diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 57980829a1b1..242df99f8b1a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4909,8 +4909,7 @@ enum punit_power_well {
 #define _PCH_TRANSA_LINK_M2	0xe0048
 #define _PCH_TRANSA_LINK_N2	0xe004c
 
-/* Per-transcoder DIP controls */
-
+/* Per-transcoder DIP controls (PCH) */
 #define _VIDEO_DIP_CTL_A         0xe0200
 #define _VIDEO_DIP_DATA_A        0xe0208
 #define _VIDEO_DIP_GCP_A         0xe0210
@@ -4923,6 +4922,7 @@ enum punit_power_well {
 #define TVIDEO_DIP_DATA(pipe) _PIPE(pipe, _VIDEO_DIP_DATA_A, _VIDEO_DIP_DATA_B)
 #define TVIDEO_DIP_GCP(pipe) _PIPE(pipe, _VIDEO_DIP_GCP_A, _VIDEO_DIP_GCP_B)
 
+/* Per-transcoder DIP controls (VLV) */
 #define VLV_VIDEO_DIP_CTL_A		(VLV_DISPLAY_BASE + 0x60200)
 #define VLV_VIDEO_DIP_DATA_A		(VLV_DISPLAY_BASE + 0x60208)
 #define VLV_VIDEO_DIP_GDCP_PAYLOAD_A	(VLV_DISPLAY_BASE + 0x60210)
@@ -4931,12 +4931,19 @@ enum punit_power_well {
 #define VLV_VIDEO_DIP_DATA_B		(VLV_DISPLAY_BASE + 0x61174)
 #define VLV_VIDEO_DIP_GDCP_PAYLOAD_B	(VLV_DISPLAY_BASE + 0x61178)
 
+#define CHV_VIDEO_DIP_CTL_C		(VLV_DISPLAY_BASE + 0x611f0)
+#define CHV_VIDEO_DIP_DATA_C		(VLV_DISPLAY_BASE + 0x611f4)
+#define CHV_VIDEO_DIP_GDCP_PAYLOAD_C	(VLV_DISPLAY_BASE + 0x611f8)
+
 #define VLV_TVIDEO_DIP_CTL(pipe) \
-	 _PIPE(pipe, VLV_VIDEO_DIP_CTL_A, VLV_VIDEO_DIP_CTL_B)
+	_PIPE3((pipe), VLV_VIDEO_DIP_CTL_A, \
+	       VLV_VIDEO_DIP_CTL_B, CHV_VIDEO_DIP_CTL_C)
 #define VLV_TVIDEO_DIP_DATA(pipe) \
-	 _PIPE(pipe, VLV_VIDEO_DIP_DATA_A, VLV_VIDEO_DIP_DATA_B)
+	_PIPE3((pipe), VLV_VIDEO_DIP_DATA_A, \
+	       VLV_VIDEO_DIP_DATA_B, CHV_VIDEO_DIP_DATA_C)
 #define VLV_TVIDEO_DIP_GCP(pipe) \
-	_PIPE(pipe, VLV_VIDEO_DIP_GDCP_PAYLOAD_A, VLV_VIDEO_DIP_GDCP_PAYLOAD_B)
+	_PIPE3((pipe), VLV_VIDEO_DIP_GDCP_PAYLOAD_A, \
+		VLV_VIDEO_DIP_GDCP_PAYLOAD_B, CHV_VIDEO_DIP_GDCP_PAYLOAD_C)
 
 /* Haswell DIP controls */
 #define HSW_VIDEO_DIP_CTL_A		0x60200