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David Francis authored
[Why] This hook that is supposed to read the actual backlight value is used in a few places throughout the kernel to setup or force update on backlight [How] Create a dc function that calls the existing abm function, and call that function from amdgpu Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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