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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c')
-rw-r--r--drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c688
1 files changed, 688 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
new file mode 100644
index 000000000..ae857bf8b
--- /dev/null
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -0,0 +1,688 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
+ */
+
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/phy/phy.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/bridge/dw_hdmi.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_of.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/drm_simple_kms_helper.h>
+
+#include "rockchip_drm_drv.h"
+#include "rockchip_drm_vop.h"
+
+#define RK3228_GRF_SOC_CON2 0x0408
+#define RK3228_HDMI_SDAIN_MSK BIT(14)
+#define RK3228_HDMI_SCLIN_MSK BIT(13)
+#define RK3228_GRF_SOC_CON6 0x0418
+#define RK3228_HDMI_HPD_VSEL BIT(6)
+#define RK3228_HDMI_SDA_VSEL BIT(5)
+#define RK3228_HDMI_SCL_VSEL BIT(4)
+
+#define RK3288_GRF_SOC_CON6 0x025C
+#define RK3288_HDMI_LCDC_SEL BIT(4)
+#define RK3328_GRF_SOC_CON2 0x0408
+
+#define RK3328_HDMI_SDAIN_MSK BIT(11)
+#define RK3328_HDMI_SCLIN_MSK BIT(10)
+#define RK3328_HDMI_HPD_IOE BIT(2)
+#define RK3328_GRF_SOC_CON3 0x040c
+/* need to be unset if hdmi or i2c should control voltage */
+#define RK3328_HDMI_SDA5V_GRF BIT(15)
+#define RK3328_HDMI_SCL5V_GRF BIT(14)
+#define RK3328_HDMI_HPD5V_GRF BIT(13)
+#define RK3328_HDMI_CEC5V_GRF BIT(12)
+#define RK3328_GRF_SOC_CON4 0x0410
+#define RK3328_HDMI_HPD_SARADC BIT(13)
+#define RK3328_HDMI_CEC_5V BIT(11)
+#define RK3328_HDMI_SDA_5V BIT(10)
+#define RK3328_HDMI_SCL_5V BIT(9)
+#define RK3328_HDMI_HPD_5V BIT(8)
+
+#define RK3399_GRF_SOC_CON20 0x6250
+#define RK3399_HDMI_LCDC_SEL BIT(6)
+
+#define RK3568_GRF_VO_CON1 0x0364
+#define RK3568_HDMI_SDAIN_MSK BIT(15)
+#define RK3568_HDMI_SCLIN_MSK BIT(14)
+
+#define HIWORD_UPDATE(val, mask) (val | (mask) << 16)
+
+/**
+ * struct rockchip_hdmi_chip_data - splite the grf setting of kind of chips
+ * @lcdsel_grf_reg: grf register offset of lcdc select
+ * @lcdsel_big: reg value of selecting vop big for HDMI
+ * @lcdsel_lit: reg value of selecting vop little for HDMI
+ */
+struct rockchip_hdmi_chip_data {
+ int lcdsel_grf_reg;
+ u32 lcdsel_big;
+ u32 lcdsel_lit;
+};
+
+struct rockchip_hdmi {
+ struct device *dev;
+ struct regmap *regmap;
+ struct rockchip_encoder encoder;
+ const struct rockchip_hdmi_chip_data *chip_data;
+ struct clk *ref_clk;
+ struct clk *grf_clk;
+ struct dw_hdmi *hdmi;
+ struct regulator *avdd_0v9;
+ struct regulator *avdd_1v8;
+ struct phy *phy;
+};
+
+static struct rockchip_hdmi *to_rockchip_hdmi(struct drm_encoder *encoder)
+{
+ struct rockchip_encoder *rkencoder = to_rockchip_encoder(encoder);
+
+ return container_of(rkencoder, struct rockchip_hdmi, encoder);
+}
+
+static const struct dw_hdmi_mpll_config rockchip_mpll_cfg[] = {
+ {
+ 27000000, {
+ { 0x00b3, 0x0000},
+ { 0x2153, 0x0000},
+ { 0x40f3, 0x0000}
+ },
+ }, {
+ 36000000, {
+ { 0x00b3, 0x0000},
+ { 0x2153, 0x0000},
+ { 0x40f3, 0x0000}
+ },
+ }, {
+ 40000000, {
+ { 0x00b3, 0x0000},
+ { 0x2153, 0x0000},
+ { 0x40f3, 0x0000}
+ },
+ }, {
+ 54000000, {
+ { 0x0072, 0x0001},
+ { 0x2142, 0x0001},
+ { 0x40a2, 0x0001},
+ },
+ }, {
+ 65000000, {
+ { 0x0072, 0x0001},
+ { 0x2142, 0x0001},
+ { 0x40a2, 0x0001},
+ },
+ }, {
+ 66000000, {
+ { 0x013e, 0x0003},
+ { 0x217e, 0x0002},
+ { 0x4061, 0x0002}
+ },
+ }, {
+ 74250000, {
+ { 0x0072, 0x0001},
+ { 0x2145, 0x0002},
+ { 0x4061, 0x0002}
+ },
+ }, {
+ 83500000, {
+ { 0x0072, 0x0001},
+ },
+ }, {
+ 108000000, {
+ { 0x0051, 0x0002},
+ { 0x2145, 0x0002},
+ { 0x4061, 0x0002}
+ },
+ }, {
+ 106500000, {
+ { 0x0051, 0x0002},
+ { 0x2145, 0x0002},
+ { 0x4061, 0x0002}
+ },
+ }, {
+ 146250000, {
+ { 0x0051, 0x0002},
+ { 0x2145, 0x0002},
+ { 0x4061, 0x0002}
+ },
+ }, {
+ 148500000, {
+ { 0x0051, 0x0003},
+ { 0x214c, 0x0003},
+ { 0x4064, 0x0003}
+ },
+ }, {
+ ~0UL, {
+ { 0x00a0, 0x000a },
+ { 0x2001, 0x000f },
+ { 0x4002, 0x000f },
+ },
+ }
+};
+
+static const struct dw_hdmi_curr_ctrl rockchip_cur_ctr[] = {
+ /* pixelclk bpp8 bpp10 bpp12 */
+ {
+ 40000000, { 0x0018, 0x0018, 0x0018 },
+ }, {
+ 65000000, { 0x0028, 0x0028, 0x0028 },
+ }, {
+ 66000000, { 0x0038, 0x0038, 0x0038 },
+ }, {
+ 74250000, { 0x0028, 0x0038, 0x0038 },
+ }, {
+ 83500000, { 0x0028, 0x0038, 0x0038 },
+ }, {
+ 146250000, { 0x0038, 0x0038, 0x0038 },
+ }, {
+ 148500000, { 0x0000, 0x0038, 0x0038 },
+ }, {
+ ~0UL, { 0x0000, 0x0000, 0x0000},
+ }
+};
+
+static const struct dw_hdmi_phy_config rockchip_phy_config[] = {
+ /*pixelclk symbol term vlev*/
+ { 74250000, 0x8009, 0x0004, 0x0272},
+ { 148500000, 0x802b, 0x0004, 0x028d},
+ { 297000000, 0x8039, 0x0005, 0x028d},
+ { ~0UL, 0x0000, 0x0000, 0x0000}
+};
+
+static int rockchip_hdmi_parse_dt(struct rockchip_hdmi *hdmi)
+{
+ struct device_node *np = hdmi->dev->of_node;
+
+ hdmi->regmap = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
+ if (IS_ERR(hdmi->regmap)) {
+ DRM_DEV_ERROR(hdmi->dev, "Unable to get rockchip,grf\n");
+ return PTR_ERR(hdmi->regmap);
+ }
+
+ hdmi->ref_clk = devm_clk_get_optional(hdmi->dev, "ref");
+ if (!hdmi->ref_clk)
+ hdmi->ref_clk = devm_clk_get_optional(hdmi->dev, "vpll");
+
+ if (PTR_ERR(hdmi->ref_clk) == -EPROBE_DEFER) {
+ return -EPROBE_DEFER;
+ } else if (IS_ERR(hdmi->ref_clk)) {
+ DRM_DEV_ERROR(hdmi->dev, "failed to get reference clock\n");
+ return PTR_ERR(hdmi->ref_clk);
+ }
+
+ hdmi->grf_clk = devm_clk_get(hdmi->dev, "grf");
+ if (PTR_ERR(hdmi->grf_clk) == -ENOENT) {
+ hdmi->grf_clk = NULL;
+ } else if (PTR_ERR(hdmi->grf_clk) == -EPROBE_DEFER) {
+ return -EPROBE_DEFER;
+ } else if (IS_ERR(hdmi->grf_clk)) {
+ DRM_DEV_ERROR(hdmi->dev, "failed to get grf clock\n");
+ return PTR_ERR(hdmi->grf_clk);
+ }
+
+ hdmi->avdd_0v9 = devm_regulator_get(hdmi->dev, "avdd-0v9");
+ if (IS_ERR(hdmi->avdd_0v9))
+ return PTR_ERR(hdmi->avdd_0v9);
+
+ hdmi->avdd_1v8 = devm_regulator_get(hdmi->dev, "avdd-1v8");
+ if (IS_ERR(hdmi->avdd_1v8))
+ return PTR_ERR(hdmi->avdd_1v8);
+
+ return 0;
+}
+
+static enum drm_mode_status
+dw_hdmi_rockchip_mode_valid(struct dw_hdmi *hdmi, void *data,
+ const struct drm_display_info *info,
+ const struct drm_display_mode *mode)
+{
+ const struct dw_hdmi_mpll_config *mpll_cfg = rockchip_mpll_cfg;
+ int pclk = mode->clock * 1000;
+ bool valid = false;
+ int i;
+
+ for (i = 0; mpll_cfg[i].mpixelclock != (~0UL); i++) {
+ if (pclk == mpll_cfg[i].mpixelclock) {
+ valid = true;
+ break;
+ }
+ }
+
+ return (valid) ? MODE_OK : MODE_BAD;
+}
+
+static void dw_hdmi_rockchip_encoder_disable(struct drm_encoder *encoder)
+{
+}
+
+static bool
+dw_hdmi_rockchip_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ return true;
+}
+
+static void dw_hdmi_rockchip_encoder_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adj_mode)
+{
+ struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
+
+ clk_set_rate(hdmi->ref_clk, adj_mode->clock * 1000);
+}
+
+static void dw_hdmi_rockchip_encoder_enable(struct drm_encoder *encoder)
+{
+ struct rockchip_hdmi *hdmi = to_rockchip_hdmi(encoder);
+ u32 val;
+ int ret;
+
+ if (hdmi->chip_data->lcdsel_grf_reg < 0)
+ return;
+
+ ret = drm_of_encoder_active_endpoint_id(hdmi->dev->of_node, encoder);
+ if (ret)
+ val = hdmi->chip_data->lcdsel_lit;
+ else
+ val = hdmi->chip_data->lcdsel_big;
+
+ ret = clk_prepare_enable(hdmi->grf_clk);
+ if (ret < 0) {
+ DRM_DEV_ERROR(hdmi->dev, "failed to enable grfclk %d\n", ret);
+ return;
+ }
+
+ ret = regmap_write(hdmi->regmap, hdmi->chip_data->lcdsel_grf_reg, val);
+ if (ret != 0)
+ DRM_DEV_ERROR(hdmi->dev, "Could not write to GRF: %d\n", ret);
+
+ clk_disable_unprepare(hdmi->grf_clk);
+ DRM_DEV_DEBUG(hdmi->dev, "vop %s output to hdmi\n",
+ ret ? "LIT" : "BIG");
+}
+
+static int
+dw_hdmi_rockchip_encoder_atomic_check(struct drm_encoder *encoder,
+ struct drm_crtc_state *crtc_state,
+ struct drm_connector_state *conn_state)
+{
+ struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc_state);
+
+ s->output_mode = ROCKCHIP_OUT_MODE_AAAA;
+ s->output_type = DRM_MODE_CONNECTOR_HDMIA;
+
+ return 0;
+}
+
+static const struct drm_encoder_helper_funcs dw_hdmi_rockchip_encoder_helper_funcs = {
+ .mode_fixup = dw_hdmi_rockchip_encoder_mode_fixup,
+ .mode_set = dw_hdmi_rockchip_encoder_mode_set,
+ .enable = dw_hdmi_rockchip_encoder_enable,
+ .disable = dw_hdmi_rockchip_encoder_disable,
+ .atomic_check = dw_hdmi_rockchip_encoder_atomic_check,
+};
+
+static int dw_hdmi_rockchip_genphy_init(struct dw_hdmi *dw_hdmi, void *data,
+ const struct drm_display_info *display,
+ const struct drm_display_mode *mode)
+{
+ struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data;
+
+ return phy_power_on(hdmi->phy);
+}
+
+static void dw_hdmi_rockchip_genphy_disable(struct dw_hdmi *dw_hdmi, void *data)
+{
+ struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data;
+
+ phy_power_off(hdmi->phy);
+}
+
+static void dw_hdmi_rk3228_setup_hpd(struct dw_hdmi *dw_hdmi, void *data)
+{
+ struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data;
+
+ dw_hdmi_phy_setup_hpd(dw_hdmi, data);
+
+ regmap_write(hdmi->regmap,
+ RK3228_GRF_SOC_CON6,
+ HIWORD_UPDATE(RK3228_HDMI_HPD_VSEL | RK3228_HDMI_SDA_VSEL |
+ RK3228_HDMI_SCL_VSEL,
+ RK3228_HDMI_HPD_VSEL | RK3228_HDMI_SDA_VSEL |
+ RK3228_HDMI_SCL_VSEL));
+
+ regmap_write(hdmi->regmap,
+ RK3228_GRF_SOC_CON2,
+ HIWORD_UPDATE(RK3228_HDMI_SDAIN_MSK | RK3228_HDMI_SCLIN_MSK,
+ RK3228_HDMI_SDAIN_MSK | RK3228_HDMI_SCLIN_MSK));
+}
+
+static enum drm_connector_status
+dw_hdmi_rk3328_read_hpd(struct dw_hdmi *dw_hdmi, void *data)
+{
+ struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data;
+ enum drm_connector_status status;
+
+ status = dw_hdmi_phy_read_hpd(dw_hdmi, data);
+
+ if (status == connector_status_connected)
+ regmap_write(hdmi->regmap,
+ RK3328_GRF_SOC_CON4,
+ HIWORD_UPDATE(RK3328_HDMI_SDA_5V | RK3328_HDMI_SCL_5V,
+ RK3328_HDMI_SDA_5V | RK3328_HDMI_SCL_5V));
+ else
+ regmap_write(hdmi->regmap,
+ RK3328_GRF_SOC_CON4,
+ HIWORD_UPDATE(0, RK3328_HDMI_SDA_5V |
+ RK3328_HDMI_SCL_5V));
+ return status;
+}
+
+static void dw_hdmi_rk3328_setup_hpd(struct dw_hdmi *dw_hdmi, void *data)
+{
+ struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data;
+
+ dw_hdmi_phy_setup_hpd(dw_hdmi, data);
+
+ /* Enable and map pins to 3V grf-controlled io-voltage */
+ regmap_write(hdmi->regmap,
+ RK3328_GRF_SOC_CON4,
+ HIWORD_UPDATE(0, RK3328_HDMI_HPD_SARADC | RK3328_HDMI_CEC_5V |
+ RK3328_HDMI_SDA_5V | RK3328_HDMI_SCL_5V |
+ RK3328_HDMI_HPD_5V));
+ regmap_write(hdmi->regmap,
+ RK3328_GRF_SOC_CON3,
+ HIWORD_UPDATE(0, RK3328_HDMI_SDA5V_GRF | RK3328_HDMI_SCL5V_GRF |
+ RK3328_HDMI_HPD5V_GRF |
+ RK3328_HDMI_CEC5V_GRF));
+ regmap_write(hdmi->regmap,
+ RK3328_GRF_SOC_CON2,
+ HIWORD_UPDATE(RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK,
+ RK3328_HDMI_SDAIN_MSK | RK3328_HDMI_SCLIN_MSK |
+ RK3328_HDMI_HPD_IOE));
+}
+
+static const struct dw_hdmi_phy_ops rk3228_hdmi_phy_ops = {
+ .init = dw_hdmi_rockchip_genphy_init,
+ .disable = dw_hdmi_rockchip_genphy_disable,
+ .read_hpd = dw_hdmi_phy_read_hpd,
+ .update_hpd = dw_hdmi_phy_update_hpd,
+ .setup_hpd = dw_hdmi_rk3228_setup_hpd,
+};
+
+static struct rockchip_hdmi_chip_data rk3228_chip_data = {
+ .lcdsel_grf_reg = -1,
+};
+
+static const struct dw_hdmi_plat_data rk3228_hdmi_drv_data = {
+ .mode_valid = dw_hdmi_rockchip_mode_valid,
+ .mpll_cfg = rockchip_mpll_cfg,
+ .cur_ctr = rockchip_cur_ctr,
+ .phy_config = rockchip_phy_config,
+ .phy_data = &rk3228_chip_data,
+ .phy_ops = &rk3228_hdmi_phy_ops,
+ .phy_name = "inno_dw_hdmi_phy2",
+ .phy_force_vendor = true,
+};
+
+static struct rockchip_hdmi_chip_data rk3288_chip_data = {
+ .lcdsel_grf_reg = RK3288_GRF_SOC_CON6,
+ .lcdsel_big = HIWORD_UPDATE(0, RK3288_HDMI_LCDC_SEL),
+ .lcdsel_lit = HIWORD_UPDATE(RK3288_HDMI_LCDC_SEL, RK3288_HDMI_LCDC_SEL),
+};
+
+static const struct dw_hdmi_plat_data rk3288_hdmi_drv_data = {
+ .mode_valid = dw_hdmi_rockchip_mode_valid,
+ .mpll_cfg = rockchip_mpll_cfg,
+ .cur_ctr = rockchip_cur_ctr,
+ .phy_config = rockchip_phy_config,
+ .phy_data = &rk3288_chip_data,
+};
+
+static const struct dw_hdmi_phy_ops rk3328_hdmi_phy_ops = {
+ .init = dw_hdmi_rockchip_genphy_init,
+ .disable = dw_hdmi_rockchip_genphy_disable,
+ .read_hpd = dw_hdmi_rk3328_read_hpd,
+ .update_hpd = dw_hdmi_phy_update_hpd,
+ .setup_hpd = dw_hdmi_rk3328_setup_hpd,
+};
+
+static struct rockchip_hdmi_chip_data rk3328_chip_data = {
+ .lcdsel_grf_reg = -1,
+};
+
+static const struct dw_hdmi_plat_data rk3328_hdmi_drv_data = {
+ .mode_valid = dw_hdmi_rockchip_mode_valid,
+ .mpll_cfg = rockchip_mpll_cfg,
+ .cur_ctr = rockchip_cur_ctr,
+ .phy_config = rockchip_phy_config,
+ .phy_data = &rk3328_chip_data,
+ .phy_ops = &rk3328_hdmi_phy_ops,
+ .phy_name = "inno_dw_hdmi_phy2",
+ .phy_force_vendor = true,
+ .use_drm_infoframe = true,
+};
+
+static struct rockchip_hdmi_chip_data rk3399_chip_data = {
+ .lcdsel_grf_reg = RK3399_GRF_SOC_CON20,
+ .lcdsel_big = HIWORD_UPDATE(0, RK3399_HDMI_LCDC_SEL),
+ .lcdsel_lit = HIWORD_UPDATE(RK3399_HDMI_LCDC_SEL, RK3399_HDMI_LCDC_SEL),
+};
+
+static const struct dw_hdmi_plat_data rk3399_hdmi_drv_data = {
+ .mode_valid = dw_hdmi_rockchip_mode_valid,
+ .mpll_cfg = rockchip_mpll_cfg,
+ .cur_ctr = rockchip_cur_ctr,
+ .phy_config = rockchip_phy_config,
+ .phy_data = &rk3399_chip_data,
+ .use_drm_infoframe = true,
+};
+
+static struct rockchip_hdmi_chip_data rk3568_chip_data = {
+ .lcdsel_grf_reg = -1,
+};
+
+static const struct dw_hdmi_plat_data rk3568_hdmi_drv_data = {
+ .mode_valid = dw_hdmi_rockchip_mode_valid,
+ .mpll_cfg = rockchip_mpll_cfg,
+ .cur_ctr = rockchip_cur_ctr,
+ .phy_config = rockchip_phy_config,
+ .phy_data = &rk3568_chip_data,
+ .use_drm_infoframe = true,
+};
+
+static const struct of_device_id dw_hdmi_rockchip_dt_ids[] = {
+ { .compatible = "rockchip,rk3228-dw-hdmi",
+ .data = &rk3228_hdmi_drv_data
+ },
+ { .compatible = "rockchip,rk3288-dw-hdmi",
+ .data = &rk3288_hdmi_drv_data
+ },
+ { .compatible = "rockchip,rk3328-dw-hdmi",
+ .data = &rk3328_hdmi_drv_data
+ },
+ { .compatible = "rockchip,rk3399-dw-hdmi",
+ .data = &rk3399_hdmi_drv_data
+ },
+ { .compatible = "rockchip,rk3568-dw-hdmi",
+ .data = &rk3568_hdmi_drv_data
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, dw_hdmi_rockchip_dt_ids);
+
+static int dw_hdmi_rockchip_bind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct dw_hdmi_plat_data *plat_data;
+ const struct of_device_id *match;
+ struct drm_device *drm = data;
+ struct drm_encoder *encoder;
+ struct rockchip_hdmi *hdmi;
+ int ret;
+
+ if (!pdev->dev.of_node)
+ return -ENODEV;
+
+ hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
+ if (!hdmi)
+ return -ENOMEM;
+
+ match = of_match_node(dw_hdmi_rockchip_dt_ids, pdev->dev.of_node);
+ plat_data = devm_kmemdup(&pdev->dev, match->data,
+ sizeof(*plat_data), GFP_KERNEL);
+ if (!plat_data)
+ return -ENOMEM;
+
+ hdmi->dev = &pdev->dev;
+ hdmi->chip_data = plat_data->phy_data;
+ plat_data->phy_data = hdmi;
+ encoder = &hdmi->encoder.encoder;
+
+ encoder->possible_crtcs = drm_of_find_possible_crtcs(drm, dev->of_node);
+ rockchip_drm_encoder_set_crtc_endpoint_id(&hdmi->encoder,
+ dev->of_node, 0, 0);
+
+ /*
+ * If we failed to find the CRTC(s) which this encoder is
+ * supposed to be connected to, it's because the CRTC has
+ * not been registered yet. Defer probing, and hope that
+ * the required CRTC is added later.
+ */
+ if (encoder->possible_crtcs == 0)
+ return -EPROBE_DEFER;
+
+ ret = rockchip_hdmi_parse_dt(hdmi);
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
+ DRM_DEV_ERROR(hdmi->dev, "Unable to parse OF data\n");
+ return ret;
+ }
+
+ hdmi->phy = devm_phy_optional_get(dev, "hdmi");
+ if (IS_ERR(hdmi->phy)) {
+ ret = PTR_ERR(hdmi->phy);
+ if (ret != -EPROBE_DEFER)
+ DRM_DEV_ERROR(hdmi->dev, "failed to get phy\n");
+ return ret;
+ }
+
+ ret = regulator_enable(hdmi->avdd_0v9);
+ if (ret) {
+ DRM_DEV_ERROR(hdmi->dev, "failed to enable avdd0v9: %d\n", ret);
+ goto err_avdd_0v9;
+ }
+
+ ret = regulator_enable(hdmi->avdd_1v8);
+ if (ret) {
+ DRM_DEV_ERROR(hdmi->dev, "failed to enable avdd1v8: %d\n", ret);
+ goto err_avdd_1v8;
+ }
+
+ ret = clk_prepare_enable(hdmi->ref_clk);
+ if (ret) {
+ DRM_DEV_ERROR(hdmi->dev, "Failed to enable HDMI reference clock: %d\n",
+ ret);
+ goto err_clk;
+ }
+
+ if (hdmi->chip_data == &rk3568_chip_data) {
+ regmap_write(hdmi->regmap, RK3568_GRF_VO_CON1,
+ HIWORD_UPDATE(RK3568_HDMI_SDAIN_MSK |
+ RK3568_HDMI_SCLIN_MSK,
+ RK3568_HDMI_SDAIN_MSK |
+ RK3568_HDMI_SCLIN_MSK));
+ }
+
+ drm_encoder_helper_add(encoder, &dw_hdmi_rockchip_encoder_helper_funcs);
+ drm_simple_encoder_init(drm, encoder, DRM_MODE_ENCODER_TMDS);
+
+ platform_set_drvdata(pdev, hdmi);
+
+ hdmi->hdmi = dw_hdmi_bind(pdev, encoder, plat_data);
+
+ /*
+ * If dw_hdmi_bind() fails we'll never call dw_hdmi_unbind(),
+ * which would have called the encoder cleanup. Do it manually.
+ */
+ if (IS_ERR(hdmi->hdmi)) {
+ ret = PTR_ERR(hdmi->hdmi);
+ goto err_bind;
+ }
+
+ return 0;
+
+err_bind:
+ drm_encoder_cleanup(encoder);
+ clk_disable_unprepare(hdmi->ref_clk);
+err_clk:
+ regulator_disable(hdmi->avdd_1v8);
+err_avdd_1v8:
+ regulator_disable(hdmi->avdd_0v9);
+err_avdd_0v9:
+ return ret;
+}
+
+static void dw_hdmi_rockchip_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ struct rockchip_hdmi *hdmi = dev_get_drvdata(dev);
+
+ dw_hdmi_unbind(hdmi->hdmi);
+ drm_encoder_cleanup(&hdmi->encoder.encoder);
+ clk_disable_unprepare(hdmi->ref_clk);
+
+ regulator_disable(hdmi->avdd_1v8);
+ regulator_disable(hdmi->avdd_0v9);
+}
+
+static const struct component_ops dw_hdmi_rockchip_ops = {
+ .bind = dw_hdmi_rockchip_bind,
+ .unbind = dw_hdmi_rockchip_unbind,
+};
+
+static int dw_hdmi_rockchip_probe(struct platform_device *pdev)
+{
+ return component_add(&pdev->dev, &dw_hdmi_rockchip_ops);
+}
+
+static int dw_hdmi_rockchip_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &dw_hdmi_rockchip_ops);
+
+ return 0;
+}
+
+static int __maybe_unused dw_hdmi_rockchip_resume(struct device *dev)
+{
+ struct rockchip_hdmi *hdmi = dev_get_drvdata(dev);
+
+ dw_hdmi_resume(hdmi->hdmi);
+
+ return 0;
+}
+
+static const struct dev_pm_ops dw_hdmi_rockchip_pm = {
+ SET_SYSTEM_SLEEP_PM_OPS(NULL, dw_hdmi_rockchip_resume)
+};
+
+struct platform_driver dw_hdmi_rockchip_pltfm_driver = {
+ .probe = dw_hdmi_rockchip_probe,
+ .remove = dw_hdmi_rockchip_remove,
+ .driver = {
+ .name = "dwhdmi-rockchip",
+ .pm = &dw_hdmi_rockchip_pm,
+ .of_match_table = dw_hdmi_rockchip_dt_ids,
+ },
+};