MF_SRC_W				GENMASK(14, 0)
+#define MDP_RDMA_MF_CLIP_SIZE		0x078
+#define FLD_MF_CLIP_H				GENMASK(30, 16)
+#define FLD_MF_CLIP_W				GENMASK(14, 0)
+#define MDP_RDMA_SRC_OFFSET_0		0x118
+#define FLD_SRC_OFFSET_0			GENMASK(31, 0)
+#define MDP_RDMA_TRANSFORM_0		0x200
+#define FLD_INT_MATRIX_SEL			GENMASK(27, 23)
+#define FLD_TRANS_EN				BIT(16)
+#define MDP_RDMA_SRC_BASE_0		0xf00
+#define FLD_SRC_BASE_0				GENMASK(31, 0)
+
+#define RDMA_CSC_FULL709_TO_RGB			5
+#define RDMA_CSC_BT601_TO_RGB			6
+
+enum rdma_format {
+	RDMA_INPUT_FORMAT_RGB565 = 0,
+	RDMA_INPUT_FORMAT_RGB888 = 1,
+	RDMA_INPUT_FORMAT_RGBA8888 = 2,
+	RDMA_INPUT_FORMAT_ARGB8888 = 3,
+	RDMA_INPUT_FORMAT_UYVY = 4,
+	RDMA_INPUT_FORMAT_YUY2 = 5,
+	RDMA_INPUT_FORMAT_Y8 = 7,
+	RDMA_INPUT_FORMAT_YV12 = 8,
+	RDMA_INPUT_FORMAT_UYVY_3PL = 9,
+	RDMA_INPUT_FORMAT_NV12 = 12,
+	RDMA_INPUT_FORMAT_UYVY_2PL = 13,
+	RDMA_INPUT_FORMAT_Y410 = 14
+};
+
+struct mtk_mdp_rdma {
+	void __iomem		*regs;
+	struct clk		*clk;
+	struct cmdq_client_reg	cmdq_reg;
+};
+
+static unsigned int rdma_fmt_convert(unsigned int fmt)
+{
+	switch (fmt) {
+	default:
+	case DRM_FORMAT_RGB565:
+		return RDMA_INPUT_FORMAT_RGB565;
+	case DRM_FORMAT_BGR565:
+		return RDMA_INPUT_FORMAT_RGB565 | FLD_SWAP;
+	case DRM_FORMAT_RGB888:
+		return RDMA_INPUT_FORMAT_RGB888;
+	case DRM_FORMAT_BGR888:
+		return RDMA_INPUT_FORMAT_RGB888 | FLD_SWAP;
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_RGBA8888:
+		return RDMA_INPUT_FORMAT_ARGB8888;
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_BGRA8888:
+		return RDMA_INPUT_FORMAT_ARGB8888 | FLD_SWAP;
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+		return RDMA_INPUT_FORMAT_RGBA8888;
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_ABGR8888:
+		return RDMA_INPUT_FORMAT_RGBA8888 | FLD_SWAP;
+	case DRM_FORMAT_ABGR2101010:
+		return RDMA_INPUT_FORMAT_RGBA8888 | FLD_SWAP | RDMA_INPUT_10BIT;
+	case DRM_FORMAT_ARGB2101010:
+		return RDMA_INPUT_FORMAT_RGBA8888 | RDMA_INPUT_10BIT;
+	case DRM_FORMAT_RGBA1010102:
+		return RDMA_INPUT_FORMAT_ARGB8888 | FLD_SWAP | RDMA_INPUT_10BIT;
+	case DRM_FORMAT_BGRA1010102:
+		return RDMA_INPUT_FORMAT_ARGB8888 | RDMA_INPUT_10BIT;
+	case DRM_FORMAT_UYVY:
+		return RDMA_INPUT_FORMAT_UYVY;
+	case DRM_FORMAT_YUYV:
+		return RDMA_INPUT_FORMAT_YUY2;
+	}
+}
+
+static unsigned int rdma_color_convert(unsigned int color_encoding)
+{
+	switch (color_encoding) {
+	default:
+	case DRM_COLOR_YCBCR_BT709:
+		return RDMA_CSC_FULL709_TO_RGB;
+	case DRM_COLOR_YCBCR_BT601:
+		return RDMA_CSC_BT601_TO_RGB;
+	}
+}
+
+static void mtk_mdp_rdma_fifo_config(struct device *dev, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_mdp_rdma *priv = dev_get_drvdata(dev);
+
+	mtk_ddp_write_mask(cmdq_pkt, FLD_EXT_ULTRA_EN | VAL_PRE_ULTRA_EN_ENABLE << 16 |
+			   VAL_ULTRA_EN_ENABLE << 12 | VAL_RD_REQ_TYPE_BURST_8_ACCESS << 4 |
+			   FLD_EXT_PREULTRA_EN | FLD_COMMAND_DIV, &priv->cmdq_reg,
+			   priv->regs, MDP_RDMA_GMCIF_CON, FLD_EXT_ULTRA_EN |
+			   FLD_PRE_ULTRA_EN | FLD_ULTRA_EN | FLD_RD_REQ_TYPE |
+			   FLD_EXT_PREULTRA_EN | FLD_COMMAND_DIV);
+}
+
+void mtk_mdp_rdma_start(struct device *dev, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_mdp_rdma *priv = dev_get_drvdata(dev);
+
+	mtk_ddp_write_mask(cmdq_pkt, FLD_ROT_ENABLE, &priv->cmdq_reg,
+			   priv->regs, MDP_RDMA_EN, FLD_ROT_ENABLE);
+}
+
+void mtk_mdp_rdma_stop(struct device *dev, struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_mdp_rdma *priv = dev_get_drvdata(dev);
+
+	mtk_ddp_write_mask(cmdq_pkt, 0, &priv->cmdq_reg,
+			   priv->regs, MDP_RDMA_EN, FLD_ROT_ENABLE);
+	mtk_ddp_write(cmdq_pkt, 1, &priv->cmdq_reg, priv->regs, MDP_RDMA_RESET);
+	mtk_ddp_write(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs, MDP_RDMA_RESET);
+}
+
+void mtk_mdp_rdma_config(struct device *dev, struct mtk_mdp_rdma_cfg *cfg,
+			 struct cmdq_pkt *cmdq_pkt)
+{
+	struct mtk_mdp_rdma *priv = dev_get_drvdata(dev);
+	const struct drm_format_info *fmt_info = drm_format_info(cfg->fmt);
+	bool csc_enable = fmt_info->is_yuv ? true : false;
+	unsigned int src_pitch_y = cfg->pitch;
+	unsigned int offset_y = 0;
+
+	mtk_mdp_rdma_fifo_config(dev, cmdq_pkt);
+
+	mtk_ddp_write_mask(cmdq_pkt, FLD_UNIFORM_CONFIG, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_SRC_CON, FLD_UNIFORM_CONFIG);
+	mtk_ddp_write_mask(cmdq_pkt, rdma_fmt_convert(cfg->fmt), &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_SRC_CON, FLD_SWAP | FLD_SRC_FORMAT | FLD_BIT_NUMBER);
+
+	if (!csc_enable && fmt_info->has_alpha)
+		mtk_ddp_write_mask(cmdq_pkt, FLD_OUTPUT_ARGB, &priv->cmdq_reg,
+				   priv->regs, MDP_RDMA_SRC_CON, FLD_OUTPUT_ARGB);
+	else
+		mtk_ddp_write_mask(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs,
+				   MDP_RDMA_SRC_CON, FLD_OUTPUT_ARGB);
+
+	mtk_ddp_write_mask(cmdq_pkt, cfg->addr0, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_SRC_BASE_0, FLD_SRC_BASE_0);
+
+	mtk_ddp_write_mask(cmdq_pkt, src_pitch_y, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_MF_BKGD_SIZE_IN_BYTE, FLD_MF_BKGD_WB);
+
+	mtk_ddp_write_mask(cmdq_pkt, 0, &priv->cmdq_reg, priv->regs, MDP_RDMA_COMP_CON,
+			   FLD_AFBC_YUV_TRANSFORM | FLD_UFBDC_EN | FLD_AFBC_EN);
+	mtk_ddp_write_mask(cmdq_pkt, FLD_OUTPUT_10B, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_CON, FLD_OUTPUT_10B);
+	mtk_ddp_write_mask(cmdq_pkt, FLD_SIMPLE_MODE, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_CON, FLD_SIMPLE_MODE);
+	if (csc_enable)
+		mtk_ddp_write_mask(cmdq_pkt, rdma_color_convert(cfg->color_encoding) << 23,
+				   &priv->cmdq_reg, priv->regs, MDP_RDMA_TRANSFORM_0,
+				   FLD_INT_MATRIX_SEL);
+	mtk_ddp_write_mask(cmdq_pkt, csc_enable << 16, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_TRANSFORM_0, FLD_TRANS_EN);
+
+	offset_y  = cfg->x_left * fmt_info->cpp[0] + cfg->y_top * src_pitch_y;
+
+	mtk_ddp_write_mask(cmdq_pkt, offset_y, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_SRC_OFFSET_0, FLD_SRC_OFFSET_0);
+	mtk_ddp_write_mask(cmdq_pkt, cfg->width, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_MF_SRC_SIZE, FLD_MF_SRC_W);
+	mtk_ddp_write_mask(cmdq_pkt, cfg->height << 16, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_MF_SRC_SIZE, FLD_MF_SRC_H);
+	mtk_ddp_write_mask(cmdq_pkt, cfg->width, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_MF_CLIP_SIZE, FLD_MF_CLIP_W);
+	mtk_ddp_write_mask(cmdq_pkt, cfg->height << 16, &priv->cmdq_reg, priv->regs,
+			   MDP_RDMA_MF_CLIP_SIZE, FLD_MF_CLIP_H);
+}
+
+int mtk_mdp_rdma_clk_enable(struct device *dev)
+{
+	struct mtk_mdp_rdma *rdma = dev_get_drvdata(dev);
+
+	return clk_prepare_enable(rdma->clk);
+}
+
+void mtk_mdp_rdma_clk_disable(struct device *dev)
+{
+	struct mtk_mdp_rdma *rdma = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(rdma->clk);
+}
+
+static int mtk_mdp_rdma_bind(struct device *dev, struct device *master,
+			     void *data)
+{
+	return 0;
+}
+
+static void mtk_mdp_rdma_unbind(struct device *dev, struct device *master,
+				void *data)
+{
+}
+
+static const struct component_ops mtk_mdp_rdma_component_ops = {
+	.bind	= mtk_mdp_rdma_bind,
+	.unbind = mtk_mdp_rdma_unbind,
+};
+
+static int mtk_mdp_rdma_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct mtk_mdp_rdma *priv;
+	int ret = 0;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->regs)) {
+		dev_err(dev, "failed to ioremap rdma\n");
+		return PTR_ERR(priv->regs);
+	}
+
+	priv->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->clk)) {
+		dev_err(dev, "failed to get rdma clk\n");
+		return PTR_ERR(priv->clk);
+	}
+
+#if IS_REACHABLE(CONFIG_MTK_CMDQ)
+	ret = cmdq_dev_get_client_reg(dev, &priv->cmdq_reg, 0);
+	if (ret)
+		dev_dbg(dev, "get mediatek,gce-client-reg fail!\n");
+#endif
+	platform_set_drvdata(pdev, priv);
+
+	pm_runtime_enable(dev);
+
+	ret = component_add(dev, &mtk_mdp_rdma_component_ops);
+	if (ret != 0) {
+		pm_runtime_disable(dev);
+		dev_err(dev, "Failed to add component: %d\n", ret);
+	}
+	return ret;
+}
+
+static int mtk_mdp_rdma_remove(struct platform_device *pdev)
+{
+	component_del(&pdev->dev, &mtk_mdp_rdma_component_ops);
+	pm_runtime_disable(&pdev->dev);
+	return 0;
+}
+
+static const struct of_device_id mtk_mdp_rdma_driver_dt_match[] = {
+	{ .compatible = "mediatek,mt8195-vdo1-rdma", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_mdp_rdma_driver_dt_match);
+
+struct platform_driver mtk_mdp_rdma_driver = {
+	.probe = mtk_mdp_rdma_probe,
+	.remove = mtk_mdp_rdma_remove,
+	.driver = {
+		.name = "mediatek-mdp-rdma",
+		.owner = THIS_MODULE,
+		.of_match_table = mtk_mdp_rdma_driver_dt_match,
+	},
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h
new file mode 100644
index 000000000..9943ee3aa
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ */
+
+#ifndef __MTK_MDP_RDMA_H__
+#define __MTK_MDP_RDMA_H__
+
+struct mtk_mdp_rdma_cfg {
+	unsigned int	pitch;
+	unsigned int	addr0;
+	unsigned int	width;
+	unsigned int	height;
+	unsigned int	x_left;
+	unsigned int	y_top;
+	int		fmt;
+	int		color_encoding;
+};
+
+#endif // __MTK_MDP_RDMA_H__