smu_set_power_limit
ret = smu_set_power_limit(smu, smu->current_power_limit);
.set_power_limit = smu_set_power_limit,
ret = smu_set_power_limit(smu, smu->user_dpm_profile.power_limit);
static int smu_set_power_limit(void *handle, uint32_t limit);