drm/amd/display: Use VCP for extended colorimetry

DPRX should send the VCP extended colorimetry packet if the
sink supports DPCD rev1.4 and reports the extended colorimetry
bit.

Signed-off-by: Aric Cyr <aric.cyr@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c
index db06fab2ad5cd06c8c9834429c841e4281fffb5a..bc13c552797f58862a4ff09b01649d8de155ada2 100644 (file)
--- a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c
+++ b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c
@@ -63,7 +63,9 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream,
        if (stream->psr_version != 0)
                vscPacketRevision = 2;
 
-       if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420)
+       /* Update to revision 5 for extended colorimetry support for DPCD 1.4+ */
+       if (stream->link->dpcd_caps.dpcd_rev.raw >= 0x14 &&
+                       stream->link->dpcd_caps.dprx_feature.bits.VSC_SDP_COLORIMETRY_SUPPORTED)
                vscPacketRevision = 5;
 
        /* VSC packet not needed based on the features