Re: [PATCH v6,4/4] drm/mediatek: dp: Add support MT8188 dp/edp function

[CK Hu (胡俊光)]

Hi, Shuijing:

On Tue, 2023-08-22 at 10:41 +0800, Shuijing Li wrote:
> Add support MT8188 dp/edp function

Reviewed-by: CK Hu <ck.hu@xxxxxxxxxxxx>

> 
> Signed-off-by: Shuijing Li <shuijing.li@xxxxxxxxxxxx>
> ---
> Changes in v6:
> Move audio function to patch [2/4].
> per suggestion from the previous thread:
> 
https://lore.kernel.org/all/1d41747060c613ca0ae8e3b6395cc33bfa4d9056.camel@xxxxxxxxxxxx/
> Changes in v5:
> Separate mt8188 related code into mtk_dp_data structure and mt8188
> dp/edp function
> per suggestion from the previous thread:
> 
https://lore.kernel.org/lkml/c1c84616f3da83a8a2bc245b0d3c7697153cd81a.camel@xxxxxxxxxxxx/
> ---
>  drivers/gpu/drm/mediatek/mtk_dp.c     | 17 +++++++++++++++++
>  drivers/gpu/drm/mediatek/mtk_dp_reg.h |  6 ++++++
>  2 files changed, 23 insertions(+)
> 
> diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c
> b/drivers/gpu/drm/mediatek/mtk_dp.c
> index 0ba9a4fdf839..67986dd7c9d7 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dp.c
> @@ -2631,6 +2631,15 @@ static int mtk_dp_resume(struct device *dev)
>  
>  static SIMPLE_DEV_PM_OPS(mtk_dp_pm_ops, mtk_dp_suspend,
> mtk_dp_resume);
>  
> +static const struct mtk_dp_data mt8188_dp_data = {
> +	.bridge_type = DRM_MODE_CONNECTOR_DisplayPort,
> +	.smc_cmd = MTK_DP_SIP_ATF_VIDEO_UNMUTE,
> +	.efuse_fmt = mt8195_dp_efuse_fmt,
> +	.audio_supported = true,
> +	.audio_pkt_in_hblank_area = true,
> +	.audio_m_div2_bit =
> MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_2,
> +};
> +
>  static const struct mtk_dp_data mt8195_edp_data = {
>  	.bridge_type = DRM_MODE_CONNECTOR_eDP,
>  	.smc_cmd = MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE,
> @@ -2648,6 +2657,14 @@ static const struct mtk_dp_data mt8195_dp_data
> = {
>  };
>  
>  static const struct of_device_id mtk_dp_of_match[] = {
> +	{
> +		.compatible = "mediatek,mt8188-edp-tx",
> +		.data = &mt8195_edp_data,
> +	},
> +	{
> +		.compatible = "mediatek,mt8188-dp-tx",
> +		.data = &mt8188_dp_data,
> +	},
>  	{
>  		.compatible = "mediatek,mt8195-edp-tx",
>  		.data = &mt8195_edp_data,
> diff --git a/drivers/gpu/drm/mediatek/mtk_dp_reg.h
> b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
> index b9859ef067ce..709b79480693 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dp_reg.h
> +++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h
> @@ -165,6 +165,12 @@
>  #define MT8195_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_2	(5 <<
> 8)
>  #define MT8195_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_4	(6 <<
> 8)
>  #define MT8195_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_8	(7 <<
> 8)
> +#define MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_2	(1 <<
> 8)
> +#define MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_4	(2 <<
> 8)
> +#define MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_MUL_8	(3 <<
> 8)
> +#define MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_2	(4 <<
> 8)
> +#define MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_4	(5 <<
> 8)
> +#define MT8188_AUDIO_M_CODE_MULT_DIV_SEL_DP_ENC0_P0_DIV_8	(7 <<
> 8)
>  #define MTK_DP_ENC0_P0_30D8			0x30d8
>  #define MTK_DP_ENC0_P0_312C			0x312c
>  #define ASP_HB2_DP_ENC0_P0_MASK				GENMASK
> (7, 0)