diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index 9db49aa186bb..e17c1cb12c94 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -652,17 +652,10 @@ static ssize_t adt7316_store_da_high_resolution(struct device *dev,
 	u8 config3;
 	int ret;
 
-	chip->dac_bits = 8;
-
-	if (buf[0] == '1') {
+	if (buf[0] == '1')
 		config3 = chip->config3 | ADT7316_DA_HIGH_RESOLUTION;
-		if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
-			chip->dac_bits = 12;
-		else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
-			chip->dac_bits = 10;
-	} else {
+	else
 		config3 = chip->config3 & (~ADT7316_DA_HIGH_RESOLUTION);
-	}
 
 	ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, config3);
 	if (ret)
@@ -2145,6 +2138,13 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 	else
 		return -ENODEV;
 
+	if (chip->id == ID_ADT7316 || chip->id == ID_ADT7516)
+		chip->dac_bits = 12;
+	else if (chip->id == ID_ADT7317 || chip->id == ID_ADT7517)
+		chip->dac_bits = 10;
+	else
+		chip->dac_bits = 8;
+
 	chip->ldac_pin = devm_gpiod_get_optional(dev, "adi,ldac", GPIOD_OUT_LOW);
 	if (IS_ERR(chip->ldac_pin)) {
 		ret = PTR_ERR(chip->ldac_pin);