The source image might be only vertically scaled, and in this case
->is_unity will be false, but we'd still have to force ->x_scaling[0]
to VC4_SCALING_PPF for YUV conversion to work properly.
Let's replace the ->is_unity test by->x_scaling[0] == VC4_SCALING_NONE
to cope with that.
Fixes: 658d8cbd07da ("drm/vc4: Fix the "no scaling" case on multi-planar YUV formats")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>
---
drivers/gpu/drm/vc4/vc4_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index 60d5ad19cedd..32b7b9f47c5d 100644
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -318,7 +318,7 @@ static int vc4_plane_setup_clipping_and_scaling(struct drm_plane_state *state)
* even on a plane that's otherwise 1:1. Looks like only PPF
* works in that case, so let's pick that one.
*/
- if (vc4_state->is_unity)
+ if (vc4_state->x_scaling[0] == VC4_SCALING_NONE)
vc4_state->x_scaling[0] = VC4_SCALING_PPF;
} else {
vc4_state->is_yuv = false;
--
2.17.1
