diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.c b/drivers/gpu/drm/sun4i/sun8i_mixer.c
index b947ee2e4fe42f5d0707e2a5304b40f35b5a68df..f4a7fa0ba7ad77abef31d3e0fa52508202714b86 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.c
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.c
@@ -320,14 +320,10 @@ static int sun8i_mixer_bind(struct device *dev, struct device *master,
 	/* Initialize blender */
 	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_FCOLOR_CTL,
 		     SUN8I_MIXER_BLEND_FCOLOR_CTL_DEF);
-	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_PREMULTIPLY,
-		     SUN8I_MIXER_BLEND_PREMULTIPLY_DEF);
 	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_BKCOLOR,
 		     SUN8I_MIXER_BLEND_BKCOLOR_DEF);
 	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_MODE(0),
 		     SUN8I_MIXER_BLEND_MODE_DEF);
-	regmap_write(mixer->engine.regs, SUN8I_MIXER_BLEND_CK_CTL,
-		     SUN8I_MIXER_BLEND_CK_CTL_DEF);
 
 	regmap_write(mixer->engine.regs,
 		     SUN8I_MIXER_BLEND_ATTR_FCOLOR(0),
diff --git a/drivers/gpu/drm/sun4i/sun8i_mixer.h b/drivers/gpu/drm/sun4i/sun8i_mixer.h
index a7fe013c1d4ac8e28be0462bca8748676dd78794..db005a4bca43b8204381c277224687a3dfdb6838 100644
--- a/drivers/gpu/drm/sun4i/sun8i_mixer.h
+++ b/drivers/gpu/drm/sun4i/sun8i_mixer.h
@@ -48,10 +48,8 @@
 /* The following numbers are some still unknown magic numbers */
 #define SUN8I_MIXER_BLEND_ATTR_FCOLOR_DEF	0xff000000
 #define SUN8I_MIXER_BLEND_FCOLOR_CTL_DEF	0x00000101
-#define SUN8I_MIXER_BLEND_PREMULTIPLY_DEF	0x0
 #define SUN8I_MIXER_BLEND_BKCOLOR_DEF		0xff000000
 #define SUN8I_MIXER_BLEND_MODE_DEF		0x03010301
-#define SUN8I_MIXER_BLEND_CK_CTL_DEF		0x0
 
 #define SUN8I_MIXER_BLEND_OUTCTL_INTERLACED	BIT(1)