drm/amd/display: Fix test pattern color space inconsistency for Linux

[why]
When reprogram MSA with updated color space, the test color space shows
inconsistency. Linux has separate routine to set up test pattern color
space, but it fails to configure RGB.

[How]
Add RGB to test pattern.

Fixes: 43563bc2e6a769 ("drm/amd/display: update MSA and VSC SDP on video test pattern request")
Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 f822049..7cbb1ef 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -2674,9 +2674,12 @@ static void dp_test_send_link_test_pattern(struct dc_link *link)
        break;
        }
 
-       test_pattern_color_space = dpcd_test_params.bits.YCBCR_COEFS ?
-                       DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 :
-                       DP_TEST_PATTERN_COLOR_SPACE_YCBCR601;
+       if (dpcd_test_params.bits.CLR_FORMAT == 0)
+               test_pattern_color_space = DP_TEST_PATTERN_COLOR_SPACE_RGB;
+       else
+               test_pattern_color_space = dpcd_test_params.bits.YCBCR_COEFS ?
+                               DP_TEST_PATTERN_COLOR_SPACE_YCBCR709 :
+                               DP_TEST_PATTERN_COLOR_SPACE_YCBCR601;
 
        dc_link_dp_set_test_pattern(
                        link,