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drm/mali-dp: Don't enable scaling engine for planes that only rotate.

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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>
This commit is contained in:
Liviu Dudau 2017-12-15 16:42:19 +00:00
parent f2f2c85c66
commit e0521c05c1
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/arm/malidp_planes.c
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@ -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);