VESA vendor header from DisplayID spec may contain fixed bit per pixel rate, it should be respected by drm driver
Signed-off-by: Yaroslav Bolyukin iam@lach.pw --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 2 ++ drivers/gpu/drm/amd/display/dc/core/dc_stream.c | 3 ++- drivers/gpu/drm/amd/display/dc/dc_types.h | 3 +++ 3 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c index 29f07c26d..b34dd89ae 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c @@ -118,6 +118,8 @@ enum dc_edid_status dm_helpers_parse_edid_caps(
edid_caps->edid_hdmi = connector->display_info.is_hdmi;
+ edid_caps->dsc_fixed_bits_per_pixel_x16 = connector->display_info.dp_dsc_bpp; + sad_count = drm_edid_to_sad((struct edid *) edid->raw_edid, &sads); if (sad_count <= 0) return result; diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c index 57cf4cb82..f8516ec70 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_stream.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_stream.c @@ -105,6 +105,8 @@ static bool dc_stream_construct(struct dc_stream_state *stream,
/* EDID CAP translation for HDMI 2.0 */ stream->timing.flags.LTE_340MCSC_SCRAMBLE = dc_sink_data->edid_caps.lte_340mcsc_scramble; + stream->timing.dsc_fixed_bits_per_pixel_x16 = + dc_sink_data->edid_caps.dsc_fixed_bits_per_pixel_x16;
memset(&stream->timing.dsc_cfg, 0, sizeof(stream->timing.dsc_cfg)); stream->timing.dsc_cfg.num_slices_h = 0; @@ -738,4 +740,3 @@ void dc_stream_log(const struct dc *dc, const struct dc_stream_state *stream) "\tlink: %d\n", stream->link->link_index); } - diff --git a/drivers/gpu/drm/amd/display/dc/dc_types.h b/drivers/gpu/drm/amd/display/dc/dc_types.h index 0285a4b38..ce2e11d70 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_types.h +++ b/drivers/gpu/drm/amd/display/dc/dc_types.h @@ -227,6 +227,9 @@ struct dc_edid_caps { bool edid_hdmi; bool hdr_supported;
+ /* DisplayPort caps */ + uint32_t dsc_fixed_bits_per_pixel_x16; + struct dc_panel_patch panel_patch; };