diff options
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index ca3b8a8933c6..ae1718549eec 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3888,6 +3888,11 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, udelay(150); } + if (HAS_PCH_SPLIT(dev)) { + pipeconf &= ~PIPE_ENABLE_DITHER; + pipeconf &= ~PIPE_DITHER_TYPE_MASK; + } + /* The LVDS pin pair needs to be on before the DPLLs are enabled. * This is an exception to the general rule that mode_set doesn't turn * things on. @@ -3930,16 +3935,13 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc, if (dev_priv->lvds_dither) { if (HAS_PCH_SPLIT(dev)) { pipeconf |= PIPE_ENABLE_DITHER; - pipeconf &= ~PIPE_DITHER_TYPE_MASK; pipeconf |= PIPE_DITHER_TYPE_ST01; } else lvds |= LVDS_ENABLE_DITHER; } else { - if (HAS_PCH_SPLIT(dev)) { - pipeconf &= ~PIPE_ENABLE_DITHER; - pipeconf &= ~PIPE_DITHER_TYPE_MASK; - } else + if (!HAS_PCH_SPLIT(dev)) { lvds &= ~LVDS_ENABLE_DITHER; + } } } I915_WRITE(lvds_reg, lvds); |