iio: adc: ltc2497: Get platform data via dev_get_platdata()

Access to platform data via dev_get_platdata() getter to make code cleaner.

While at it, drop duplicate NULL check that iio_map_array_register()
already has.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://patch.msgid.link/20240902222824.1145571-7-andy.shevchenko@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ltc2497-core.c b/drivers/iio/adc/ltc2497-core.c
index 996f6cbbed3ce161c7ad6acda6289607197caae8..ad8ddf80310e97c552ad2bfe99c44dd3fc0aa3d1 100644 (file)
--- a/drivers/iio/adc/ltc2497-core.c
+++ b/drivers/iio/adc/ltc2497-core.c
@@ -168,6 +168,7 @@ static const struct iio_info ltc2497core_info = {
 int ltc2497core_probe(struct device *dev, struct iio_dev *indio_dev)
 {
        struct ltc2497core_driverdata *ddata = iio_priv(indio_dev);
+       struct iio_map *plat_data = dev_get_platdata(dev);
        int ret;
 
        /*
@@ -200,16 +201,10 @@ int ltc2497core_probe(struct device *dev, struct iio_dev *indio_dev)
                return ret;
        }
 
-       if (dev->platform_data) {
-               struct iio_map *plat_data;
-
-               plat_data = (struct iio_map *)dev->platform_data;
-
-               ret = iio_map_array_register(indio_dev, plat_data);
-               if (ret) {
-                       dev_err(&indio_dev->dev, "iio map err: %d\n", ret);
-                       goto err_regulator_disable;
-               }
+       ret = iio_map_array_register(indio_dev, plat_data);
+       if (ret) {
+               dev_err(&indio_dev->dev, "iio map err: %d\n", ret);
+               goto err_regulator_disable;
        }
 
        ddata->addr_prev = LTC2497_CONFIG_DEFAULT;