[PATCH v11 5/5] drm/i915/display: Indexed 8bit format does not support async flip

[Arun R Murthy <arun.r.murthy@intel.com>]

Async flip is not supported with Indexed 8 bit format as it depends on
LUT and can't be updated atomically.

Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
---
 drivers/gpu/drm/i915/display/intel_atomic_plane.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index baa82d58900d38caf1420ce46ff6d1c003d12138..78dbbe5d1f293316dc097ce58275569eeed0b34b 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -177,7 +177,8 @@ bool intel_plane_needs_physical(struct intel_plane *plane)
 bool intel_plane_can_async_flip(struct intel_plane *plane, u32 format,
 				u64 modifier)
 {
-	if (intel_format_info_is_yuv_semiplanar(drm_format_info(format), modifier)) {
+	if (intel_format_info_is_yuv_semiplanar(drm_format_info(format), modifier) ||
+	    format == DRM_FORMAT_C8) {
 		drm_dbg_kms(plane->base.dev,
 			    "[PLANE:%d:%s] Planar formats do not support async flips\n",
 			    plane->base.base.id, plane->base.name);

-- 
2.25.1