Release 4.11 drivers/staging/iio/adc/ad7606_par.c

/*
 * AD7606 Parallel Interface ADC driver
 *
 * Copyright 2011 Analog Devices Inc.
 *
 * Licensed under the GPL-2.
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/types.h>
#include <linux/err.h>
#include <linux/io.h>

#include <linux/iio/iio.h>
#include "ad7606.h"



static int ad7606_par16_read_block(struct device *dev,
				   int count, void *buf)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
	struct ad7606_state *st = iio_priv(indio_dev);

	insw((unsigned long)st->base_address, buf, count);

	return 0;
}

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static const struct ad7606_bus_ops ad7606_par16_bops = {
	.read_block	= ad7606_par16_read_block,
};



static int ad7606_par8_read_block(struct device *dev,
				  int count, void *buf)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
	struct ad7606_state *st = iio_priv(indio_dev);

	insb((unsigned long)st->base_address, buf, count * 2);

	return 0;
}

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static const struct ad7606_bus_ops ad7606_par8_bops = {
	.read_block	= ad7606_par8_read_block,
};



static int ad7606_par_probe(struct platform_device *pdev)
{
	const struct platform_device_id *id = platform_get_device_id(pdev);
	struct resource *res;
	void __iomem *addr;
	resource_size_t remap_size;
	int irq;

	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(&pdev->dev, "no irq\n");
		return -ENODEV;
	}

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	addr = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(addr))
		return PTR_ERR(addr);

	remap_size = resource_size(res);

	return ad7606_probe(&pdev->dev, irq, addr,
			    id->name, id->driver_data,
			    remap_size > 1 ? &ad7606_par16_bops :
			    &ad7606_par8_bops);
}

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Himangi Saraogi
16
11.19%
1
25.00%
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143
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4
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static int ad7606_par_remove(struct platform_device *pdev)
{
	return ad7606_remove(&pdev->dev, platform_get_irq(pdev, 0));
}

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Jonathan Cameron
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Lars-Peter Clausen
5
18.52%
1
33.33%
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27
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static const struct platform_device_id ad7606_driver_ids[] = {
	{
		.name		= "ad7606-8",
		.driver_data	= ID_AD7606_8,
        }, {
		.name		= "ad7606-6",
		.driver_data	= ID_AD7606_6,
        }, {
		.name		= "ad7606-4",
		.driver_data	= ID_AD7606_4,
        },
	{ }
};

MODULE_DEVICE_TABLE(platform, ad7606_driver_ids);


static struct platform_driver ad7606_driver = {
	.probe = ad7606_par_probe,
	.remove	= ad7606_par_remove,
	.id_table = ad7606_driver_ids,
	.driver = {
		.name	 = "ad7606",
		.pm	 = AD7606_PM_OPS,
        },
};


module_platform_driver(ad7606_driver);

MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
MODULE_LICENSE("GPL v2");
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4.97%
4
36.36%
Himangi Saraogi
16
3.46%
1
9.09%
Jonathan Cameron
8
1.73%
2
18.18%
Krzysztof Kozlowski
1
0.22%
1
9.09%
Total
463
100.00%
11
100.00%
Directory: drivers/staging/iio/adc

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