iio: adc: ti-ads8344: convert probe to device-managed

This change converts the driver to register via devm_iio_device_register().
The regulator disable is moved on a devm_add_action_or_reset() hook.

And the spi_set_drvdata() isn't required anymore.
And finally, the ads8344_remove() can be removed as well.

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210903073707.46892-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ti-ads8344.c b/drivers/iio/adc/ti-ads8344.c
index a345a30..c96d2a9 100644 (file)
--- a/drivers/iio/adc/ti-ads8344.c
+++ b/drivers/iio/adc/ti-ads8344.c
@@ -133,6 +133,11 @@ static const struct iio_info ads8344_info = {
        .read_raw = ads8344_read_raw,
 };
 
+static void ads8344_reg_disable(void *data)
+{
+       regulator_disable(data);
+}
+
 static int ads8344_probe(struct spi_device *spi)
 {
        struct iio_dev *indio_dev;
@@ -161,26 +166,11 @@ static int ads8344_probe(struct spi_device *spi)
        if (ret)
                return ret;
 
-       spi_set_drvdata(spi, indio_dev);
-
-       ret = iio_device_register(indio_dev);
-       if (ret) {
-               regulator_disable(adc->reg);
+       ret = devm_add_action_or_reset(&spi->dev, ads8344_reg_disable, adc->reg);
+       if (ret)
                return ret;
-       }
-
-       return 0;
-}
-
-static int ads8344_remove(struct spi_device *spi)
-{
-       struct iio_dev *indio_dev = spi_get_drvdata(spi);
-       struct ads8344 *adc = iio_priv(indio_dev);
-
-       iio_device_unregister(indio_dev);
-       regulator_disable(adc->reg);
 
-       return 0;
+       return devm_iio_device_register(&spi->dev, indio_dev);
 }
 
 static const struct of_device_id ads8344_of_match[] = {
@@ -195,7 +185,6 @@ static struct spi_driver ads8344_driver = {
                .of_match_table = ads8344_of_match,
        },
        .probe = ads8344_probe,
-       .remove = ads8344_remove,
 };
 module_spi_driver(ads8344_driver);