^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * AD7606 Parallel Interface ADC driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2011 Analog Devices Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/iio/iio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include "ad7606.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) static int ad7606_par16_read_block(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) int count, void *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) struct iio_dev *indio_dev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) struct ad7606_state *st = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) insw((unsigned long)st->base_address, buf, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static const struct ad7606_bus_ops ad7606_par16_bops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) .read_block = ad7606_par16_read_block,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) static int ad7606_par8_read_block(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) int count, void *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) struct iio_dev *indio_dev = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) struct ad7606_state *st = iio_priv(indio_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) insb((unsigned long)st->base_address, buf, count * 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) static const struct ad7606_bus_ops ad7606_par8_bops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .read_block = ad7606_par8_read_block,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) static int ad7606_par_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) const struct platform_device_id *id = platform_get_device_id(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct resource *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) void __iomem *addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) resource_size_t remap_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) irq = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (irq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) return irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) addr = devm_ioremap_resource(&pdev->dev, res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (IS_ERR(addr))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return PTR_ERR(addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) remap_size = resource_size(res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) return ad7606_probe(&pdev->dev, irq, addr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) id->name, id->driver_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) remap_size > 1 ? &ad7606_par16_bops :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) &ad7606_par8_bops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) static const struct platform_device_id ad7606_driver_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) { .name = "ad7605-4", .driver_data = ID_AD7605_4, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) { .name = "ad7606-4", .driver_data = ID_AD7606_4, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) { .name = "ad7606-6", .driver_data = ID_AD7606_6, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) { .name = "ad7606-8", .driver_data = ID_AD7606_8, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) MODULE_DEVICE_TABLE(platform, ad7606_driver_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) static const struct of_device_id ad7606_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) { .compatible = "adi,ad7605-4" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) { .compatible = "adi,ad7606-4" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) { .compatible = "adi,ad7606-6" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) { .compatible = "adi,ad7606-8" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) MODULE_DEVICE_TABLE(of, ad7606_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) static struct platform_driver ad7606_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .probe = ad7606_par_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .id_table = ad7606_driver_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .name = "ad7606",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .pm = AD7606_PM_OPS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) .of_match_table = ad7606_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) module_platform_driver(ad7606_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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