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 | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index 8cf9f3b..97f8380 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
@@ -61,6 +62,7 @@ struct mtk_disp_ovl_data {
unsigned int gmc_bits;
unsigned int layer_nr;
bool fmt_rgb565_is_0;
+ bool smi_id_en;
};
/**
@@ -115,7 +117,17 @@ static void mtk_ovl_disable_vblank(struct mtk_ddp_comp *comp)
static void mtk_ovl_start(struct mtk_ddp_comp *comp)
{
+ struct mtk_disp_ovl *ovl = comp_to_ovl(comp);
+
writel_relaxed(0x1, comp->regs + DISP_REG_OVL_EN);
+
+ if(ovl->data->smi_id_en) {
+ unsigned int reg;
+
+ reg = readl(comp->regs + DISP_REG_OVL_DATAPATH_CON);
+ reg = reg | OVL_LAYER_SMI_ID_EN;
+ writel_relaxed(reg, comp->regs + DISP_REG_OVL_DATAPATH_CON);
+ }
}
static void mtk_ovl_stop(struct mtk_ddp_comp *comp)
--
1.8.1.1.dirty
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