tree: git://people.freedesktop.org/~airlied/linux.git i915-mst-hacks
head: af3004ad2f660105ec8c5e623ece3b6055a76bd4
commit: 168c73f18028a35f98707f282576765be7becca7 [74/81] start adding drm MST
branch device and port trees
drivers/gpu/drm/drm_dp_helper.c:1500 drm_dp_mst_topology_mgr_set_mst() warn:
inconsistent returns mutex:&mgr->lock: locked (1479 [(-12)]) unlocked (1500 [0])
git remote add drm git://people.freedesktop.org/~airlied/linux.git
git remote update drm
git checkout 168c73f18028a35f98707f282576765be7becca7
vim +1500 drivers/gpu/drm/drm_dp_helper.c
4c8074ff Dave Airlie 2014-04-04 1484 /* kick off link address
discovery */
168c73f1 Dave Airlie 2014-04-08 1485
drm_dp_send_initial_link_address(mgr, mstb);
168c73f1 Dave Airlie 2014-04-08 1486
168c73f1 Dave Airlie 2014-04-08 1487 drm_dp_check_guid_is_valid(mgr,
mstb);
168c73f1 Dave Airlie 2014-04-08 1488
4c8074ff Dave Airlie 2014-04-04 1489 } else {
168c73f1 Dave Airlie 2014-04-08 1490 if (mgr->mst_primary) {
168c73f1 Dave Airlie 2014-04-08 1491
drm_dp_destroy_mst_branch_device(mgr->mst_primary);
168c73f1 Dave Airlie 2014-04-08 1492 mgr->mst_primary = NULL;
168c73f1 Dave Airlie 2014-04-08 1493 }
4c8074ff Dave Airlie 2014-04-04 1494 /* disable MST on the device */
4c8074ff Dave Airlie 2014-04-04 1495 ret =
drm_dp_dpcd_writeb(mgr->aux, DP_MSTM_CTRL, 0);
4c8074ff Dave Airlie 2014-04-04 1496 }
4c8074ff Dave Airlie 2014-04-04 1497
4c8074ff Dave Airlie 2014-04-04 1498 out_unlock:
4c8074ff Dave Airlie 2014-04-04 1499 mutex_unlock(&mgr->lock);
4c8074ff Dave Airlie 2014-04-04 @1500 return 0;
Also should this be "return ret;" or something?
4c8074ff Dave Airlie 2014-04-04 1501 }
4c8074ff Dave Airlie 2014-04-04 1502
EXPORT_SYMBOL(drm_dp_mst_topology_mgr_set_mst);
4c8074ff Dave Airlie 2014-04-04 1503
8ca19f0a Dave Airlie 2014-04-04 1504 static void drm_dp_get_one_sb_msg(struct
drm_dp_mst_topology_mgr *mgr, bool up)
4c8074ff Dave Airlie 2014-04-04 1505 {
168c73f1 Dave Airlie 2014-04-08 1506 int len;
4c8074ff Dave Airlie 2014-04-04 1507 u8 replyblock[32];
4c8074ff Dave Airlie 2014-04-04 1508 int replylen, origlen, curreply;
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