Signed-off-by: Adam Jackson <a...@redhat.com>
---
drivers/gpu/drm/nouveau/nouveau_dp.c | 21 +++++++++++++++++++++
1 files changed, 21 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c
b/drivers/gpu/drm/nouveau/nouveau_dp.c
index d996134..bc50c7d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -510,6 +510,25 @@ nouveau_dp_dpms(struct drm_encoder *encoder, int mode, u32
datarate,
nouveau_dp_link_train(encoder, datarate, func);
}
+static void
+nouveau_dp_probe_oui(struct drm_device *dev, nouveau_i2c_chan *auxch,
+ u8 *dpcd)
+{
+ u8 buf[3];
+
+ if (!(dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT))
+ return;
+
+ if (!auxch_tx(dev, auxch->drive, 9, DP_SINK_OUI, buf, 3))
+ NV_DEBUG_KMS(dev, "Sink OUI: %02hx%02hx%02hx\n",
+ buf[0], buf[1], buf[2]);
+
+ if (!auxch_tx(dev, auxch->drive, 9, DP_BRANCH_OUI, buf, 3))
+ NV_DEBUG_KMS(dev, "Branch OUI: %02hx%02hx%02hx\n",
+ buf[0], buf[1], buf[2]);
+
+}
+
bool
nouveau_dp_detect(struct drm_encoder *encoder)
{
@@ -544,6 +563,8 @@ nouveau_dp_detect(struct drm_encoder *encoder)
NV_DEBUG_KMS(dev, "maximum: %dx%d\n",
nv_encoder->dp.link_nr, nv_encoder->dp.link_bw);
+ nouveau_dp_probe_oui(dev, auxch, dpcd);
+
return true;
}
--
1.7.7.6
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel
