With the devm_ad_sd_setup_buffer_and_trigger() helper, it's a bit easier
now to convert the probe of the AD7780 driver to use device-managed
functions.
Only the regulator disable requires a devm_add_action_or_reset() callback.
This change does that, cleaning up the driver a bit.
Signed-off-by: Alexandru Ardelean <aardelean@xxxxxxxxxxx>
---
drivers/iio/adc/ad7780.c | 38 ++++++++++----------------------------
1 file changed, 10 insertions(+), 28 deletions(-)
diff --git a/drivers/iio/adc/ad7780.c b/drivers/iio/adc/ad7780.c
index 42e7e8e595d1..42bb952f4738 100644
--- a/drivers/iio/adc/ad7780.c
+++ b/drivers/iio/adc/ad7780.c
@@ -300,6 +300,11 @@ static int ad7780_init_gpios(struct device *dev, struct ad7780_state *st)
return 0;
}
+static void ad7780_reg_disable(void *reg)
+{
+ regulator_disable(reg);
+}
+
static int ad7780_probe(struct spi_device *spi)
{
struct ad7780_state *st;
@@ -318,8 +323,6 @@ static int ad7780_probe(struct spi_device *spi)
st->chip_info =
&ad7780_chip_info_tbl[spi_get_device_id(spi)->driver_data];
- spi_set_drvdata(spi, indio_dev);
-
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->channels = &st->chip_info->channel;
@@ -340,35 +343,15 @@ static int ad7780_probe(struct spi_device *spi)
return ret;
}
- ret = ad_sd_setup_buffer_and_trigger(indio_dev);
+ ret = devm_add_action_or_reset(&spi->dev, ad7780_reg_disable, st->reg);
if (ret)
- goto error_disable_reg;
+ return ret;
- ret = iio_device_register(indio_dev);
+ ret = devm_ad_sd_setup_buffer_and_trigger(&spi->dev, indio_dev);
if (ret)
- goto error_cleanup_buffer_and_trigger;
-
- return 0;
-
-error_cleanup_buffer_and_trigger:
- ad_sd_cleanup_buffer_and_trigger(indio_dev);
-error_disable_reg:
- regulator_disable(st->reg);
-
- return ret;
-}
-
-static int ad7780_remove(struct spi_device *spi)
-{
- struct iio_dev *indio_dev = spi_get_drvdata(spi);
- struct ad7780_state *st = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
- ad_sd_cleanup_buffer_and_trigger(indio_dev);
-
- regulator_disable(st->reg);
+ return ret;
- return 0;
+ return devm_iio_device_register(&spi->dev, indio_dev);
}
static const struct spi_device_id ad7780_id[] = {
@@ -385,7 +368,6 @@ static struct spi_driver ad7780_driver = {
.name = "ad7780",
},
.probe = ad7780_probe,
- .remove = ad7780_remove,
.id_table = ad7780_id,
};
module_spi_driver(ad7780_driver);
--
2.31.1
