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1// SPDX-License-Identifier: GPL-2.0
2/*
3 * AD7606 Parallel Interface ADC driver
4 *
5 * Copyright 2011 Analog Devices Inc.
6 */
7
8#include <linux/module.h>
9#include <linux/platform_device.h>
10#include <linux/types.h>
11#include <linux/err.h>
12#include <linux/io.h>
13
14#include <linux/iio/iio.h>
15#include "ad7606.h"
16
17static int ad7606_par16_read_block(struct device *dev,
18 int count, void *buf)
19{
20 struct iio_dev *indio_dev = dev_get_drvdata(dev);
21 struct ad7606_state *st = iio_priv(indio_dev);
22
23 insw((unsigned long)st->base_address, buf, count);
24
25 return 0;
26}
27
28static const struct ad7606_bus_ops ad7606_par16_bops = {
29 .read_block = ad7606_par16_read_block,
30};
31
32static int ad7606_par8_read_block(struct device *dev,
33 int count, void *buf)
34{
35 struct iio_dev *indio_dev = dev_get_drvdata(dev);
36 struct ad7606_state *st = iio_priv(indio_dev);
37
38 insb((unsigned long)st->base_address, buf, count * 2);
39
40 return 0;
41}
42
43static const struct ad7606_bus_ops ad7606_par8_bops = {
44 .read_block = ad7606_par8_read_block,
45};
46
47static int ad7606_par_probe(struct platform_device *pdev)
48{
49 const struct platform_device_id *id = platform_get_device_id(pdev);
50 struct resource *res;
51 void __iomem *addr;
52 resource_size_t remap_size;
53 int irq;
54
55 irq = platform_get_irq(pdev, 0);
56 if (irq < 0)
57 return irq;
58
59 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
60 addr = devm_ioremap_resource(&pdev->dev, res);
61 if (IS_ERR(addr))
62 return PTR_ERR(addr);
63
64 remap_size = resource_size(res);
65
66 return ad7606_probe(&pdev->dev, irq, addr,
67 id->name, id->driver_data,
68 remap_size > 1 ? &ad7606_par16_bops :
69 &ad7606_par8_bops);
70}
71
72static const struct platform_device_id ad7606_driver_ids[] = {
73 { .name = "ad7605-4", .driver_data = ID_AD7605_4, },
74 { .name = "ad7606-4", .driver_data = ID_AD7606_4, },
75 { .name = "ad7606-6", .driver_data = ID_AD7606_6, },
76 { .name = "ad7606-8", .driver_data = ID_AD7606_8, },
77 { }
78};
79MODULE_DEVICE_TABLE(platform, ad7606_driver_ids);
80
81static const struct of_device_id ad7606_of_match[] = {
82 { .compatible = "adi,ad7605-4" },
83 { .compatible = "adi,ad7606-4" },
84 { .compatible = "adi,ad7606-6" },
85 { .compatible = "adi,ad7606-8" },
86 { },
87};
88MODULE_DEVICE_TABLE(of, ad7606_of_match);
89
90static struct platform_driver ad7606_driver = {
91 .probe = ad7606_par_probe,
92 .id_table = ad7606_driver_ids,
93 .driver = {
94 .name = "ad7606",
95 .pm = AD7606_PM_OPS,
96 .of_match_table = ad7606_of_match,
97 },
98};
99module_platform_driver(ad7606_driver);
100
101MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
102MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
103MODULE_LICENSE("GPL v2");
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * AD7606 Parallel Interface ADC driver
4 *
5 * Copyright 2011 Analog Devices Inc.
6 */
7
8#include <linux/module.h>
9#include <linux/platform_device.h>
10#include <linux/types.h>
11#include <linux/err.h>
12#include <linux/io.h>
13
14#include <linux/iio/iio.h>
15#include "ad7606.h"
16
17static int ad7606_par16_read_block(struct device *dev,
18 int count, void *buf)
19{
20 struct iio_dev *indio_dev = dev_get_drvdata(dev);
21 struct ad7606_state *st = iio_priv(indio_dev);
22
23 insw((unsigned long)st->base_address, buf, count);
24
25 return 0;
26}
27
28static const struct ad7606_bus_ops ad7606_par16_bops = {
29 .read_block = ad7606_par16_read_block,
30};
31
32static int ad7606_par8_read_block(struct device *dev,
33 int count, void *buf)
34{
35 struct iio_dev *indio_dev = dev_get_drvdata(dev);
36 struct ad7606_state *st = iio_priv(indio_dev);
37
38 insb((unsigned long)st->base_address, buf, count * 2);
39
40 return 0;
41}
42
43static const struct ad7606_bus_ops ad7606_par8_bops = {
44 .read_block = ad7606_par8_read_block,
45};
46
47static int ad7606_par_probe(struct platform_device *pdev)
48{
49 const struct platform_device_id *id = platform_get_device_id(pdev);
50 struct resource *res;
51 void __iomem *addr;
52 resource_size_t remap_size;
53 int irq;
54
55 irq = platform_get_irq(pdev, 0);
56 if (irq < 0)
57 return irq;
58
59 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
60 addr = devm_ioremap_resource(&pdev->dev, res);
61 if (IS_ERR(addr))
62 return PTR_ERR(addr);
63
64 remap_size = resource_size(res);
65
66 return ad7606_probe(&pdev->dev, irq, addr,
67 id->name, id->driver_data,
68 remap_size > 1 ? &ad7606_par16_bops :
69 &ad7606_par8_bops);
70}
71
72static const struct platform_device_id ad7606_driver_ids[] = {
73 { .name = "ad7605-4", .driver_data = ID_AD7605_4, },
74 { .name = "ad7606-4", .driver_data = ID_AD7606_4, },
75 { .name = "ad7606-6", .driver_data = ID_AD7606_6, },
76 { .name = "ad7606-8", .driver_data = ID_AD7606_8, },
77 { }
78};
79MODULE_DEVICE_TABLE(platform, ad7606_driver_ids);
80
81static const struct of_device_id ad7606_of_match[] = {
82 { .compatible = "adi,ad7605-4" },
83 { .compatible = "adi,ad7606-4" },
84 { .compatible = "adi,ad7606-6" },
85 { .compatible = "adi,ad7606-8" },
86 { },
87};
88MODULE_DEVICE_TABLE(of, ad7606_of_match);
89
90static struct platform_driver ad7606_driver = {
91 .probe = ad7606_par_probe,
92 .id_table = ad7606_driver_ids,
93 .driver = {
94 .name = "ad7606",
95 .pm = AD7606_PM_OPS,
96 .of_match_table = ad7606_of_match,
97 },
98};
99module_platform_driver(ad7606_driver);
100
101MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
102MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
103MODULE_LICENSE("GPL v2");