Commit 2715a281 authored by Chuhong Yuan's avatar Chuhong Yuan Committed by Jonathan Cameron
Browse files

iio: adc: max1027: Use device-managed APIs 



Use device-managed APIs to simplify the code.

Signed-off-by: default avatarChuhong Yuan <hslester96@gmail.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent b311da85

drivers/iio/adc/max1027.c

+7 −31
Original line number Diff line number Diff line
@@ -427,7 +427,8 @@ static int max1027_probe(struct spi_device *spi) 
		return -ENOMEM;

	}



	ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,

	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");
@@ -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;

	}



	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);