diff options
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 31 |
1 files changed, 25 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 700cbd519f86..11b9c65e1ee8 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3539,12 +3539,26 @@ static void update_stream_scaling_settings(const struct drm_display_mode *mode, static enum dc_color_depth convert_color_depth_from_display_info(const struct drm_connector *connector, - const struct drm_connector_state *state) + const struct drm_connector_state *state, + bool is_y420) { - uint8_t bpc = (uint8_t)connector->display_info.bpc; + uint8_t bpc; - /* Assume 8 bpc by default if no bpc is specified. */ - bpc = bpc ? bpc : 8; + if (is_y420) { + bpc = 8; + + /* Cap display bpc based on HDMI 2.0 HF-VSDB */ + if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_48) + bpc = 16; + else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_36) + bpc = 12; + else if (connector->display_info.hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30) + bpc = 10; + } else { + bpc = (uint8_t)connector->display_info.bpc; + /* Assume 8 bpc by default if no bpc is specified. */ + bpc = bpc ? bpc : 8; + } if (!state) state = connector->state; @@ -3715,7 +3729,8 @@ static void fill_stream_properties_from_drm_display_mode( timing_out->timing_3d_format = TIMING_3D_FORMAT_NONE; timing_out->display_color_depth = convert_color_depth_from_display_info( - connector, connector_state); + connector, connector_state, + (timing_out->pixel_encoding == PIXEL_ENCODING_YCBCR420)); timing_out->scan_type = SCANNING_TYPE_NODATA; timing_out->hdmi_vic = 0; @@ -4847,6 +4862,7 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder, struct drm_dp_mst_port *mst_port; enum dc_color_depth color_depth; int clock, bpp = 0; + bool is_y420 = false; if (!aconnector->port || !aconnector->dc_sink) return 0; @@ -4858,7 +4874,10 @@ static int dm_encoder_helper_atomic_check(struct drm_encoder *encoder, return 0; if (!state->duplicated) { - color_depth = convert_color_depth_from_display_info(connector, conn_state); + is_y420 = drm_mode_is_420_also(&connector->display_info, adjusted_mode) && + aconnector->force_yuv420_output; + color_depth = convert_color_depth_from_display_info(connector, conn_state, + is_y420); bpp = convert_dc_color_depth_into_bpc(color_depth) * 3; clock = adjusted_mode->clock; dm_new_connector_state->pbn = drm_dp_calc_pbn_mode(clock, bpp); |