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 static const struct i2c_device_id aic32x4_i2c_id[];
  21
  22 static int aic32x4_i2c_probe(struct i2c_client *i2c)
  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 {
  39                 const struct i2c_device_id *id;
  40
  41                 id = i2c_match_id(aic32x4_i2c_id, i2c);
  42                 dev_set_drvdata(&i2c->dev, (void *)id->driver_data);
  43         }
  44
  45         return aic32x4_probe(&i2c->dev, regmap);
  46 }
  47
  48 static void aic32x4_i2c_remove(struct i2c_client *i2c)
  49 {
  50         aic32x4_remove(&i2c->dev);
  51 }
  52
  53 static const struct i2c_device_id aic32x4_i2c_id[] = {
  54         { "tlv320aic32x4", (kernel_ulong_t)AIC32X4_TYPE_AIC32X4 },
  55         { "tlv320aic32x6", (kernel_ulong_t)AIC32X4_TYPE_AIC32X6 },
  56         { "tas2505", (kernel_ulong_t)AIC32X4_TYPE_TAS2505 },
  57         { /* sentinel */ }
  58 };
  59 MODULE_DEVICE_TABLE(i2c, aic32x4_i2c_id);
  60
  61 static const struct of_device_id aic32x4_of_id[] = {
  62         { .compatible = "ti,tlv320aic32x4", .data = (void *)AIC32X4_TYPE_AIC32X4 },
  63         { .compatible = "ti,tlv320aic32x6", .data = (void *)AIC32X4_TYPE_AIC32X6 },
  64         { .compatible = "ti,tas2505", .data = (void *)AIC32X4_TYPE_TAS2505 },
  65         { /* senitel */ }
  66 };
  67 MODULE_DEVICE_TABLE(of, aic32x4_of_id);
  68
  69 static struct i2c_driver aic32x4_i2c_driver = {
  70         .driver = {
  71                 .name = "tlv320aic32x4",
  72                 .of_match_table = aic32x4_of_id,
  73         },
  74         .probe_new = aic32x4_i2c_probe,
  75         .remove =   aic32x4_i2c_remove,
  76         .id_table = aic32x4_i2c_id,
  77 };
  78
  79 module_i2c_driver(aic32x4_i2c_driver);
  80
  81 MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver I2C");
  82 MODULE_AUTHOR("Annaliese McDermond <nh6z@nh6z.net>");
  83 MODULE_LICENSE("GPL");