From: Ville Syrjälä <[email protected]> IBX BSpec says we must specify 8bpc in TRANSCONF for both 8bpc and 12bpc HDMI output. Do so.
v2: Pass intel_crtc to intel_pipe_has_type() Signed-off-by: Ville Syrjälä <[email protected]> --- drivers/gpu/drm/i915/intel_display.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 96ce8f6..a392188 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2001,11 +2001,15 @@ static void ironlake_enable_pch_transcoder(struct drm_i915_private *dev_priv, if (HAS_PCH_IBX(dev_priv->dev)) { /* - * make the BPC in transcoder be consistent with - * that in pipeconf reg. + * Make the BPC in transcoder be consistent with + * that in pipeconf reg. For HDMI we must use 8bpc + * here for both 8bpc and 12bpc. */ val &= ~PIPECONF_BPC_MASK; - val |= pipeconf_val & PIPECONF_BPC_MASK; + if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_HDMI)) + val |= PIPECONF_8BPC; + else + val |= pipeconf_val & PIPECONF_BPC_MASK; } val &= ~TRANS_INTERLACE_MASK; -- 2.0.5 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
