From: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
This patch add connect function for ovl
Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
---
drivers/gpu/drm/mediatek/mtk_disp_ovl.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
index a0ab760..3b2ce77 100644
--- a/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
+++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl.c
@@ -27,6 +27,8 @@
#define DISP_REG_OVL_EN 0x000c
#define DISP_REG_OVL_RST 0x0014
#define DISP_REG_OVL_ROI_SIZE 0x0020
+#define DISP_REG_OVL_DATAPATH_CON 0x0024
+#define OVL_BGCLR_SEL_IN BIT(2)
#define DISP_REG_OVL_ROI_BGCLR 0x0028
#define DISP_REG_OVL_SRC_CON 0x002c
#define DISP_REG_OVL_CON(n) (0x0030 + 0x20 * (n))
@@ -245,6 +247,19 @@ static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
mtk_ovl_layer_on(comp, idx);
}
+static void mtk_ovl_connect(struct mtk_ddp_comp *comp,
+ enum mtk_ddp_comp_id prev)
+{
+ int is_ovl = 0;
+
+ if (prev == DDP_COMPONENT_OVL0 || prev == DDP_COMPONENT_OVL1 ||
+ prev == DDP_COMPONENT_OVL0_2L || prev == DDP_COMPONENT_OVL1_2L)
+ is_ovl = 1;
+
+ mtk_ddp_write_mask((is_ovl << 2), comp,
+ DISP_REG_OVL_DATAPATH_CON, OVL_BGCLR_SEL_IN);
+}
+
static const struct mtk_ddp_comp_funcs mtk_disp_ovl_funcs = {
.config = mtk_ovl_config,
.start = mtk_ovl_start,
@@ -255,6 +270,7 @@ static void mtk_ovl_layer_config(struct mtk_ddp_comp *comp, unsigned int idx,
.layer_on = mtk_ovl_layer_on,
.layer_off = mtk_ovl_layer_off,
.layer_config = mtk_ovl_layer_config,
+ .connect = mtk_ovl_connect,
};
static int mtk_disp_ovl_bind(struct device *dev, struct device *master,
--
1.8.1.1.dirty
