sound/soc/codecs/tlv320aic32x4-i2c.c

   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/i2c.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
  21 static int aic32x4_i2c_probe(struct i2c_client *i2c,
  22                              const struct i2c_device_id *id)
  23 {
  24         struct regmap *regmap;
  25         struct regmap_config config;
  26
  27         config = aic32x4_regmap_config;
  28         config.reg_bits = 8;
  29         config.val_bits = 8;
  30
  31         regmap = devm_regmap_init_i2c(i2c, &config);
  32
  33         if (i2c->dev.of_node) {
  34                 const struct of_device_id *oid;
  35
  36                 oid = of_match_node(aic32x4_of_id, i2c->dev.of_node);
  37                 dev_set_drvdata(&i2c->dev, (void *)oid->data);
  38         } else if (id) {
  39                 dev_set_drvdata(&i2c->dev, (void *)id->driver_data);
  40         }
  41
  42         return aic32x4_probe(&i2c->dev, regmap);
  43 }
  44
  45 static int aic32x4_i2c_remove(struct i2c_client *i2c)
  46 {
  47         aic32x4_remove(&i2c->dev);
  48
  49         return 0;
  50 }
  51
  52 static const struct i2c_device_id aic32x4_i2c_id[] = {
  53         { "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
  54         { "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
  55         { "tas2505", (kernel_ulong_t)AIC32X4_TYPE_TAS2505 },
  56         { /* sentinel */ }
  57 };
  58 MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);
  59
  60 static const struct of_device_id aic32x4_of_id[] = {
  61         { .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
  62         { .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
  63         { .compatible = "ti,tas2505", .data = (void *)AIC32X4_TYPE_TAS2505 },
  64         { /* senitel */ }
  65 };
  66 MODULE_DEVICE_TABLE(of, aic32x4_of_id);
  67
  68 static struct i2c_driver aic32x4_i2c_driver = {
  69         .driver = {
  70                 .name = "tlv320aic32x4",
  71                 .of_match_table = aic32x4_of_id,
  72         },
  73         .probe =    aic32x4_i2c_probe,
  74         .remove =   aic32x4_i2c_remove,
  75         .id_table = aic32x4_i2c_id,
  76 };
  77
  78 module_i2c_driver(aic32x4_i2c_driver);
  79
  80 MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver I2C");
  81 MODULE_AUTHOR("Annaliese McDermond <nh6z@nh6z.net>");
  82 MODULE_LICENSE("GPL");