/* Returns : OK if register call-back succeeded, others if failed.  */
s32 ccu_reg_mclk_cb(__maybe_unused u32 mclk, __pNotifier_t pcb)
/* Returns : OK if register call-back succeeded, others if failed.  */
s32 ccu_reg_mclk_cb(__maybe_unused u32 mclk, __pNotifier_t pcb)
{
    return notifier_insert(&apbs2_notifier_head, pcb);
}