sumo_dpm_pre_set_power_state 1504 drivers/gpu/drm/radeon/radeon_asic.c .pre_set_power_state = &sumo_dpm_pre_set_power_state, sumo_dpm_pre_set_power_state 583 drivers/gpu/drm/radeon/radeon_asic.h int sumo_dpm_pre_set_power_state(struct radeon_device *rdev);