abmlevel          743 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c MODULE_PARM_DESC(abmlevel, "ABM level (0 = off (default), 1-4 = backlight reduction level) ");
abmlevel          744 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c module_param_named(abmlevel, amdgpu_dm_abm_level, uint, 0444);