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Commit 8fed6193 authored by Takashi Iwai's avatar Takashi Iwai Committed by Daniel Vetter
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drm/i915: Enable DP audio for Haswell 



This patch adds the missing code to send ELD for Haswell DisplayPort,
based on Xingchao's original patch.

A test was performed with HSW-D machine and NEC EA232Wmi DP monitor.

Cc: Xingchao Wang <xingchao.wang@intel.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Reviewed-by: default avatarPaulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent c9839303

drivers/gpu/drm/i915/intel_ddi.c

+9 −0
Original line number Diff line number Diff line
@@ -669,6 +669,15 @@ static void intel_ddi_mode_set(struct drm_encoder *encoder, 
			break;

		}



		if (intel_dp->has_audio) {

			DRM_DEBUG_DRIVER("DP audio on pipe %c on DDI\n",

					 pipe_name(intel_crtc->pipe));



			/* write eld */

			DRM_DEBUG_DRIVER("DP audio: write eld information\n");

			intel_write_eld(encoder, adjusted_mode);

		}



		intel_dp_init_link_config(intel_dp);



	} else if (type == INTEL_OUTPUT_HDMI) {