drm/msm/hdmi: HDMI 8996 PHY/PLL support

Add support for the HDMI PHY/PLL found in MSM8996/APQ8096.

Unlike the previous PHYs supported in the driver, this doesn't need
the powerup/powerdown ops. The PLL prepare/unprepare clock ops
enable/disable the phy itself.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/Makefile

@@ -54,6 +54,7 @@ msm-y := \
 msm-$(CONFIG_DRM_FBDEV_EMULATION) += msm_fbdev.o
 msm-$(CONFIG_COMMON_CLK) += mdp/mdp4/mdp4_lvds_pll.o
 msm-$(CONFIG_COMMON_CLK) += hdmi/hdmi_pll_8960.o
+msm-$(CONFIG_COMMON_CLK) += hdmi/hdmi_phy_8996.o
 
 msm-$(CONFIG_DRM_MSM_DSI) += dsi/dsi.o \
 			mdp/mdp4/mdp4_dsi_encoder.o \

drivers/gpu/drm/msm/hdmi/hdmi.h

@@ -147,6 +147,7 @@ enum hdmi_phy_type {
 	MSM_HDMI_PHY_8x60,
 	MSM_HDMI_PHY_8960,
 	MSM_HDMI_PHY_8x74,
+	MSM_HDMI_PHY_8996,
 	MSM_HDMI_PHY_MAX,
 };
 
@@ -163,6 +164,7 @@ struct hdmi_phy_cfg {
 extern const struct hdmi_phy_cfg hdmi_phy_8x60_cfg;
 extern const struct hdmi_phy_cfg hdmi_phy_8960_cfg;
 extern const struct hdmi_phy_cfg hdmi_phy_8x74_cfg;
+extern const struct hdmi_phy_cfg hdmi_phy_8996_cfg;
 
 struct hdmi_phy {
 	struct platform_device *pdev;
@@ -192,11 +194,17 @@ void __exit hdmi_phy_driver_unregister(void);
 
 #ifdef CONFIG_COMMON_CLK
 int hdmi_pll_8960_init(struct platform_device *pdev);
+int hdmi_pll_8996_init(struct platform_device *pdev);
 #else
 int hdmi_pll_8960_init(struct platform_device *pdev);
 {
 	return -ENODEV;
 }
+
+int hdmi_pll_8996_init(struct platform_device *pdev)
+{
+	return -ENODEV;
+}
 #endif
 
 /*

drivers/gpu/drm/msm/hdmi/hdmi_phy.c

@@ -127,6 +127,9 @@ static int hdmi_phy_pll_init(struct platform_device *pdev,
 	case MSM_HDMI_PHY_8960:
 		ret = hdmi_pll_8960_init(pdev);
 		break;
+	case MSM_HDMI_PHY_8996:
+		ret = hdmi_pll_8996_init(pdev);
+		break;
 	/*
 	 * we don't have PLL support for these, don't report an error for now
 	 */
@@ -202,6 +205,8 @@ static const struct of_device_id hdmi_phy_dt_match[] = {
 	  .data = &hdmi_phy_8x74_cfg },
 	{ .compatible = "qcom,hdmi-phy-8084",
 	  .data = &hdmi_phy_8x74_cfg },
+	{ .compatible = "qcom,hdmi-phy-8996",
+	  .data = &hdmi_phy_8996_cfg },
 	{}
 };