Hi, Shuijing: On Thu, 2023-07-20 at 16:26 +0800, Shuijing Li wrote: > The audio packet arrangement function is to only arrange audio. > packets into the Hblanking area. In order to align with the HW > default setting of mt8195, this function needs to be turned off. > > Signed-off-by: Shuijing Li <shuijing.li@xxxxxxxxxxxx> > Signed-off-by: Jitao Shi <jitao.shi@xxxxxxxxxxxx> > --- > Changes in v3: > Separate these two things into two different patches. > per suggestion from the previous thread: > https://lore.kernel.org/lkml/e2ad22bcba31797f38a12a488d4246a01bf0cb2e.camel@xxxxxxxxxxxx/ > Changes in v2: > - change the variables' name to be more descriptive > - add a comment that describes the function of > mtk_dp_audio_sample_arrange > - reduce indentation by doing the inverse check > - add a definition of some bits > - add support for mediatek, mt8188-edp-tx > per suggestion from the previous thread: > https://lore.kernel.org/lkml/ac0fcec9-a2fe-06cc-c727-189ef7babe9c@xxxxxxxxxxxxx/ > --- > drivers/gpu/drm/mediatek/mtk_dp.c | 40 > +++++++++++++++++++++++++++ > drivers/gpu/drm/mediatek/mtk_dp_reg.h | 5 ++++ > 2 files changed, 45 insertions(+) > > diff --git a/drivers/gpu/drm/mediatek/mtk_dp.c > b/drivers/gpu/drm/mediatek/mtk_dp.c > index 64eee77452c0..d8cda83d6fef 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dp.c > +++ b/drivers/gpu/drm/mediatek/mtk_dp.c > @@ -139,6 +139,7 @@ struct mtk_dp_data { > unsigned int smc_cmd; > const struct mtk_dp_efuse_fmt *efuse_fmt; > bool audio_supported; > + bool audio_pkt_in_hblank_area; > }; > > static const struct mtk_dp_efuse_fmt > mt8195_edp_efuse_fmt[MTK_DP_CAL_MAX] = { > @@ -1362,6 +1363,18 @@ static void > mtk_dp_sdp_set_down_cnt_init_in_hblank(struct mtk_dp *mtk_dp) > SDP_DOWN_CNT_INIT_IN_HBLANK_DP_ENC1_P0_MASK) > ; > } > > +static void mtk_dp_audio_sample_arrange(struct mtk_dp *mtk_dp) > +{ > + /* arrange audio packets into the Hblanking and Vblanking area > */ > + if (!mtk_dp->data->audio_pkt_in_hblank_area) > + return; > + > + mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3374, 0, > + SDP_ASP_INSERT_IN_HBLANK_DP_ENC1_P0_MASK); > + mtk_dp_update_bits(mtk_dp, MTK_DP_ENC1_P0_3374, 0, > + SDP_DOWN_ASP_CNT_INIT_DP_ENC1_P0_MASK); > +} > + > static void mtk_dp_setup_tu(struct mtk_dp *mtk_dp) > { > u32 sram_read_start = min_t(u32, > MTK_DP_TBC_BUF_READ_START_ADDR, > @@ -1371,6 +1384,7 @@ static void mtk_dp_setup_tu(struct mtk_dp > *mtk_dp) > MTK_DP_PIX_PER_ADDR); > mtk_dp_set_sram_read_start(mtk_dp, sram_read_start); > mtk_dp_setup_encoder(mtk_dp); > + mtk_dp_audio_sample_arrange(mtk_dp); > mtk_dp_sdp_set_down_cnt_init_in_hblank(mtk_dp); > mtk_dp_sdp_set_down_cnt_init(mtk_dp, sram_read_start); > } > @@ -2616,11 +2630,28 @@ 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_edp_data = { > + .bridge_type = DRM_MODE_CONNECTOR_eDP, > + .smc_cmd = MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE, > + .efuse_fmt = mt8195_edp_efuse_fmt, > + .audio_supported = false, > + .audio_pkt_in_hblank_area = false, > +}; > + > +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, > +}; > + > static const struct mtk_dp_data mt8195_edp_data = { > .bridge_type = DRM_MODE_CONNECTOR_eDP, > .smc_cmd = MTK_DP_SIP_ATF_EDP_VIDEO_UNMUTE, > .efuse_fmt = mt8195_edp_efuse_fmt, > .audio_supported = false, > + .audio_pkt_in_hblank_area = false, Global variable is default zero, so this modification is not necessary. > }; > > static const struct mtk_dp_data mt8195_dp_data = { > @@ -2628,9 +2659,18 @@ static const struct mtk_dp_data mt8195_dp_data > = { > .smc_cmd = MTK_DP_SIP_ATF_VIDEO_UNMUTE, > .efuse_fmt = mt8195_dp_efuse_fmt, > .audio_supported = true, > + .audio_pkt_in_hblank_area = false, > }; > > static const struct of_device_id mtk_dp_of_match[] = { > + { > + .compatible = "mediatek,mt8188-edp-tx", > + .data = &mt8188_edp_data, mt8188_edp_data is identical to mt8195_edp_data, so drop mt8188_edp_data and use mt8188_edp_data here. Regards, CK > + }, > + { > + .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 84e38cef03c2..f38d6ff12afe 100644 > --- a/drivers/gpu/drm/mediatek/mtk_dp_reg.h > +++ b/drivers/gpu/drm/mediatek/mtk_dp_reg.h > @@ -228,6 +228,11 @@ > VIDEO_STABLE_C > NT_THRD_DP_ENC1_P0 | \ > SDP_DP13_EN_DP > _ENC1_P0 | \ > BS2BS_MODE_DP_ > ENC1_P0) > + > +#define MTK_DP_ENC1_P0_3374 0x3374 > +#define SDP_ASP_INSERT_IN_HBLANK_DP_ENC1_P0_MASK BIT(12) > +#define SDP_DOWN_ASP_CNT_INIT_DP_ENC1_P0_MASK GENMASK > (11, 0) > + > #define MTK_DP_ENC1_P0_33F4 0x33f4 > #define DP_ENC_DUMMY_RW_1_AUDIO_RST_EN BIT(0) > #define DP_ENC_DUMMY_RW_1 BIT(9)
