--- a/sys/dev/drm/amd/display/dc/dce120/dce120_timing_generator.c
+++ b/sys/dev/drm/amd/display/dc/dce120/dce120_timing_generator.c
@@ -55,11 +55,11 @@
 		CRTC_REG_UPDATE_N(reg, 3, FD(reg##__##field1), val1, FD(reg##__##field2), val2, FD(reg##__##field3), val3)
 
 #define CRTC_REG_UPDATE_4(reg, field1, val1, field2, val2, field3, val3, field4, val4)	\
-		CRTC_REG_UPDATE_N(reg, 3, FD(reg##__##field1), val1, FD(reg##__##field2), val2, FD(reg##__##field3), val3, FD(reg##__##field4), val4)
+		CRTC_REG_UPDATE_N(reg, 4, FD(reg##__##field1), val1, FD(reg##__##field2), val2, FD(reg##__##field3), val3, FD(reg##__##field4), val4)
 
 #define CRTC_REG_UPDATE_5(reg, field1, val1, field2, val2, field3, val3, field4, val4, field5, val5)	\
-		CRTC_REG_UPDATE_N(reg, 3, FD(reg##__##field1), val1, FD(reg##__##field2), val2, FD(reg##__##field3), val3, FD(reg##__##field4), val4, FD(reg##__##field5), val5)
+		CRTC_REG_UPDATE_N(reg, 5, FD(reg##__##field1), val1, FD(reg##__##field2), val2, FD(reg##__##field3), val3, FD(reg##__##field4), val4, FD(reg##__##field5), val5)
 
 #define CRTC_REG_SET(reg, field, val)	\
 		CRTC_REG_SET_N(reg, 1, FD(reg##__##field), val)