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Subject[PATCH v5 07/17] drm/amd/display: Add handling for new "active color format" property
Date
This commit implements the "active color format" drm property for the AMD
GPU driver.

Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 29 +++++++++++++++++--
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 4 +++
2 files changed, 31 insertions(+), 2 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 d984de82ae63..098f3d53e681 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6710,6 +6710,24 @@ static int convert_dc_color_depth_into_bpc (enum dc_color_depth display_color_de
return 0;
}

+static int convert_dc_pixel_encoding_into_drm_color_format(
+ enum dc_pixel_encoding display_pixel_encoding)
+{
+ switch (display_pixel_encoding) {
+ case PIXEL_ENCODING_RGB:
+ return DRM_COLOR_FORMAT_RGB444;
+ case PIXEL_ENCODING_YCBCR422:
+ return DRM_COLOR_FORMAT_YCRCB422;
+ case PIXEL_ENCODING_YCBCR444:
+ return DRM_COLOR_FORMAT_YCRCB444;
+ case PIXEL_ENCODING_YCBCR420:
+ return DRM_COLOR_FORMAT_YCRCB420;
+ default:
+ break;
+ }
+ return 0;
+}
+
static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder,
struct drm_crtc_state *crtc_state,
struct drm_connector_state *conn_state)
@@ -7711,6 +7729,7 @@ void amdgpu_dm_connector_init_helper(struct amdgpu_display_manager *dm,
if (!aconnector->mst_port) {
drm_connector_attach_max_bpc_property(&aconnector->base, 8, 16);
drm_connector_attach_active_bpc_property(&aconnector->base, 8, 16);
+ drm_connector_attach_active_color_format_property(&aconnector->base);
}

/* This defaults to the max in the range, but we want 8bpc for non-edp. */
@@ -9090,14 +9109,20 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
stream = dm_new_crtc_state->stream;

- if (stream)
+ if (stream) {
drm_connector_set_active_bpc_property(connector,
stream->timing.flags.DSC ?
stream->timing.dsc_cfg.bits_per_pixel / 16 / 3 :
convert_dc_color_depth_into_bpc(
stream->timing.display_color_depth));
- } else
+ drm_connector_set_active_color_format_property(connector,
+ convert_dc_pixel_encoding_into_drm_color_format(
+ dm_new_crtc_state->stream->timing.pixel_encoding));
+ }
+ } else {
drm_connector_set_active_bpc_property(connector, 0);
+ drm_connector_set_active_color_format_property(connector, 0);
+ }
}

/* Count number of newly disabled CRTCs for dropping PM refs later. */
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 0cf38743ec47..13151d13aa73 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
@@ -413,6 +413,10 @@ dm_dp_add_mst_connector(struct drm_dp_mst_topology_mgr *mgr,
if (connector->active_bpc_property)
drm_connector_attach_active_bpc_property(&aconnector->base, 8, 16);

+ connector->active_color_format_property = master->base.active_color_format_property;
+ if (connector->active_color_format_property)
+ drm_connector_attach_active_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);
--
2.25.1
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