drm/radeon/kms/hdmi: use relative offsets, official regs

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Tested-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Christian König <deathsimple@vodafone.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index 426e5a7..a9652be 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -1056,9 +1056,12 @@
 #       define AFMT_AZ_FORMAT_WTRIG_MASK     (1 << 28)
 #       define AFMT_AZ_FORMAT_WTRIG_ACK      (1 << 29)
 #       define AFMT_AZ_AUDIO_ENABLE_CHG_ACK  (1 << 30)
+
+#define DCE2_HDMI_OFFSET0		(0x7400 - 0x7400)
+#define DCE2_HDMI_OFFSET1		(0x7700 - 0x7400)
 /* DCE3.2 second instance starts at 0x7800 */
-#define HDMI_OFFSET0                      (0x7400 - 0x7400)
-#define HDMI_OFFSET1                      (0x7800 - 0x7400)
+#define DCE3_HDMI_OFFSET0		(0x7400 - 0x7400)
+#define DCE3_HDMI_OFFSET1		(0x7800 - 0x7400)
 
 /*
  * PM4