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path: root/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
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Diffstat (limited to 'drivers/gpu/drm/mediatek/mtk_drm_crtc.c')
-rw-r--r--drivers/gpu/drm/mediatek/mtk_drm_crtc.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index f80a8ba75977..3305a94fc930 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -215,11 +215,12 @@ struct mtk_ddp_comp *mtk_drm_ddp_comp_for_plane(struct drm_crtc *crtc,
struct mtk_drm_crtc *mtk_crtc = to_mtk_crtc(crtc);
struct mtk_ddp_comp *comp;
int i, count = 0;
+ unsigned int local_index = plane - mtk_crtc->planes;
for (i = 0; i < mtk_crtc->ddp_comp_nr; i++) {
comp = mtk_crtc->ddp_comp[i];
- if (plane->index < (count + mtk_ddp_comp_layer_nr(comp))) {
- *local_layer = plane->index - count;
+ if (local_index < (count + mtk_ddp_comp_layer_nr(comp))) {
+ *local_layer = local_index - count;
return comp;
}
count += mtk_ddp_comp_layer_nr(comp);
@@ -310,7 +311,9 @@ static int mtk_crtc_ddp_hw_init(struct mtk_drm_crtc *mtk_crtc)
plane_state = to_mtk_plane_state(plane->state);
comp = mtk_drm_ddp_comp_for_plane(crtc, plane, &local_layer);
- mtk_ddp_comp_layer_config(comp, local_layer, plane_state);
+ if (comp)
+ mtk_ddp_comp_layer_config(comp, local_layer,
+ plane_state);
}
return 0;
@@ -386,8 +389,9 @@ static void mtk_crtc_ddp_config(struct drm_crtc *crtc)
comp = mtk_drm_ddp_comp_for_plane(crtc, plane,
&local_layer);
- mtk_ddp_comp_layer_config(comp, local_layer,
- plane_state);
+ if (comp)
+ mtk_ddp_comp_layer_config(comp, local_layer,
+ plane_state);
plane_state->pending.config = false;
}
mtk_crtc->pending_planes = false;
@@ -401,7 +405,9 @@ int mtk_drm_crtc_plane_check(struct drm_crtc *crtc, struct drm_plane *plane,
struct mtk_ddp_comp *comp;
comp = mtk_drm_ddp_comp_for_plane(crtc, plane, &local_layer);
- return mtk_ddp_comp_layer_check(comp, local_layer, state);
+ if (comp)
+ return mtk_ddp_comp_layer_check(comp, local_layer, state);
+ return 0;
}
static void mtk_drm_crtc_atomic_enable(struct drm_crtc *crtc,