From: Derek Lai <[email protected]> [why] If a typeC to HDMI dongle supports YCbCr420 pass through and VSC colorimetry and pixel encoding formats in the Extended Receiver Capability, we shall allow VSC SDP to be used.
[How] The Extended Receiver Capability field shall check the EXTENDED_RECEIVER_CAPABILITY_FIELD_PRESENT bit in the TRAINING_AUX_RD_INTERVAL register. Removed DPCD rev checking for VSC SDP. Signed-off-by: Derek Lai <[email protected]> Reviewed-by: Wenjing Liu <[email protected]> Acked-by: Rodrigo Siqueira <[email protected]> Acked-by: Tony Cheng <[email protected]> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 +--- drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 +- 2 files changed, 2 insertions(+), 4 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 2dc419194817..e35fd2225972 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4646,10 +4646,8 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, stream->use_vsc_sdp_for_colorimetry = aconnector->dc_sink->is_vsc_sdp_colorimetry_supported; } else { - if (stream->link->dpcd_caps.dpcd_rev.raw >= 0x14 && - stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED) { + if (stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED) stream->use_vsc_sdp_for_colorimetry = true; - } } mod_build_vsc_infopacket(stream, &stream->vsc_infopacket); } diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 3da5d76ee8b6..d9b53654c35a 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -3376,7 +3376,7 @@ static bool retrieve_link_cap(struct dc_link *link) link->dpcd_caps.dpcd_rev.raw = dpcd_data[DP_DPCD_REV - DP_DPCD_REV]; - if (link->dpcd_caps.dpcd_rev.raw >= 0x14) { + if (link->dpcd_caps.ext_receiver_cap_field_present) { for (i = 0; i < read_dpcd_retry_cnt; i++) { status = core_link_read_dpcd( link, -- 2.27.0 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
