1*9dc15f81SMark Brown // SPDX-License-Identifier: GPL-2.0-only
2*9dc15f81SMark Brown /*
3*9dc15f81SMark Brown * wm8731.c -- WM8731 ALSA SoC Audio driver
4*9dc15f81SMark Brown *
5*9dc15f81SMark Brown * Copyright 2005 Openedhand Ltd.
6*9dc15f81SMark Brown * Copyright 2006-12 Wolfson Microelectronics, plc
7*9dc15f81SMark Brown *
8*9dc15f81SMark Brown * Author: Richard Purdie <richard@openedhand.com>
9*9dc15f81SMark Brown *
10*9dc15f81SMark Brown * Based on wm8753.c by Liam Girdwood
11*9dc15f81SMark Brown */
12*9dc15f81SMark Brown
13*9dc15f81SMark Brown #include <linux/spi/spi.h>
14*9dc15f81SMark Brown #include <linux/module.h>
15*9dc15f81SMark Brown #include <linux/of_device.h>
16*9dc15f81SMark Brown
17*9dc15f81SMark Brown #include "wm8731.h"
18*9dc15f81SMark Brown
19*9dc15f81SMark Brown static const struct of_device_id wm8731_of_match[] = {
20*9dc15f81SMark Brown { .compatible = "wlf,wm8731", },
21*9dc15f81SMark Brown { }
22*9dc15f81SMark Brown };
23*9dc15f81SMark Brown MODULE_DEVICE_TABLE(of, wm8731_of_match);
24*9dc15f81SMark Brown
wm8731_spi_probe(struct spi_device * spi)25*9dc15f81SMark Brown static int wm8731_spi_probe(struct spi_device *spi)
26*9dc15f81SMark Brown {
27*9dc15f81SMark Brown struct wm8731_priv *wm8731;
28*9dc15f81SMark Brown int ret;
29*9dc15f81SMark Brown
30*9dc15f81SMark Brown wm8731 = devm_kzalloc(&spi->dev, sizeof(*wm8731), GFP_KERNEL);
31*9dc15f81SMark Brown if (wm8731 == NULL)
32*9dc15f81SMark Brown return -ENOMEM;
33*9dc15f81SMark Brown
34*9dc15f81SMark Brown spi_set_drvdata(spi, wm8731);
35*9dc15f81SMark Brown
36*9dc15f81SMark Brown wm8731->regmap = devm_regmap_init_spi(spi, &wm8731_regmap);
37*9dc15f81SMark Brown if (IS_ERR(wm8731->regmap)) {
38*9dc15f81SMark Brown ret = PTR_ERR(wm8731->regmap);
39*9dc15f81SMark Brown dev_err(&spi->dev, "Failed to allocate register map: %d\n",
40*9dc15f81SMark Brown ret);
41*9dc15f81SMark Brown return ret;
42*9dc15f81SMark Brown }
43*9dc15f81SMark Brown
44*9dc15f81SMark Brown return wm8731_init(&spi->dev, wm8731);
45*9dc15f81SMark Brown }
46*9dc15f81SMark Brown
47*9dc15f81SMark Brown static struct spi_driver wm8731_spi_driver = {
48*9dc15f81SMark Brown .driver = {
49*9dc15f81SMark Brown .name = "wm8731",
50*9dc15f81SMark Brown .of_match_table = wm8731_of_match,
51*9dc15f81SMark Brown },
52*9dc15f81SMark Brown .probe = wm8731_spi_probe,
53*9dc15f81SMark Brown };
54*9dc15f81SMark Brown
55*9dc15f81SMark Brown module_spi_driver(wm8731_spi_driver);
56*9dc15f81SMark Brown
57*9dc15f81SMark Brown MODULE_DESCRIPTION("ASoC WM8731 driver - SPI");
58*9dc15f81SMark Brown MODULE_AUTHOR("Richard Purdie");
59*9dc15f81SMark Brown MODULE_LICENSE("GPL");
60