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