drm/amd/display: Update SDP VSC colorimetry from DP test automation request

[Why]
Certain test equipment vendors check the SDP VSC for colorimetry against
the value from the test request during certain DP link layer tests for
YCbCr test cases.

[How]
Update SDP VSC with colorimetry from test automation request.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c b/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
index 0894e6aef3dd74d99f94eb380e069fc5eb376c06..21a39afd274bb64560a3b8ac2dd4c2cdc9a6ad95 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
+++ b/drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c
@@ -839,6 +839,12 @@ bool dp_set_test_pattern(
                                pipe_ctx->stream->vsc_infopacket.sb[17] |= (1 << 7); // sb17 bit 7 Dynamic Range: 0 = VESA range, 1 = CTA range
                        else
                                pipe_ctx->stream->vsc_infopacket.sb[17] &= ~(1 << 7);
+
+                       if (color_space == COLOR_SPACE_YCBCR601_LIMITED)
+                               pipe_ctx->stream->vsc_infopacket.sb[16] &= 0xf0;
+                       else if (color_space == COLOR_SPACE_YCBCR709_LIMITED)
+                               pipe_ctx->stream->vsc_infopacket.sb[16] |= 1;
+
                        resource_build_info_frame(pipe_ctx);
                        link->dc->hwss.update_info_frame(pipe_ctx);
                }