Commit caedbf17 authored by Arnaud Vrac's avatar Arnaud Vrac Committed by Dmitry Baryshkov
Browse files

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: default avatarArnaud Vrac <avrac@freebox.fr>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarMarc Gonzalez <mgonzalez@freebox.fr>
Patchwork: https://patchwork.freedesktop.org/patch/605631/
Link: https://lore.kernel.org/r/20240724-hdmi-tx-v7-4-e44a20553464@freebox.fr


[DB: replaced division with do_div64 to fix build issues on ARM32]
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
parent a61eb17f

drivers/gpu/drm/msm/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -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

+8 −0
Original line number Diff line number Diff line
@@ -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

+5 −0
Original line number Diff line number Diff line
@@ -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 },

	{}

};

drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c

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drivers/gpu/drm/msm/registers/display/hdmi.xml

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