Adding upstream version 6.1.76.upstream/6.1.76upstream

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

1 files changed, 169 insertions, 0 deletions

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,
+	},
+};