ATOM_S6_VRI_BRIGHTNESS_CHANGE_SHIFT 7045 drivers/gpu/drm/amd/include/atombios.h #define ATOM_S6_VRI_BRIGHTNESS_CHANGE_SHIFT     30
ATOM_S6_VRI_BRIGHTNESS_CHANGE_SHIFT 5899 drivers/gpu/drm/radeon/atombios.h #define ATOM_S6_VRI_BRIGHTNESS_CHANGE_SHIFT     30