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 {
  18         struct regmap *regmap;
  19         struct regmap_config config = pcm512x_regmap;
  20
  21         /* msb needs to be set to enable auto-increment of addresses */
  22         config.read_flag_mask = 0x80;
  23         config.write_flag_mask = 0x80;
  24
  25         regmap = devm_regmap_init_i2c(i2c, &config);
  26         if (IS_ERR(regmap))
  27                 return PTR_ERR(regmap);
  28
  29         return pcm512x_probe(&i2c->dev, regmap);
  30 }
  31
  32 static void pcm512x_i2c_remove(struct i2c_client *i2c)
  33 {
  34         pcm512x_remove(&i2c->dev);
  35 }
  36
  37 static const struct i2c_device_id pcm512x_i2c_id[] = {
  38         { "pcm5121", },
  39         { "pcm5122", },
  40         { "pcm5141", },
  41         { "pcm5142", },
  42         { }
  43 };
  44 MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id);
  45
  46 #if defined(CONFIG_OF)
  47 static const struct of_device_id pcm512x_of_match[] = {
  48         { .compatible = "ti,pcm5121", },
  49         { .compatible = "ti,pcm5122", },
  50         { .compatible = "ti,pcm5141", },
  51         { .compatible = "ti,pcm5142", },
  52         { }
  53 };
  54 MODULE_DEVICE_TABLE(of, pcm512x_of_match);
  55 #endif
  56
  57 #ifdef CONFIG_ACPI
  58 static const struct acpi_device_id pcm512x_acpi_match[] = {
  59         { "104C5121", 0 },
  60         { "104C5122", 0 },
  61         { "104C5141", 0 },
  62         { "104C5142", 0 },
  63         { },
  64 };
  65 MODULE_DEVICE_TABLE(acpi, pcm512x_acpi_match);
  66 #endif
  67
  68 static struct i2c_driver pcm512x_i2c_driver = {
  69         .probe_new      = pcm512x_i2c_probe,
  70         .remove         = pcm512x_i2c_remove,
  71         .id_table       = pcm512x_i2c_id,
  72         .driver         = {
  73                 .name   = "pcm512x",
  74                 .of_match_table = of_match_ptr(pcm512x_of_match),
  75                 .acpi_match_table = ACPI_PTR(pcm512x_acpi_match),
  76                 .pm     = &pcm512x_pm_ops,
  77         },
  78 };
  79
  80 module_i2c_driver(pcm512x_i2c_driver);
  81
  82 MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C");
  83 MODULE_AUTHOR("Mark Brown <broonie@kernel.org>");
  84 MODULE_LICENSE("GPL v2");