[PATCH v1 05/21] mtk-mmsys: add ovl mout on support

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add ovl mout on support

Signed-off-by: Yongqiang Niu <yongqiang.niu@xxxxxxxxxxxx>
---
 drivers/soc/mediatek/mmsys/mt8192-mmsys.c | 23 +++++++++++++++++++++++
 drivers/soc/mediatek/mtk-mmsys.c          |  8 ++++++++
 include/linux/soc/mediatek/mtk-mmsys.h    |  3 +++
 3 files changed, 34 insertions(+)

diff --git a/drivers/soc/mediatek/mmsys/mt8192-mmsys.c b/drivers/soc/mediatek/mmsys/mt8192-mmsys.c
index 006d41d..06080ad 100644
--- a/drivers/soc/mediatek/mmsys/mt8192-mmsys.c
+++ b/drivers/soc/mediatek/mmsys/mt8192-mmsys.c
@@ -134,10 +134,33 @@ static void mtk_mmsys_ddp_sout_sel(void __iomem *config_regs,
 	}
 }
 
+static int mtk_mmsys_ovl_mout_en(enum mtk_ddp_comp_id cur,
+				 enum mtk_ddp_comp_id next,
+				 unsigned int *addr)
+{
+	int value = -1;
+
+	*addr = MT8192_MMSYS_OVL_MOUT_EN;
+
+	if (cur == DDP_COMPONENT_OVL0 && next == DDP_COMPONENT_OVL_2L0)
+		value = DISP_OVL0_GO_BG;
+	else if (cur == DDP_COMPONENT_OVL_2L0 && next == DDP_COMPONENT_OVL0)
+		value = DISP_OVL0_2L_GO_BG;
+	else if (cur == DDP_COMPONENT_OVL0)
+		value = DISP_OVL0_GO_BLEND;
+	else if (cur == DDP_COMPONENT_OVL_2L0)
+		value = DISP_OVL0_2L_GO_BLEND;
+	else
+		value = -1;
+
+	return value;
+}
+
 static struct mtk_mmsys_conn_funcs mmsys_funcs = {
 	.mout_en = mtk_mmsys_ddp_mout_en,
 	.sel_in = mtk_mmsys_ddp_sel_in,
 	.sout_sel = mtk_mmsys_ddp_sout_sel,
+	.ovl_mout_en = mtk_mmsys_ovl_mout_en,
 };
 
 static int mmsys_probe(struct platform_device *pdev)
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 828d59e..1362d01 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c
@@ -76,6 +76,14 @@ void mtk_mmsys_ddp_connect(struct device *dev,
 		reg = readl_relaxed(config_regs + addr) | value;
 		writel_relaxed(reg, config_regs + addr);
 	}
+
+	if (priv_funcs->ovl_mout_en) {
+		value = priv_funcs->ovl_mout_en(cur, next, &addr);
+		if (value >= 0) {
+			reg = readl_relaxed(config_regs + addr) | value;
+			writel_relaxed(reg, config_regs + addr);
+		}
+	}
 }
 EXPORT_SYMBOL_GPL(mtk_mmsys_ddp_connect);
 
diff --git a/include/linux/soc/mediatek/mtk-mmsys.h b/include/linux/soc/mediatek/mtk-mmsys.h
index 8ef3eaa..eefc7b1 100644
--- a/include/linux/soc/mediatek/mtk-mmsys.h
+++ b/include/linux/soc/mediatek/mtk-mmsys.h
@@ -55,6 +55,9 @@ struct mtk_mmsys_conn_funcs {
 	void (*sout_sel)(void __iomem *config_regs,
 			 enum mtk_ddp_comp_id cur,
 			 enum mtk_ddp_comp_id next);
+	int (*ovl_mout_en)(enum mtk_ddp_comp_id cur,
+			   enum mtk_ddp_comp_id next,
+			   unsigned int *addr);
 };
 
 void mtk_mmsys_register_conn_funcs(struct device *dev,
-- 
1.8.1.1.dirty
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