Hi Yaroslav Bolyukin, Thanks for the patch. Reviewed-by: Wayne Lin <[email protected]>
Regards, Wayne Lin ________________________________________ From: Yaroslav Bolyukin <[email protected]> Sent: Tuesday, December 02, 2025 19:02 To: Ville Syrjälä <[email protected]>; Maarten Lankhorst <[email protected]>; Maxime Ripard <[email protected]>; Thomas Zimmermann <[email protected]>; David Airlie <[email protected]>; Simona Vetter <[email protected]>; Jani Nikula <[email protected]> Cc: Wentland, Harry <[email protected]>; Li, Sun peng (Leo) <[email protected]>; Rodrigo Siqueira <[email protected]>; Deucher, Alexander <[email protected]>; Koenig, Christian <[email protected]>; Lin, Wayne <[email protected]>; [email protected] <[email protected]>; [email protected] <[email protected]>; [email protected] <[email protected]>; Yaroslav Bolyukin <[email protected]> Subject: [PATCH v7 7/7] drm/amd: use fixed dsc bits-per-pixel from edid VESA vendor header from DisplayID spec may contain fixed bit per pixel rate, it should be used by drm driver for the modes that declare they are only supported with the declared fixed bits per pixel value. Signed-off-by: Yaroslav Bolyukin <[email protected]> --- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) 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 e6728fd12eeb..32370279283f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -6613,6 +6613,11 @@ static void fill_stream_properties_from_drm_display_mode( stream->output_color_space = get_output_color_space(timing_out, connector_state); stream->content_type = get_output_content_type(connector_state); + + /* DisplayID Type VII pass-through timings. */ + if (mode_in->dsc_passthrough_timings_support && info->dp_dsc_bpp_x16 != 0) { + stream->timing.dsc_fixed_bits_per_pixel_x16 = info->dp_dsc_bpp_x16; + } } static void fill_audio_info(struct audio_info *audio_info, @@ -7071,6 +7076,7 @@ create_stream_for_sink(struct drm_connector *connector, struct drm_display_mode mode; struct drm_display_mode saved_mode; struct drm_display_mode *freesync_mode = NULL; + struct drm_display_mode *dsc_passthru_mode = NULL; bool native_mode_found = false; bool recalculate_timing = false; bool scale = dm_state->scaling != RMX_OFF; @@ -7162,6 +7168,16 @@ create_stream_for_sink(struct drm_connector *connector, } } + list_for_each_entry(dsc_passthru_mode, &connector->modes, head) { + if (dsc_passthru_mode->hdisplay == mode.hdisplay && + dsc_passthru_mode->vdisplay == mode.vdisplay && + drm_mode_vrefresh(dsc_passthru_mode) == mode_refresh) { + mode.dsc_passthrough_timings_support = + dsc_passthru_mode->dsc_passthrough_timings_support; + break; + } + } + if (recalculate_timing) drm_mode_set_crtcinfo(&saved_mode, 0); -- 2.51.2
