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drm/msm/dp: check if VSC SDP is supported in DP programming

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In the DP driver, check if VSC SDP is supported and propagate this value
to dp_panel. In dp_display's dp_mode, the out_fmt_is_yuv_420 parameter
must also utilize this value since YUV420 is only allowed when VSC SDP
is supported.

Changes in v2:
	- Move DP programming when VSC SDP is supported to this patch

Signed-off-by: Paloma Arellano <quic_parellan@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/579625/
Link: https://lore.kernel.org/r/20240222194025.25329-9-quic_parellan@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Paloma Arellano 2024-02-22 11:39:53 -08:00 committed by Dmitry Baryshkov
parent 5b30d1cbd4
commit ab2f8603e2
3 changed files with 6 additions and 1 deletions
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5
drivers/gpu/drm/msm/dp/dp_display.c
View File

@ -1550,8 +1550,10 @@ void dp_bridge_mode_set(struct drm_bridge *drm_bridge,
struct msm_dp_bridge *dp_bridge = to_dp_bridge(drm_bridge);
struct msm_dp *dp = dp_bridge->dp_display;
struct dp_display_private *dp_display;
struct dp_panel *dp_panel;
dp_display = container_of(dp, struct dp_display_private, dp_display);
dp_panel = dp_display->panel;
memset(&dp_display->dp_mode, 0x0, sizeof(struct dp_display_mode));
@ -1572,7 +1574,8 @@ void dp_bridge_mode_set(struct drm_bridge *drm_bridge,
!!(dp_display->dp_mode.drm_mode.flags & DRM_MODE_FLAG_NHSYNC);
dp_display->dp_mode.out_fmt_is_yuv_420 =
drm_mode_is_420_only(&dp->connector->display_info, adjusted_mode);
drm_mode_is_420_only(&dp->connector->display_info, adjusted_mode) &&
dp_panel->vsc_sdp_supported;
/* populate wide_bus_support to different layers */
dp_display->ctrl->wide_bus_en =

1
drivers/gpu/drm/msm/dp/dp_panel.c
View File

@ -57,6 +57,7 @@ static int dp_panel_read_dpcd(struct dp_panel *dp_panel)
if (rc)
return rc;
dp_panel->vsc_sdp_supported = drm_dp_vsc_sdp_supported(panel->aux, dpcd);
link_info = &dp_panel->link_info;
link_info->revision = dpcd[DP_DPCD_REV];
major = (link_info->revision >> 4) & 0x0f;

1
drivers/gpu/drm/msm/dp/dp_panel.h
View File

@ -46,6 +46,7 @@ struct dp_panel {
struct dp_display_mode dp_mode;
struct dp_panel_psr psr_cap;
bool video_test;
bool vsc_sdp_supported;
u32 vic;
u32 max_dp_lanes;