From: Andri Yngvason <[email protected]>

This includes YUV420 as well YUV444 and Auto. Auto will fallback to RGB
to keep things sane and still working, similar to i915.

Signed-off-by: Werner Sembach <[email protected]>
Signed-off-by: Andri Yngvason <[email protected]>
Signed-off-by: Marius Vlad <[email protected]>
Co-Developed-by: Andri Yngvason <[email protected]>
Co-Developed-by: Marius Vlad <[email protected]>
---
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 74 +++++++++++++++++--
 .../display/amdgpu_dm/amdgpu_dm_mst_types.c   | 13 ++++
 2 files changed, 81 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index cc19c4bfd623..beb127471a61 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6426,15 +6426,32 @@ static void 
fill_stream_properties_from_drm_display_mode(
        timing_out->h_border_right = 0;
        timing_out->v_border_top = 0;
        timing_out->v_border_bottom = 0;
-       /* TODO: un-hardcode */
-       if (drm_mode_is_420_only(info, mode_in) || (drm_mode_is_420_also(info, 
mode_in) &&
-           aconnector && aconnector->force_yuv420_output))
+
+       if (drm_mode_is_420_also(info, mode_in) && aconnector &&
+           (connector_state->color_format == DRM_COLOR_FORMAT_YCBCR420 &&
+            aconnector->force_yuv420_output)) {
                timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
-       else if ((connector->display_info.color_formats & 
DRM_COLOR_FORMAT_YCBCR444)
-                       && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
+       } else if ((connector_state && connector_state->color_format == 
DRM_COLOR_FORMAT_YCBCR444 &&
+                 connector->display_info.color_formats & 
DRM_COLOR_FORMAT_YCBCR444)
+                       && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A) {
                timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;
-       else
+       } else if (connector_state && connector_state->color_format == 
DRM_COLOR_FORMAT_RGB444 &&
+                !drm_mode_is_420_only(info, mode_in)) {
                timing_out->pixel_encoding = PIXEL_ENCODING_RGB;
+       } else {
+               /*
+                * connector_state->force_color_format not possible
+                * || connector_state->force_color_format == 0 (auto)
+                * || connector_state->force_color_format == 
DRM_COLOR_FORMAT_YCBCR422
+                */
+               if (drm_mode_is_420_only(info, mode_in))
+                       timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR420;
+               else if ((connector->display_info.color_formats & 
DRM_COLOR_FORMAT_YCBCR444)
+                        && stream->signal == SIGNAL_TYPE_HDMI_TYPE_A)
+                       timing_out->pixel_encoding = PIXEL_ENCODING_YCBCR444;
+               else
+                       timing_out->pixel_encoding = PIXEL_ENCODING_RGB;
+       }
 
        timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE;
        timing_out->display_color_depth = convert_color_depth_from_display_info(
@@ -7664,6 +7681,37 @@ static enum dc_status 
dm_validate_stream_and_context(struct dc *dc,
        return dc_result;
 }
 
+static enum dc_status
+dm_validate_stream_color_format(const struct drm_connector_state *drm_state,
+                               const struct dc_stream_state *stream)
+{
+       if (!drm_state->color_format ||
+           drm_state->color_format == DRM_COLOR_FORMAT_NONE)
+               return DC_OK;
+
+       enum dc_pixel_encoding encoding = PIXEL_ENCODING_UNDEFINED;
+       switch (drm_state->color_format) {
+       case DRM_COLOR_FORMAT_AUTO:
+       case DRM_COLOR_FORMAT_RGB444:
+               encoding = PIXEL_ENCODING_RGB;
+               break;
+       case DRM_COLOR_FORMAT_YCBCR444:
+               encoding = PIXEL_ENCODING_YCBCR444;
+               break;
+       case DRM_COLOR_FORMAT_YCBCR422:
+               encoding = PIXEL_ENCODING_YCBCR422;
+               break;
+       case DRM_COLOR_FORMAT_YCBCR420:
+               encoding = PIXEL_ENCODING_YCBCR420;
+               break;
+       default:
+               break;
+       }
+
+       return encoding == stream->timing.pixel_encoding ?
+               DC_OK : DC_UNSUPPORTED_VALUE;
+}
+
 struct dc_stream_state *
 create_validate_stream_for_sink(struct drm_connector *connector,
                                const struct drm_display_mode *drm_mode,
@@ -7709,6 +7757,9 @@ create_validate_stream_for_sink(struct drm_connector 
*connector,
                if (dc_result == DC_OK)
                        dc_result = dm_validate_stream_and_context(adev->dm.dc, 
stream);
 
+               if (dc_result == DC_OK)
+                       dc_result = dm_validate_stream_color_format(drm_state, 
stream);
+
                if (dc_result != DC_OK) {
                        DRM_DEBUG_KMS("Pruned mode %d x %d (clk %d) %s %s -- 
%s\n",
                                      drm_mode->hdisplay,
@@ -8477,6 +8528,13 @@ static const u32 supported_colorspaces =
        BIT(DRM_MODE_COLORIMETRY_BT2020_RGB) |
        BIT(DRM_MODE_COLORIMETRY_BT2020_YCC);
 
+static const u32 supported_colorformats =
+       DRM_COLOR_FORMAT_AUTO |
+       DRM_COLOR_FORMAT_RGB444 |
+       DRM_COLOR_FORMAT_YCBCR444 |
+       DRM_COLOR_FORMAT_YCBCR422 |
+       DRM_COLOR_FORMAT_YCBCR420;
+
 void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
                                     struct amdgpu_dm_connector *aconnector,
                                     int connector_type,
@@ -8564,10 +8622,14 @@ void amdgpu_dm_connector_init_helper(struct 
amdgpu_display_manager *dm,
        if (connector_type == DRM_MODE_CONNECTOR_HDMIA) {
                if 
(!drm_mode_create_hdmi_colorspace_property(&aconnector->base, 
supported_colorspaces))
                        
drm_connector_attach_colorspace_property(&aconnector->base);
+               if 
(!drm_mode_create_hdmi_color_format_property(&aconnector->base, 
supported_colorformats))
+                       
drm_connector_attach_color_format_property(&aconnector->base);
        } else if ((connector_type == DRM_MODE_CONNECTOR_DisplayPort && 
!aconnector->mst_root) ||
                   connector_type == DRM_MODE_CONNECTOR_eDP) {
                if (!drm_mode_create_dp_colorspace_property(&aconnector->base, 
supported_colorspaces))
                        
drm_connector_attach_colorspace_property(&aconnector->base);
+               if 
(!drm_mode_create_dp_color_format_property(&aconnector->base, 
supported_colorformats))
+                       
drm_connector_attach_color_format_property(&aconnector->base);
        }
 
        if (connector_type == DRM_MODE_CONNECTOR_HDMIA ||
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 6a817508c826..01f8f26fde0a 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -52,6 +52,13 @@
 
 #define PEAK_FACTOR_X1000 1006
 
+static const u32 supported_colorformats =
+       DRM_COLOR_FORMAT_AUTO |
+       DRM_COLOR_FORMAT_RGB444 |
+       DRM_COLOR_FORMAT_YCBCR444 |
+       DRM_COLOR_FORMAT_YCBCR422 |
+       DRM_COLOR_FORMAT_YCBCR420;
+
 /*
  * This function handles both native AUX and I2C-Over-AUX transactions.
  */
@@ -679,6 +686,12 @@ dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr 
*mgr,
        if (connector->max_bpc_property)
                drm_connector_attach_max_bpc_property(connector, 8, 16);
 
+       connector->color_format_property = master->base.color_format_property;
+       if (connector->color_format_property) {
+               if 
(!drm_mode_create_dp_color_format_property(&aconnector->base, 
supported_colorformats))
+                       
drm_connector_attach_color_format_property(&aconnector->base);
+       }
+
        connector->vrr_capable_property = master->base.vrr_capable_property;
        if (connector->vrr_capable_property)
                drm_connector_attach_vrr_capable_property(connector);
-- 
2.47.2

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