drm/i915: Set the LVDS_BORDER when using LVDS scaling mode

[mirror_ubuntu-zesty-kernel.git] / drivers / gpu / drm / i915 / intel_display.c

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3c14240cc0028d32cada1af63a069e78776ea306..9efe11761be37ddd70b0a394277be2ec3f3a27b8 100644 (file)
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2936,6 +2936,8 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 
                lvds = I915_READ(lvds_reg);
                lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP | LVDS_PIPEB_SELECT;
+               /* set the corresponsding LVDS_BORDER bit */
+               lvds |= dev_priv->lvds_border_bits;
                /* Set the B0-B3 data pairs corresponding to whether we're going to
                 * set the DPLLs for dual-channel mode or not.
                 */