gmc_v9_0_init_golden_registers(adev);
 
        if (adev->mode_info.num_crtc) {
-               u32 tmp;
-
                /* Lockout access through VGA aperture*/
-               tmp = RREG32_SOC15(DCE, 0, mmVGA_HDP_CONTROL);
-               tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
-               WREG32_SOC15(DCE, 0, mmVGA_HDP_CONTROL, tmp);
+               WREG32_FIELD15(DCE, 0, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 
                /* disable VGA render */
-               tmp = RREG32_SOC15(DCE, 0, mmVGA_RENDER_CONTROL);
-               tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
-               WREG32_SOC15(DCE, 0, mmVGA_RENDER_CONTROL, tmp);
+               WREG32_FIELD15(DCE, 0, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
        }
 
        r = gmc_v9_0_gart_enable(adev);