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| author | Alex Deucher <alexander.deucher@amd.com> | 2018-03-08 17:56:01 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-03-14 23:39:51 +0300 |
| commit | b5e3241316973b9f01228d2fa5b8b2bb157d44aa (patch) | |
| tree | d1ee97f9c84e3957ab7bcd50a40aee08e6a0f2aa /drivers/gpu/drm/amd/amdgpu/atombios_encoders.h | |
| parent | 0f4f715bc6bed3bf14c5cd7d5fe88d443e756b14 (diff) | |
| download | linux-b5e3241316973b9f01228d2fa5b8b2bb157d44aa.tar.xz | |
drm/amdgpu: save/restore backlight level in legacy dce code
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)
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/atombios_encoders.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/atombios_encoders.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.h b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.h index 2bdec40515ce..f77cbdef679e 100644 --- a/drivers/gpu/drm/amd/amdgpu/atombios_encoders.h +++ b/drivers/gpu/drm/amd/amdgpu/atombios_encoders.h @@ -25,6 +25,11 @@ #define __ATOMBIOS_ENCODER_H__ u8 +amdgpu_atombios_encoder_get_backlight_level_from_reg(struct amdgpu_device *adev); +void +amdgpu_atombios_encoder_set_backlight_level_to_reg(struct amdgpu_device *adev, + u8 backlight_level); +u8 amdgpu_atombios_encoder_get_backlight_level(struct amdgpu_encoder *amdgpu_encoder); void amdgpu_atombios_encoder_set_backlight_level(struct amdgpu_encoder *amdgpu_encoder, |