APSS_CPUCP_IPC_CHAN_SUPPORTED
mbox->num_chans = APSS_CPUCP_IPC_CHAN_SUPPORTED;
struct mbox_chan chans[APSS_CPUCP_IPC_CHAN_SUPPORTED];
for_each_set_bit(i, (unsigned long *)&status, APSS_CPUCP_IPC_CHAN_SUPPORTED) {