From: Stu Hsieh Date: Thu, 9 Aug 2018 10:15:44 +0800 Subject: drm/mediatek: add function to get layer number for component Git-commit: 650afd49572b56a5c58134d4acfeb77acc69d622 Patch-mainline: v4.19-rc2 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 This patch add function to get layer number for component Signed-off-by: Stu Hsieh Signed-off-by: CK Hu Acked-by: Petr Tesarik --- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.h | 9 +++++++++ 1 file changed, 9 insertions(+) --- 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_ 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) {