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drm/i915/dp: Probe branch/sink OUIs

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Signed-off-by: Adam Jackson <ajax@redhat.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Adam Jackson 2012-05-14 16:05:47 -04:00 committed by Dave Airlie
parent de44d97193
commit 0d19832853
1 changed files with 19 additions and 0 deletions
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19
drivers/gpu/drm/i915/intel_dp.c
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@ -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 {