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Subject[PATCH v4 09/14] drm/mediatek: add function to get layer number for component
Date
This patch add function to get layer number for component

Signed-off-by: Stu Hsieh <stu.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
index 7413ffeb3c9d..8399229e6ad2 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h
@@ -78,6 +78,7 @@ struct mtk_ddp_comp_funcs {
void (*stop)(struct mtk_ddp_comp *comp);
void (*enable_vblank)(struct mtk_ddp_comp *comp, struct drm_crtc *crtc);
void (*disable_vblank)(struct mtk_ddp_comp *comp);
+ unsigned int (*layer_nr)(struct mtk_ddp_comp *comp);
void (*layer_on)(struct mtk_ddp_comp *comp, unsigned int idx);
void (*layer_off)(struct mtk_ddp_comp *comp, unsigned int idx);
void (*layer_config)(struct mtk_ddp_comp *comp, unsigned int idx,
@@ -128,6 +129,14 @@ static inline void mtk_ddp_comp_disable_vblank(struct mtk_ddp_comp *comp)
comp->funcs->disable_vblank(comp);
}

+static inline unsigned int mtk_ddp_comp_layer_nr(struct mtk_ddp_comp *comp)
+{
+ if (comp->funcs && comp->funcs->layer_nr)
+ return comp->funcs->layer_nr(comp);
+
+ return 0;
+}
+
static inline void mtk_ddp_comp_layer_on(struct mtk_ddp_comp *comp,
unsigned int idx)
{
--
2.12.5.2.gbdf23ab
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