diff options
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 716ab9ea19b..606924ef65a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3492,10 +3492,17 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, lvds = I915_READ(lvds_reg); lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP; - if (pipe == 1) - lvds |= LVDS_PIPEB_SELECT; - else - lvds &= ~LVDS_PIPEB_SELECT; + if (pipe == 1) { + if (HAS_PCH_CPT(dev)) + lvds |= PORT_TRANS_B_SEL_CPT; + else + lvds |= LVDS_PIPEB_SELECT; + } else { + if (HAS_PCH_CPT(dev)) + lvds &= ~PORT_TRANS_SEL_MASK; + else + lvds &= ~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 |