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Commit c5de7c6f authored by Ville Syrjälä's avatar Ville Syrjälä Committed by Daniel Vetter
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drm/i915: Fix HDMI 12bpc TRANSCONF bpc value 



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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: default avatarChandra Konduru <Chandra.konduru@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 12aa3290

drivers/gpu/drm/i915/intel_display.c

+7 −3
Original line number Diff line number Diff line
@@ -2003,10 +2003,14 @@ 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;

		if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_HDMI))

			val |= PIPECONF_8BPC;

		else

			val |= pipeconf_val & PIPECONF_BPC_MASK;

	}