drm/amd/display: Fix MST daisy chain SST not light up

Browse source

In SST daisy chain scenario, edid is getting read in mst hotplug
routine. It is getting conflict with drm send_enum_path_resources
kernel thread in terms of i2c bus which is getting locked up in
such case.

Have edid being read in get_mode hook, instead of in hotplug
routine.

Signed-off-by: Jerry Zuo <Jerry.Zuo@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jerry Zuo 2017-09-20 15:04:52 -04:00 • committed by Alex Deucher

parent 56e6ed4561

commit 5442765147

1 changed files with 49 additions and 61 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

110

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

View file