[PATCH 09/10] iio: adc: ti-ads8688: drop ads8688_remove()

David Lechner
2024-06-21T22:12:11Z

By using a few devm_ functions, we can simplify the driver and remove
the ads8688_remove() function.

spi_set_drvdata() is removed since there are no more callers of
spi_get_drvdata().

Also use dev_err_probe() to simplify error return.

Signed-off-by: David Lechner <dlechner@baylibre.com>
---
drivers/iio/adc/ti-ads8688.c | 32 ++++++--------------------------
1 file changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c
index fca3032c59d9..7a79f0cebfbf 100644
--- a/drivers/iio/adc/ti-ads8688.c
+++ b/drivers/iio/adc/ti-ads8688.c
@@ -432,8 +432,6 @@ static int ads8688_probe(struct spi_device *spi)

spi->mode = SPI_MODE_1;

- spi_set_drvdata(spi, indio_dev);
-
st->spi = spi;

indio_dev->name = spi_get_device_id(spi)->name;
@@ -446,30 +444,13 @@ static int ads8688_probe(struct spi_device *spi)

mutex_init(&st->lock);

- ret = iio_triggered_buffer_setup(indio_dev, NULL, ads8688_trigger_handler, NULL);
- if (ret < 0) {
- dev_err(&spi->dev, "iio triggered buffer setup failed\n");
- return ret;
- }
-
- ret = iio_device_register(indio_dev);
- if (ret)
- goto err_buffer_cleanup;
-
- return 0;
-
-err_buffer_cleanup:
- iio_triggered_buffer_cleanup(indio_dev);
-
- return ret;
-}
-
-static void ads8688_remove(struct spi_device *spi)
-{
- struct iio_dev *indio_dev = spi_get_drvdata(spi);
+ ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, NULL,
+ ads8688_trigger_handler, NULL);
+ if (ret < 0)
+ return dev_err_probe(&spi->dev, ret,
+ "iio triggered buffer setup failed\n");

- iio_device_unregister(indio_dev);
- iio_triggered_buffer_cleanup(indio_dev);
+ return devm_iio_device_register(&spi->dev, indio_dev);
}

static const struct spi_device_id ads8688_id[] = {
@@ -492,7 +473,6 @@ static struct spi_driver ads8688_driver = {
.of_match_table = ads8688_of_match,
},
.probe = ads8688_probe,
- .remove = ads8688_remove,
.id_table = ads8688_id,
};
module_spi_driver(ads8688_driver);

--
2.45.2