1 /* SPDX-License-Identifier: GPL-2.0
2 *
3 * Copyright 2011-2019 NW Digital Radio
4 *
5 * Author: Annaliese McDermond <nh6z@nh6z.net>
6 *
7 * Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
8 *
9 */
10
11 #include <linux/spi/spi.h>
12 #include <linux/module.h>
13 #include <linux/of.h>
14 #include <linux/regmap.h>
15 #include <sound/soc.h>
16
17 #include "tlv320aic32x4.h"
18
19 static const struct of_device_id aic32x4_of_id[];
20
aic32x4_spi_probe(struct spi_device * spi)21 static int aic32x4_spi_probe(struct spi_device *spi)
22 {
23 struct regmap *regmap;
24 struct regmap_config config;
25
26 config = aic32x4_regmap_config;
27 config.reg_bits = 7;
28 config.pad_bits = 1;
29 config.val_bits = 8;
30 config.read_flag_mask = 0x01;
31
32 regmap = devm_regmap_init_spi(spi, &config);
33
34 if (spi->dev.of_node) {
35 const struct of_device_id *oid;
36
37 oid = of_match_node(aic32x4_of_id, spi->dev.of_node);
38 dev_set_drvdata(&spi->dev, (void *)oid->data);
39 } else {
40 const struct spi_device_id *id_entry;
41
42 id_entry = spi_get_device_id(spi);
43 dev_set_drvdata(&spi->dev, (void *)id_entry->driver_data);
44 }
45
46 return aic32x4_probe(&spi->dev, regmap);
47 }
48
aic32x4_spi_remove(struct spi_device * spi)49 static int aic32x4_spi_remove(struct spi_device *spi)
50 {
51 aic32x4_remove(&spi->dev);
52
53 return 0;
54 }
55
56 static const struct spi_device_id aic32x4_spi_id[] = {
57 { "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
58 { "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
59 { /* sentinel */ }
60 };
61 MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
62
63 static const struct of_device_id aic32x4_of_id[] = {
64 { .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
65 { .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
66 { /* senitel */ }
67 };
68 MODULE_DEVICE_TABLE(of, aic32x4_of_id);
69
70 static struct spi_driver aic32x4_spi_driver = {
71 .driver = {
72 .name = "tlv320aic32x4",
73 .owner = THIS_MODULE,
74 .of_match_table = aic32x4_of_id,
75 },
76 .probe = aic32x4_spi_probe,
77 .remove = aic32x4_spi_remove,
78 .id_table = aic32x4_spi_id,
79 };
80
81 module_spi_driver(aic32x4_spi_driver);
82
83 MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
84 MODULE_AUTHOR("Annaliese McDermond <nh6z@nh6z.net>");
85 MODULE_LICENSE("GPL");
86