MXS_AUART_RTSCTS
&& test_bit(MXS_AUART_RTSCTS, &s->flags)) {
if (test_bit(MXS_AUART_RTSCTS, &s->flags))
clear_bit(MXS_AUART_RTSCTS, &s->flags);
set_bit(MXS_AUART_RTSCTS, &s->flags);