drm/mali-dp: Don't enable scaling engine for planes that only rotate.
Currently the scaling engine gets enabled for a plane where the input
size differs from the composition size. As rotation is done natively
by the plane's hardware layer, we don't need the scaling engine to be
enabled.
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index 6f813c4..7bc164a 100644
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -154,8 +154,14 @@ static int malidp_se_check_scaling(struct malidp_plane *mp,
if (ret)
return ret;
- src_w = state->src_w >> 16;
- src_h = state->src_h >> 16;
+ if (state->rotation & MALIDP_ROTATED_MASK) {
+ src_w = state->src_h >> 16;
+ src_h = state->src_w >> 16;
+ } else {
+ src_w = state->src_w >> 16;
+ src_h = state->src_h >> 16;
+ }
+
if ((state->crtc_w == src_w) && (state->crtc_h == src_h)) {
/* Scaling not necessary for this plane. */
mc->scaled_planes_mask &= ~(mp->layer->id);