[PATCH v2 05/22] drm/amd/display: Fix color encoding mismatch

[Maxime Ripard <maxime@cerno.tech>]

The amdgpu KMS driver calls drm_plane_create_color_properties() with a
default encoding set to BT709.

However, the core will ignore it and the driver doesn't force it in its
plane state reset hook, so the initial value will be 0, which represents
BT601.

Fix the mismatch by using an initial value of BT601 in
drm_plane_create_color_properties().

Cc: amd-gfx@lists.freedesktop.org
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: Harry Wentland <harry.wentland@amd.com>
Cc: Leo Li <sunpeng.li@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

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 feccf2b555d2..86b27a355e90 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7914,7 +7914,7 @@ static int amdgpu_dm_plane_init(struct amdgpu_display_manager *dm,
 			BIT(DRM_COLOR_YCBCR_BT2020),
 			BIT(DRM_COLOR_YCBCR_LIMITED_RANGE) |
 			BIT(DRM_COLOR_YCBCR_FULL_RANGE),
-			DRM_COLOR_YCBCR_BT709, DRM_COLOR_YCBCR_LIMITED_RANGE);
+			DRM_COLOR_YCBCR_BT601, DRM_COLOR_YCBCR_LIMITED_RANGE);
 	}
 
 	supported_rotations =
-- 
2.35.1