drm/amd/display: Implement dm_get_timestamp

We use this to ensure we wait at least 500ms in between eDP
disable/enable.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harry Wentland 2018-03-23 13:39:27 -04:00 • committed by Alex Deucher
commit 4c61af8afe