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iio: adc: max1027: Use device-managed APIs

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Use device-managed APIs to simplify the code.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Chuhong Yuan 2019-08-11 20:51:46 +08:00 committed by Jonathan Cameron
parent b311da85f7
commit 2715a28105
1 changed files with 7 additions and 31 deletions
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38
drivers/iio/adc/max1027.c
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@ -427,8 +427,9 @@ static int max1027_probe(struct spi_device *spi)
return -ENOMEM;
}
ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
&max1027_trigger_handler, NULL);
ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev,
&iio_pollfunc_store_time,
&max1027_trigger_handler, NULL);
if (ret < 0) {
dev_err(&indio_dev->dev, "Failed to setup buffer\n");
return ret;
@ -439,7 +440,7 @@ static int max1027_probe(struct spi_device *spi)
if (st->trig == NULL) {
ret = -ENOMEM;
dev_err(&indio_dev->dev, "Failed to allocate iio trigger\n");
goto fail_trigger_alloc;
return ret;
}
st->trig->ops = &max1027_trigger_ops;
@ -454,7 +455,7 @@ static int max1027_probe(struct spi_device *spi)
spi->dev.driver->name, st->trig);
if (ret < 0) {
dev_err(&indio_dev->dev, "Failed to allocate IRQ.\n");
goto fail_dev_register;
return ret;
}
/* Disable averaging */
@ -462,34 +463,10 @@ static int max1027_probe(struct spi_device *spi)
ret = spi_write(st->spi, &st->reg, 1);
if (ret < 0) {
dev_err(&indio_dev->dev, "Failed to configure averaging register\n");
goto fail_dev_register;
return ret;
}
ret = iio_device_register(indio_dev);
if (ret < 0) {
dev_err(&indio_dev->dev, "Failed to register iio device\n");
goto fail_dev_register;
}
return 0;
fail_dev_register:
fail_trigger_alloc:
iio_triggered_buffer_cleanup(indio_dev);
return ret;
}
static int max1027_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
pr_debug("%s: remove(spi = 0x%p)\n", __func__, spi);
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
return 0;
return devm_iio_device_register(&spi->dev, indio_dev);
}
static struct spi_driver max1027_driver = {
@ -498,7 +475,6 @@ static struct spi_driver max1027_driver = {
.of_match_table = of_match_ptr(max1027_adc_dt_ids),
},
.probe = max1027_probe,
.remove = max1027_remove,
.id_table = max1027_id,
};
module_spi_driver(max1027_driver);