diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
index 484080a0defa..0b5ca9025b3a 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
@@ -20,22 +20,22 @@
 #include "mtk_drm_ddp_comp.h"
 #include "mtk_drm_crtc.h"
 
-#define DISP_OD_EN				0x0000
-#define DISP_OD_CFG				0x0020
-#define DISP_OD_SIZE				0x0030
-#define DISP_DITHER_5				0x0114
-#define DISP_DITHER_7				0x011c
-#define DISP_DITHER_15				0x013c
-#define DISP_DITHER_16				0x0140
+#define DISP_REG_OD_EN				0x0000
+#define DISP_REG_OD_CFG				0x0020
+#define DISP_REG_OD_SIZE			0x0030
+#define DISP_REG_DITHER_5			0x0114
+#define DISP_REG_DITHER_7			0x011c
+#define DISP_REG_DITHER_15			0x013c
+#define DISP_REG_DITHER_16			0x0140
 
 #define DISP_REG_UFO_START			0x0000
 
-#define DISP_DITHER_EN				0x0000
+#define DISP_REG_DITHER_EN			0x0000
 #define DITHER_EN				BIT(0)
-#define DISP_DITHER_CFG				0x0020
+#define DISP_REG_DITHER_CFG			0x0020
 #define DITHER_RELAY_MODE			BIT(0)
 #define DITHER_ENGINE_EN			BIT(1)
-#define DISP_DITHER_SIZE			0x0030
+#define DISP_REG_DITHER_SIZE			0x0030
 
 #define OD_RELAYMODE				BIT(0)
 
@@ -124,19 +124,19 @@ void mtk_dither_set_common(void __iomem *regs, struct cmdq_client_reg *cmdq_reg,
 		return;
 
 	if (bpc >= MTK_MIN_BPC) {
-		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_DITHER_5);
-		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_DITHER_7);
+		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_REG_DITHER_5);
+		mtk_ddp_write(cmdq_pkt, 0, cmdq_reg, regs, DISP_REG_DITHER_7);
 		mtk_ddp_write(cmdq_pkt,
 			      DITHER_LSB_ERR_SHIFT_R(MTK_MAX_BPC - bpc) |
 			      DITHER_ADD_LSHIFT_R(MTK_MAX_BPC - bpc) |
 			      DITHER_NEW_BIT_MODE,
-			      cmdq_reg, regs, DISP_DITHER_15);
+			      cmdq_reg, regs, DISP_REG_DITHER_15);
 		mtk_ddp_write(cmdq_pkt,
 			      DITHER_LSB_ERR_SHIFT_B(MTK_MAX_BPC - bpc) |
 			      DITHER_ADD_LSHIFT_B(MTK_MAX_BPC - bpc) |
 			      DITHER_LSB_ERR_SHIFT_G(MTK_MAX_BPC - bpc) |
 			      DITHER_ADD_LSHIFT_G(MTK_MAX_BPC - bpc),
-			      cmdq_reg, regs, DISP_DITHER_16);
+			      cmdq_reg, regs, DISP_REG_DITHER_16);
 		mtk_ddp_write(cmdq_pkt, dither_en, cmdq_reg, regs, cfg);
 	}
 }
@@ -156,16 +156,16 @@ static void mtk_od_config(struct device *dev, unsigned int w,
 {
 	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
 
-	mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_OD_SIZE);
-	mtk_ddp_write(cmdq_pkt, OD_RELAYMODE, &priv->cmdq_reg, priv->regs, DISP_OD_CFG);
-	mtk_dither_set(dev, bpc, DISP_OD_CFG, cmdq_pkt);
+	mtk_ddp_write(cmdq_pkt, w << 16 | h, &priv->cmdq_reg, priv->regs, DISP_REG_OD_SIZE);
+	mtk_ddp_write(cmdq_pkt, OD_RELAYMODE, &priv->cmdq_reg, priv->regs, DISP_REG_OD_CFG);
+	mtk_dither_set(dev, bpc, DISP_REG_OD_CFG, cmdq_pkt);
 }
 
 static void mtk_od_start(struct device *dev)
 {
 	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
 
-	writel(1, priv->regs + DISP_OD_EN);
+	writel(1, priv->regs + DISP_REG_OD_EN);
 }
 
 static void mtk_ufoe_start(struct device *dev)
@@ -181,9 +181,10 @@ static void mtk_dither_config(struct device *dev, unsigned int w,
 {
 	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
 
-	mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, DISP_DITHER_SIZE);
-	mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, &priv->cmdq_reg, priv->regs, DISP_DITHER_CFG);
-	mtk_dither_set_common(priv->regs, &priv->cmdq_reg, bpc, DISP_DITHER_CFG,
+	mtk_ddp_write(cmdq_pkt, h << 16 | w, &priv->cmdq_reg, priv->regs, DISP_REG_DITHER_SIZE);
+	mtk_ddp_write(cmdq_pkt, DITHER_RELAY_MODE, &priv->cmdq_reg, priv->regs,
+		      DISP_REG_DITHER_CFG);
+	mtk_dither_set_common(priv->regs, &priv->cmdq_reg, bpc, DISP_REG_DITHER_CFG,
 			      DITHER_ENGINE_EN, cmdq_pkt);
 }
 
@@ -191,14 +192,14 @@ static void mtk_dither_start(struct device *dev)
 {
 	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
 
-	writel(DITHER_EN, priv->regs + DISP_DITHER_EN);
+	writel(DITHER_EN, priv->regs + DISP_REG_DITHER_EN);
 }
 
 static void mtk_dither_stop(struct device *dev)
 {
 	struct mtk_ddp_comp_dev *priv = dev_get_drvdata(dev);
 
-	writel_relaxed(0x0, priv->regs + DISP_DITHER_EN);
+	writel_relaxed(0x0, priv->regs + DISP_REG_DITHER_EN);
 }
 
 static const struct mtk_ddp_comp_funcs ddp_aal = {
