diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
index c4984c5fb2dbb7743274f7c08bdef1f40755eb8d..56984ff09ea9b1867ba519a32cb297d91ce35c32 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
@@ -111,7 +111,7 @@
 
 #define RREG32_SOC15_DPG_MODE_2_0(inst_idx, offset, mask_en) 					\
 	({											\
-		WREG32_SOC15(VCN, inst, mmUVD_DPG_LMA_CTL, 					\
+		WREG32_SOC15(VCN, inst_idx, mmUVD_DPG_LMA_CTL, 					\
 			(0x0 << UVD_DPG_LMA_CTL__READ_WRITE__SHIFT |				\
 			mask_en << UVD_DPG_LMA_CTL__MASK_EN__SHIFT |				\
 			offset << UVD_DPG_LMA_CTL__READ_WRITE_ADDR__SHIFT));			\