[PATCH] drm/amdgpu: save/restore backlight level in legacy dce code

[michel@xxxxxxxxxxx (Michel Dänzer)]

On 2018-03-08 09:21 PM, Alex Deucher wrote:
> Save/restore the backlight level scratch register in S3/S4 so the
> backlight level comes back at the previously requested level.
> 
> Bug: https://bugzilla.kernel.org/show_bug.cgi?id=199047
> Fixes: 4ec6ecf48c64d (drm/amdgpu: drop scratch regs save and restore from S3/S4 handling)
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

Acked-by: Michel Dänzer <michel.daenzer at amd.com>

Might be nice to get Harry or someone else from the display team to take
a look as well.


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer