sound/soc/codecs/pcm512x-i2c.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Driver for the PCM512x CODECs
   4  *
   5  * Author:      Mark Brown <broonie@kernel.org>
   6  *              Copyright 2014 Linaro Ltd
   7  */
   8
   9 #include <linux/init.h>
  10 #include <linux/module.h>
  11 #include <linux/i2c.h>
  12 #include <linux/acpi.h>
  13
  14 #include "pcm512x.h"
  15
  16 static int pcm512x_i2c_probe(struct i2c_client *i2c,
  17                              const struct i2c_device_id *id)
  18 {
  19         struct regmap *regmap;
  20         struct regmap_config config = pcm512x_regmap;
  21
  22         /* msb needs to be set to enable auto-increment of addresses */
  23         config.read_flag_mask = 0x80;
  24         config.write_flag_mask = 0x80;
  25
  26         regmap = devm_regmap_init_i2c(i2c, &config);
  27         if (IS_ERR(regmap))
  28                 return PTR_ERR(regmap);
  29
  30         return pcm512x_probe(&i2c->dev, regmap);
  31 }
  32
  33 static int pcm512x_i2c_remove(struct i2c_client *i2c)
  34 {
  35         pcm512x_remove(&i2c->dev);
  36         return 0;
  37 }
  38
  39 static const struct i2c_device_id pcm512x_i2c_id[] = {
  40         { "pcm5121", },
  41         { "pcm5122", },
  42         { "pcm5141", },
  43         { "pcm5142", },
  44         { }
  45 };
  46 MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id);
  47
  48 #if defined(CONFIG_OF)
  49 static const struct of_device_id pcm512x_of_match[] = {
  50         { .compatible = "ti,pcm5121", },
  51         { .compatible = "ti,pcm5122", },
  52         { .compatible = "ti,pcm5141", },
  53         { .compatible = "ti,pcm5142", },
  54         { }
  55 };
  56 MODULE_DEVICE_TABLE(of, pcm512x_of_match);
  57 #endif
  58
  59 #ifdef CONFIG_ACPI
  60 static const struct acpi_device_id pcm512x_acpi_match[] = {
  61         { "104C5121", 0 },
  62         { "104C5122", 0 },
  63         { "104C5141", 0 },
  64         { "104C5142", 0 },
  65         { },
  66 };
  67 MODULE_DEVICE_TABLE(acpi, pcm512x_acpi_match);
  68 #endif
  69
  70 static struct i2c_driver pcm512x_i2c_driver = {
  71         .probe          = pcm512x_i2c_probe,
  72         .remove         = pcm512x_i2c_remove,
  73         .id_table       = pcm512x_i2c_id,
  74         .driver         = {
  75                 .name   = "pcm512x",
  76                 .of_match_table = of_match_ptr(pcm512x_of_match),
  77                 .acpi_match_table = ACPI_PTR(pcm512x_acpi_match),
  78                 .pm     = &pcm512x_pm_ops,
  79         },
  80 };
  81
  82 module_i2c_driver(pcm512x_i2c_driver);
  83
  84 MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C");
  85 MODULE_AUTHOR("Mark Brown <broonie@kernel.org>");
  86 MODULE_LICENSE("GPL v2");