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| author | Alex Deucher <alexander.deucher@amd.com> | 2021-11-23 18:44:48 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-24 22:06:54 +0300 |
| commit | 1f5792549376b3c20639cef7b787cf6262177b66 (patch) | |
| tree | cf02f5f8f1e29b09eab50e3045d17b3fac0a14fe /drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h | |
| parent | 081664ef3e43dce93710ed5ece326478edbe0934 (diff) | |
| download | linux-1f5792549376b3c20639cef7b787cf6262177b66.tar.xz | |
drm/amd/display: update bios scratch when setting backlight
Update the bios scratch register when updating the backlight
level. Some platforms apparently read this scratch register
and do additional operations in their hotkey handlers.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1518
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/amdgpu_atombios.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h index 8cc0222dba19..27e74b1fc260 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.h @@ -185,6 +185,8 @@ bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev); void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock); void amdgpu_atombios_scratch_regs_engine_hung(struct amdgpu_device *adev, bool hung); +void amdgpu_atombios_scratch_regs_set_backlight_level(struct amdgpu_device *adev, + u32 backlight_level); bool amdgpu_atombios_scratch_need_asic_init(struct amdgpu_device *adev); void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le); |