ATMEL_TC_QDEN
bmr &= ~(ATMEL_TC_QDEN | ATMEL_TC_POSEN);
bmr |= ATMEL_TC_QDEN | ATMEL_TC_POSEN;
ret = regmap_update_bits(regmap, ATMEL_TC_BMR, ATMEL_TC_QDEN | ATMEL_TC_POSEN, 0);