tps23881_set_val
val = tps23881_set_val(ret, chan, 0, 0xff, pw_pol);
val = tps23881_set_val(ret, chan, 0, BIT(chan % 4), BIT(chan % 4));
val = tps23881_set_val(0, chan, 0, BIT(chan % 4), BIT(chan % 4));
val = tps23881_set_val(val, chan, 0, BIT(chan % 4),
val = tps23881_set_val(ret, chan, 0, BIT(chan % 4), BIT(chan % 4));
val = tps23881_set_val(0, chan, 4, BIT(chan % 4), BIT(chan % 4));
val = tps23881_set_val(val, chan, 4, BIT(chan % 4),
val = tps23881_set_val(ret, chan, 0, 0, BIT(chan % 4));
val = tps23881_set_val(ret, chan, 0, BIT(chan % 4), BIT(chan % 4));
val = tps23881_set_val(val, chan, 4, BIT(chan % 4), BIT(chan % 4));
val = tps23881_set_val(ret, chan, 0, BIT(chan % 4),
val = tps23881_set_val(val, chan, 4, BIT(chan % 4),