]> git.baikalelectronics.ru Git - kernel.git/commit
drm/radeon: don't probe MST on hw we don't support it on
authorDave Airlie <airlied@redhat.com>
Thu, 18 Jun 2015 04:29:18 +0000 (14:29 +1000)
committerChristian König <christian.koenig@amd.com>
Thu, 18 Jun 2015 18:36:56 +0000 (20:36 +0200)
commit6975527d677916f66b05f7798db5180b56182fb6
tree760f4476788856c7f20fcafc14a1d12db2761f91
parent39ab606fa665fa4548d15018809c9871d92e02a6
drm/radeon: don't probe MST on hw we don't support it on

If you do radeon.mst=1 on a gpu without mst hw, and then
plug some mst hw it will oops instead of falling back.

So check we have DCE5 at least before proceeding.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
drivers/gpu/drm/radeon/radeon_dp_mst.c