Linux kernel bug fix: drm/amdgpu: save/restore backlight level in legacy dce code
Subsystem: gpu/amd (drivers/gpu/drm/amd/amdgpu/atombios_encoders.c)
Bug type: crash, severity: high
Files changed: drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h;drivers/gpu/drm/amd/amdgpu/atombios_encoders.c;drivers/gpu/drm/amd/amdgpu/atombios_encoders.h;drivers/gpu/drm/amd/amdgpu/dce_v10_0.c;drivers/gpu/drm/amd/amdgpu/dce_v11_0.c;drivers/gpu/drm/amd/amdgpu/dce_v6_0.c;drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
Introduced by Alex Deucher on 2017-12-13 17:28:09 -0500; fixed by Alex Deucher on 2018-03-14 15:39:51 -0500 (lifetime: 90 days)