sh_cmt_read_cmcsr
u32 old_value = sh_cmt_read_cmcsr(ch);
int ret = read_poll_timeout_atomic(sh_cmt_read_cmcsr, reg,
o1 = sh_cmt_read_cmcsr(ch) & ch->cmt->info->overflow_bit;
o1 = sh_cmt_read_cmcsr(ch) & ch->cmt->info->overflow_bit;
sh_cmt_write_cmcsr(ch, sh_cmt_read_cmcsr(ch) &