iio: dac: max5821: Convert to i2c's .probe_new()

.probe_new() doesn't get the i2c_device_id * parameter, so determine
that explicitly in the probe function.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221118224540.619276-91-uwe@kleine-koenig.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/dac/max5821.c

@@ -300,9 +300,9 @@ static void max5821_regulator_disable(void *reg)
 	regulator_disable(reg);
 }
 
-static int max5821_probe(struct i2c_client *client,
-			const struct i2c_device_id *id)
+static int max5821_probe(struct i2c_client *client)
 {
+	const struct i2c_device_id *id = i2c_client_get_device_id(client);
 	struct max5821_data *data;
 	struct iio_dev *indio_dev;
 	u32 tmp;
@@ -377,7 +377,7 @@ static struct i2c_driver max5821_driver = {
 		.of_match_table = max5821_of_match,
 		.pm     = pm_sleep_ptr(&max5821_pm_ops),
 	},
-	.probe		= max5821_probe,
+	.probe_new	= max5821_probe,
 	.id_table	= max5821_id,
 };
 module_i2c_driver(max5821_driver);