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Commit 0d198328 authored by Adam Jackson's avatar Adam Jackson Committed by Dave Airlie
Browse files

drm/i915/dp: Probe branch/sink OUIs 



Signed-off-by: default avatarAdam Jackson <ajax@redhat.com>
Acked-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent de44d971

drivers/gpu/drm/i915/intel_dp.c

+19 −0
Original line number Diff line number Diff line
@@ -1961,6 +1961,23 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp) 
	return false;

}



static void

intel_dp_probe_oui(struct intel_dp *intel_dp)

{

	u8 buf[3];



	if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))

		return;



	if (intel_dp_aux_native_read_retry(intel_dp, DP_SINK_OUI, buf, 3))

		DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n",

			      buf[0], buf[1], buf[2]);



	if (intel_dp_aux_native_read_retry(intel_dp, DP_BRANCH_OUI, buf, 3))

		DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n",

			      buf[0], buf[1], buf[2]);

}



static bool

intel_dp_get_sink_irq(struct intel_dp *intel_dp, u8 *sink_irq_vector)

{
@@ -2144,6 +2161,8 @@ intel_dp_detect(struct drm_connector *connector, bool force) 
	if (status != connector_status_connected)

		return status;



	intel_dp_probe_oui(intel_dp);



	if (intel_dp->force_audio != HDMI_AUDIO_AUTO) {

		intel_dp->has_audio = (intel_dp->force_audio == HDMI_AUDIO_ON);

	} else {