1 // SPDX-License-Identifier: GPL-2.0-only
3 * Driver for ADAU1361/ADAU1461/ADAU1761/ADAU1961 codec
5 * Copyright 2014 Analog Devices Inc.
6 * Author: Lars-Peter Clausen <lars@metafoo.de>
9 #include <linux/mod_devicetable.h>
10 #include <linux/module.h>
11 #include <linux/regmap.h>
12 #include <linux/spi/spi.h>
13 #include <sound/soc.h>
17 static void adau1761_spi_switch_mode(struct device *dev)
19 struct spi_device *spi = to_spi_device(dev);
22 * To get the device into SPI mode CLATCH has to be pulled low three
23 * times. Do this by issuing three dummy reads.
30 static int adau1761_spi_probe(struct spi_device *spi)
32 const struct spi_device_id *id = spi_get_device_id(spi);
33 struct regmap_config config;
38 config = adau1761_regmap_config;
41 config.read_flag_mask = 0x1;
43 return adau1761_probe(&spi->dev,
44 devm_regmap_init_spi(spi, &config),
45 id->driver_data, adau1761_spi_switch_mode);
48 static int adau1761_spi_remove(struct spi_device *spi)
50 adau17x1_remove(&spi->dev);
54 static const struct spi_device_id adau1761_spi_id[] = {
55 { "adau1361", ADAU1361 },
56 { "adau1461", ADAU1761 },
57 { "adau1761", ADAU1761 },
58 { "adau1961", ADAU1361 },
61 MODULE_DEVICE_TABLE(spi, adau1761_spi_id);
63 #if defined(CONFIG_OF)
64 static const struct of_device_id adau1761_spi_dt_ids[] = {
65 { .compatible = "adi,adau1361", },
66 { .compatible = "adi,adau1461", },
67 { .compatible = "adi,adau1761", },
68 { .compatible = "adi,adau1961", },
71 MODULE_DEVICE_TABLE(of, adau1761_spi_dt_ids);
74 static struct spi_driver adau1761_spi_driver = {
77 .of_match_table = of_match_ptr(adau1761_spi_dt_ids),
79 .probe = adau1761_spi_probe,
80 .remove = adau1761_spi_remove,
81 .id_table = adau1761_spi_id,
83 module_spi_driver(adau1761_spi_driver);
85 MODULE_DESCRIPTION("ASoC ADAU1361/ADAU1461/ADAU1761/ADAU1961 CODEC SPI driver");
86 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
87 MODULE_LICENSE("GPL");