1 /* SPDX-License-Identifier: GPL-2.0
2  *
3  * ALSA SoC TLV320AIC3x codec driver SPI interface
4  *
5  * Author:      Arun KS, <arunks@mistralsolutions.com>
6  * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
7  *
8  * Based on sound/soc/codecs/wm8731.c by Richard Purdie
9  *
10  */
11 
12 #include <linux/spi/spi.h>
13 #include <linux/module.h>
14 #include <linux/of.h>
15 #include <linux/regmap.h>
16 #include <sound/soc.h>
17 
18 #include "tlv320aic3x.h"
19 
aic3x_spi_probe(struct spi_device * spi)20 static int aic3x_spi_probe(struct spi_device *spi)
21 {
22 	struct regmap *regmap;
23 	struct regmap_config config;
24 	const struct spi_device_id *id = spi_get_device_id(spi);
25 
26 	config = aic3x_regmap;
27 	config.reg_bits = 7;
28 	config.pad_bits = 1;
29 	config.val_bits = 8;
30 	config.read_flag_mask = 0x01;
31 
32 	dev_dbg(&spi->dev, "probing tlv320aic3x spi device\n");
33 
34 	regmap = devm_regmap_init_spi(spi, &config);
35 	return aic3x_probe(&spi->dev, regmap, id->driver_data);
36 }
37 
aic3x_spi_remove(struct spi_device * spi)38 static int aic3x_spi_remove(struct spi_device *spi)
39 {
40 	aic3x_remove(&spi->dev);
41 
42 	return 0;
43 }
44 
45 static const struct spi_device_id aic3x_spi_id[] = {
46 	{ "tlv320aic3x", AIC3X_MODEL_3X },
47 	{ "tlv320aic33", AIC3X_MODEL_33 },
48 	{ "tlv320aic3007", AIC3X_MODEL_3007 },
49 	{ "tlv320aic3104", AIC3X_MODEL_3104 },
50 	{ "tlv320aic3106", AIC3X_MODEL_3106 },
51 	{ }
52 };
53 MODULE_DEVICE_TABLE(spi, aic3x_spi_id);
54 
55 static const struct of_device_id aic3x_of_id[] = {
56 	{ .compatible = "ti,tlv320aic3x", },
57 	{ .compatible = "ti,tlv320aic33" },
58 	{ .compatible = "ti,tlv320aic3007" },
59 	{ .compatible = "ti,tlv320aic3104" },
60 	{ .compatible = "ti,tlv320aic3106" },
61 	{},
62 };
63 MODULE_DEVICE_TABLE(of, aic3x_of_id);
64 
65 static struct spi_driver aic3x_spi_driver = {
66 	.driver = {
67 		.name = "tlv320aic3x",
68 		.owner = THIS_MODULE,
69 		.of_match_table = aic3x_of_id,
70 	},
71 	.probe = aic3x_spi_probe,
72 	.remove = aic3x_spi_remove,
73 	.id_table = aic3x_spi_id,
74 };
75 
76 module_spi_driver(aic3x_spi_driver);
77 
78 MODULE_DESCRIPTION("ASoC TLV320AIC3x codec driver SPI");
79 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
80 MODULE_LICENSE("GPL");
81