enable OVL_LAYER_SMI_ID_EN for multi-layer usecase Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx> --- drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c index 8cf9f3b..427fe7f 100644 --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c @@ -23,6 +23,7 @@ #define DISP_REG_OVL_RST 0x0014 #define DISP_REG_OVL_ROI_SIZE 0x0020 #define DISP_REG_OVL_DATAPATH_CON 0x0024 +#define OVL_LAYER_SMI_ID_EN BIT(0) #define OVL_BGCLR_SEL_IN BIT(2) #define DISP_REG_OVL_ROI_BGCLR 0x0028 #define DISP_REG_OVL_SRC_CON 0x002c @@ -116,6 +117,8 @@ static void mtk_ovl_disable_vblank(struct mtk_ddp_comp *comp) static void mtk_ovl_start(struct mtk_ddp_comp *comp) { writel_relaxed(0x1, comp->regs + DISP_REG_OVL_EN); + mtk_ddp_write_mask(NULL, OVL_LAYER_SMI_ID_EN, comp, + DISP_REG_OVL_DATAPATH_CON, OVL_LAYER_SMI_ID_EN); } static void mtk_ovl_stop(struct mtk_ddp_comp *comp) -- 1.8.1.1.dirty