IIO core (ACPI part) provides a generic helper that may be used in
the driver. Replace a variant of iio_get_acpi_device_name_and_data().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/iio/light/ltr501.c | 25 ++++++++-----------------
 1 file changed, 8 insertions(+), 17 deletions(-)

diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 4051d0d9e799..c389be6a106d 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -15,7 +15,6 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/regmap.h>
-#include <linux/acpi.h>
 #include <linux/regulator/consumer.h>
 
 #include <linux/iio/iio.h>
@@ -1422,17 +1421,6 @@ static int ltr501_powerdown(struct ltr501_data *data)
 				  data->ps_contr & ~LTR501_CONTR_ACTIVE);
 }
 
-static const char *ltr501_match_acpi_device(struct device *dev, int *chip_idx)
-{
-	const struct acpi_device_id *id;
-
-	id = acpi_match_device(dev->driver->acpi_match_table, dev);
-	if (!id)
-		return NULL;
-	*chip_idx = id->driver_data;
-	return dev_name(dev);
-}
-
 static int ltr501_probe(struct i2c_client *client)
 {
 	const struct i2c_device_id *id = i2c_client_get_device_id(client);
@@ -1440,8 +1428,10 @@ static int ltr501_probe(struct i2c_client *client)
 	struct ltr501_data *data;
 	struct iio_dev *indio_dev;
 	struct regmap *regmap;
-	int ret, partid, chip_idx = 0;
-	const char *name = NULL;
+	int partid, chip_idx;
+	const void *ddata;
+	const char *name;
+	int ret;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (!indio_dev)
@@ -1523,11 +1513,12 @@ static int ltr501_probe(struct i2c_client *client)
 	if (id) {
 		name = id->name;
 		chip_idx = id->driver_data;
-	} else  if (ACPI_HANDLE(&client->dev)) {
-		name = ltr501_match_acpi_device(&client->dev, &chip_idx);
 	} else {
-		return -ENODEV;
+		name = iio_get_acpi_device_name_and_data(&client->dev, &ddata);
+		chip_idx = (intptr_t)ddata;
 	}
+	if (!name)
+		return -ENODEV;
 
 	data->chip_info = &ltr501_chip_info_tbl[chip_idx];
 
-- 
2.43.0.rc1.1336.g36b5255a03ac