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drm: mali-dp: Add pitch alignment check for planes

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Check that the framebuffer pitches are appropriately aligned when
checking planes.

Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
This commit is contained in:
Brian Starkey 2016-10-11 15:26:05 +01:00 committed by Liviu Dudau
parent a228062cb4
commit a46a096a40
1 changed files with 14 additions and 1 deletions
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15
drivers/gpu/drm/arm/malidp_planes.c
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@ -86,17 +86,30 @@ static int malidp_de_plane_check(struct drm_plane *plane,
{
struct malidp_plane *mp = to_malidp_plane(plane);
struct malidp_plane_state *ms = to_malidp_plane_state(state);
struct drm_framebuffer *fb;
int n_planes, i;
u8 format_id;
u32 src_w, src_h;
if (!state->crtc || !state->fb)
return 0;
fb = state->fb;
format_id = malidp_hw_get_format_id(&mp->hwdev->map, mp->layer->id,
state->fb->pixel_format);
fb->pixel_format);
if (format_id == MALIDP_INVALID_FORMAT_ID)
return -EINVAL;
n_planes = drm_format_num_planes(fb->pixel_format);
for (i = 0; i < n_planes; i++) {
if (!malidp_hw_pitch_valid(mp->hwdev, fb->pitches[i])) {
DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n",
fb->pitches[i], i);
return -EINVAL;
}
}
src_w = state->src_w >> 16;
src_h = state->src_h >> 16;