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iio: adc: da9150-gpadc: convert probe to full-device managed

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This change converts the probe of this driver to use device-managed
functions only, which means that the remove hook can be removed.
The remove hook has only 2 calls to iio_device_unregister() and
iio_map_array_unregister(). Both these can now be done via devm register
functions, now that there's also a devm_iio_map_array_register() function.

The platform_set_drvdata() can also be removed now.

This change also removes the error print for when the iio_device_register()
call fails. This isn't required now.

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210903072917.45769-6-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Alexandru Ardelean 2021-09-03 10:29:17 +03:00 committed by Jonathan Cameron
parent 9c22f459cc
commit fb6349effb
1 changed files with 2 additions and 25 deletions
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27
drivers/iio/adc/da9150-gpadc.c
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@ -330,7 +330,6 @@ static int da9150_gpadc_probe(struct platform_device *pdev)
}
gpadc = iio_priv(indio_dev);
platform_set_drvdata(pdev, indio_dev);
gpadc->da9150 = da9150;
gpadc->dev = dev;
mutex_init(&gpadc->lock);
@ -347,7 +346,7 @@ static int da9150_gpadc_probe(struct platform_device *pdev)
return ret;
}
ret = iio_map_array_register(indio_dev, da9150_gpadc_default_maps);
ret = devm_iio_map_array_register(&pdev->dev, indio_dev, da9150_gpadc_default_maps);
if (ret) {
dev_err(dev, "Failed to register IIO maps: %d\n", ret);
return ret;
@ -359,28 +358,7 @@ static int da9150_gpadc_probe(struct platform_device *pdev)
indio_dev->channels = da9150_gpadc_channels;
indio_dev->num_channels = ARRAY_SIZE(da9150_gpadc_channels);
ret = iio_device_register(indio_dev);
if (ret) {
dev_err(dev, "Failed to register IIO device: %d\n", ret);
goto iio_map_unreg;
}
return 0;
iio_map_unreg:
iio_map_array_unregister(indio_dev);
return ret;
}
static int da9150_gpadc_remove(struct platform_device *pdev)
{
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
iio_device_unregister(indio_dev);
iio_map_array_unregister(indio_dev);
return 0;
return devm_iio_device_register(&pdev->dev, indio_dev);
}
static struct platform_driver da9150_gpadc_driver = {
@ -388,7 +366,6 @@ static struct platform_driver da9150_gpadc_driver = {
.name = "da9150-gpadc",
},
.probe = da9150_gpadc_probe,
.remove = da9150_gpadc_remove,
};
module_platform_driver(da9150_gpadc_driver);