drm/msm: add msm8998 hdmi phy/pll support

Add support for the HDMI PHY as present on the Qualcomm MSM8998 SoC.
This code is mostly copy & paste of the vendor code from msm-4.4
kernel.lnx.4.4.r38-rel.

Signed-off-by: Arnaud Vrac <[email protected]>
Reviewed-by: Dmitry Baryshkov <[email protected]>
Signed-off-by: Marc Gonzalez <[email protected]>
Patchwork: https://patchwork.freedesktop.org/patch/605631/
Link: https://lore.kernel.org/r/[email protected]
[DB: replaced division with do_div64 to fix build issues on ARM32]
Signed-off-by: Dmitry Baryshkov <[email protected]>

Author: rawoul

drivers/gpu/drm/msm/Makefile

@@ -37,6 +37,7 @@ msm-display-$(CONFIG_DRM_MSM_HDMI) += \
 	hdmi/hdmi_phy.o \
 	hdmi/hdmi_phy_8960.o \
 	hdmi/hdmi_phy_8996.o \
+	hdmi/hdmi_phy_8998.o \
 	hdmi/hdmi_phy_8x60.o \
 	hdmi/hdmi_phy_8x74.o \
 	hdmi/hdmi_pll_8960.o \

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

@@ -137,6 +137,7 @@ enum hdmi_phy_type {
 	MSM_HDMI_PHY_8960,
 	MSM_HDMI_PHY_8x74,
 	MSM_HDMI_PHY_8996,
+	MSM_HDMI_PHY_8998,
 	MSM_HDMI_PHY_MAX,
 };
 
@@ -154,6 +155,7 @@ extern const struct hdmi_phy_cfg msm_hdmi_phy_8x60_cfg;
 extern const struct hdmi_phy_cfg msm_hdmi_phy_8960_cfg;
 extern const struct hdmi_phy_cfg msm_hdmi_phy_8x74_cfg;
 extern const struct hdmi_phy_cfg msm_hdmi_phy_8996_cfg;
+extern const struct hdmi_phy_cfg msm_hdmi_phy_8998_cfg;
 
 struct hdmi_phy {
 	struct platform_device *pdev;
@@ -184,6 +186,7 @@ void __exit msm_hdmi_phy_driver_unregister(void);
 #ifdef CONFIG_COMMON_CLK
 int msm_hdmi_pll_8960_init(struct platform_device *pdev);
 int msm_hdmi_pll_8996_init(struct platform_device *pdev);
+int msm_hdmi_pll_8998_init(struct platform_device *pdev);
 #else
 static inline int msm_hdmi_pll_8960_init(struct platform_device *pdev)
 {
@@ -194,6 +197,11 @@ static inline int msm_hdmi_pll_8996_init(struct platform_device *pdev)
 {
 	return -ENODEV;
 }
+
+static inline int msm_hdmi_pll_8998_init(struct platform_device *pdev)
+{
+	return -ENODEV;
+}
 #endif
 
 /*

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

@@ -118,6 +118,9 @@ static int msm_hdmi_phy_pll_init(struct platform_device *pdev,
 	case MSM_HDMI_PHY_8996:
 		ret = msm_hdmi_pll_8996_init(pdev);
 		break;
+	case MSM_HDMI_PHY_8998:
+		ret = msm_hdmi_pll_8998_init(pdev);
+		break;
 	/*
 	 * we don't have PLL support for these, don't report an error for now
 	 */
@@ -193,6 +196,8 @@ static const struct of_device_id msm_hdmi_phy_dt_match[] = {
 	  .data = &msm_hdmi_phy_8x74_cfg },
 	{ .compatible = "qcom,hdmi-phy-8996",
 	  .data = &msm_hdmi_phy_8996_cfg },
+	{ .compatible = "qcom,hdmi-phy-8998",
+	  .data = &msm_hdmi_phy_8998_cfg },
 	{}
 };