From ab2f8603e22ee6479d2d167c1bae90f20b23cbb5 Mon Sep 17 00:00:00 2001 From: Paloma Arellano Date: Thu, 22 Feb 2024 11:39:53 -0800 Subject: [PATCH] drm/msm/dp: check if VSC SDP is supported in DP programming 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 Reviewed-by: Dmitry Baryshkov 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 --- drivers/gpu/drm/msm/dp/dp_display.c | 5 ++++- drivers/gpu/drm/msm/dp/dp_panel.c | 1 + drivers/gpu/drm/msm/dp/dp_panel.h | 1 + 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c index 4877050bd8b56..3960c5fb7b61f 100644 --- a/drivers/gpu/drm/msm/dp/dp_display.c +++ b/drivers/gpu/drm/msm/dp/dp_display.c @@ -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 = diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c index 8242541a81b95..c6e90c99bcc8c 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.c +++ b/drivers/gpu/drm/msm/dp/dp_panel.c @@ -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; diff --git a/drivers/gpu/drm/msm/dp/dp_panel.h b/drivers/gpu/drm/msm/dp/dp_panel.h index 6ec68be9f2366..e843f5062d1f6 100644 --- a/drivers/gpu/drm/msm/dp/dp_panel.h +++ b/drivers/gpu/drm/msm/dp/dp_panel.h @@ -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; -- 2.30.2