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authorDerek Lai <Derek.Lai@amd.com>2020-06-04 16:29:39 +0800
committerAlex Deucher <alexander.deucher@amd.com>2020-07-01 01:59:26 -0400
commit7715fdf3362fa88f3e3620261a6e546f50713a5e (patch)
tree0eee53b552a7f185e6cd97e9bffc1cad0f4524d6 /drivers/gpu/drm/amd/display
parentdc43d9583f62e31a2bec1e414ec0cdfaa6a0debb (diff)
drm/amd/display: VSC SDP supported for SST
[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 <Derek.Lai@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Acked-by: Tony Cheng <Tony.Cheng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c4
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c2
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 a19a3ed3ca16..58bcf9afca6f 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -4573,10 +4573,8 @@ 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 baad087c4f71..4054df1cd1a5 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,