diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 85b9e2f521a0..19a7a1e183cb 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6369,8 +6369,8 @@ static void vlv_pllb_recal_opamp(struct drm_i915_private *dev_priv, enum pipe vlv_dpio_write(dev_priv, pipe, VLV_PLL_DW9(1), reg_val); reg_val = vlv_dpio_read(dev_priv, pipe, VLV_REF_DW13); - reg_val &= 0x8cffffff; - reg_val = 0x8c000000; + reg_val &= 0x00ffffff; + reg_val |= 0x8c000000; vlv_dpio_write(dev_priv, pipe, VLV_REF_DW13, reg_val); reg_val = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW9(1));