Star64_linux/drivers/gpu/drm/amd/display
Lyude Paul fe7553bef8 drm/amdgpu: Don't ignore rc from drm_dp_mst_topology_mgr_resume()
drm_dp_mst_topology_mgr_resume() returns whether or not it managed to
find the topology in question after a suspend resume cycle, and the
driver is supposed to check this value and disable MST accordingly if
it's gone-in addition to sending a hotplug in order to notify userspace
that something changed during suspend.

Currently, amdgpu just makes the mistake of ignoring the return code
from drm_dp_mst_topology_mgr_resume() which means that if a topology was
removed in suspend, amdgpu never notices and assumes it's still
connected which leads to all sorts of problems.

So, fix this by actually checking the rc from
drm_dp_mst_topology_mgr_resume(). Also, reformat the rest of the
function while we're at it to fix the over-indenting.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Cc: Jerry Zuo <Jerry.Zuo@amd.com>
Cc: <stable@vger.kernel.org> # v4.15+
Link: https://patchwork.freedesktop.org/patch/msgid/20190108211133.32564-2-lyude@redhat.com
2019-01-08 17:58:24 -05:00
..
amdgpu_dm drm/amdgpu: Don't ignore rc from drm_dp_mst_topology_mgr_resume() 2019-01-08 17:58:24 -05:00
dc drm/amd/display: Fix MST dp_blank REG_WAIT timeout 2018-12-20 12:13:35 -05:00
include drm/amd/display: Add functionality to get XGMI SS info 2018-12-18 17:39:56 -05:00
modules drm/amd/display: Info frame cleanup 2018-11-30 12:02:28 -05:00
Kconfig drm/amd/display: Add DC config flag for Raven2 (v2) 2018-09-14 09:36:56 -05:00
Makefile drm/amd/display: Load DMCU IRAM 2018-11-26 15:47:53 -05:00
TODO drm/amd/display: Convert remaining loggers off dc_logger 2018-07-13 14:48:42 -05:00