PIOBU_DIRECTION
int ret = sama5d2_piobu_read_value(chip, pin, PIOBU_DIRECTION);
return sama5d2_piobu_write_value(chip, pin, PIOBU_DIRECTION, PIOBU_IN);
return sama5d2_piobu_write_value(chip, pin, PIOBU_DIRECTION | PIOBU_SOD,