[Intel-gfx] [v3 2/3] drm/i915/icl: Fix Y pre-offset for Full Range YCbCr

[Uma Shankar]

Fixed Y Pre-offset in case of Full Range YCbCr.

Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: Uma Shankar <uma.shankar at intel.com>
---
 drivers/gpu/drm/i915/intel_sprite.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 4f513600..c9c970f 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -505,8 +505,11 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state)
 
 	I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 0),
 		      PREOFF_YUV_TO_RGB_HI);
-	I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 1),
-		      PREOFF_YUV_TO_RGB_ME);
+	if (plane_state->base.color_range == DRM_COLOR_YCBCR_FULL_RANGE)
+		I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 1), 0);
+	else
+		I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 1),
+			      PREOFF_YUV_TO_RGB_ME);
 	I915_WRITE_FW(PLANE_INPUT_CSC_PREOFF(pipe, plane_id, 2),
 		      PREOFF_YUV_TO_RGB_LO);
 	I915_WRITE_FW(PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 0), 0x0);
-- 
1.9.1