diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
index 0e308feb492a..fe0bb1de6f08 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.c
@@ -836,7 +836,8 @@ static const u32 bicubic4coefftab32[480] = {
 static u32 sun8i_vi_scaler_base(struct sun8i_mixer *mixer, int channel)
 {
 	if (mixer->cfg->de_type == SUN8I_MIXER_DE33)
-		return sun8i_channel_base(mixer, channel) + 0x3000;
+		return DE33_VI_SCALER_UNIT_BASE +
+		       DE33_CH_SIZE * channel;
 	else if (mixer->cfg->de_type == SUN8I_MIXER_DE3)
 		return DE3_VI_SCALER_UNIT_BASE +
 		       DE3_VI_SCALER_UNIT_SIZE * channel;
diff --git a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h
index 73eecc4d1b1d..245fe2f431c3 100644
--- a/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h
+++ b/drivers/gpu/drm/sun4i/sun8i_vi_scaler.h
@@ -18,6 +18,8 @@
 #define DE3_VI_SCALER_UNIT_BASE 0x20000
 #define DE3_VI_SCALER_UNIT_SIZE 0x08000
 
+#define DE33_VI_SCALER_UNIT_BASE 0x4000
+
 /* this two macros assumes 16 fractional bits which is standard in DRM */
 #define SUN8I_VI_SCALER_SCALE_MIN		1
 #define SUN8I_VI_SCALER_SCALE_MAX		((1UL << 20) - 1)