drivers/mfd/tps65912-i2c.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * I2C access driver for TI TPS65912x PMICs
   4  *
   5  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
   6  *      Andrew F. Davis <afd@ti.com>
   7  *
   8  * Based on the TPS65218 driver and the previous TPS65912 driver by
   9  * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
  10  */
  11
  12 #include <linux/i2c.h>
  13 #include <linux/module.h>
  14 #include <linux/regmap.h>
  15
  16 #include <linux/mfd/tps65912.h>
  17
  18 static const struct of_device_id tps65912_i2c_of_match_table[] = {
  19         { .compatible = "ti,tps65912", },
  20         { /* sentinel */ }
  21 };
  22 MODULE_DEVICE_TABLE(of, tps65912_i2c_of_match_table);
  23
  24 static int tps65912_i2c_probe(struct i2c_client *client,
  25                               const struct i2c_device_id *ids)
  26 {
  27         struct tps65912 *tps;
  28
  29         tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
  30         if (!tps)
  31                 return -ENOMEM;
  32
  33         i2c_set_clientdata(client, tps);
  34         tps->dev = &client->dev;
  35         tps->irq = client->irq;
  36
  37         tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config);
  38         if (IS_ERR(tps->regmap)) {
  39                 dev_err(tps->dev, "Failed to initialize register map\n");
  40                 return PTR_ERR(tps->regmap);
  41         }
  42
  43         return tps65912_device_init(tps);
  44 }
  45
  46 static void tps65912_i2c_remove(struct i2c_client *client)
  47 {
  48         struct tps65912 *tps = i2c_get_clientdata(client);
  49
  50         tps65912_device_exit(tps);
  51 }
  52
  53 static const struct i2c_device_id tps65912_i2c_id_table[] = {
  54         { "tps65912", 0 },
  55         { /* sentinel */ }
  56 };
  57 MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);
  58
  59 static struct i2c_driver tps65912_i2c_driver = {
  60         .driver         = {
  61                 .name   = "tps65912",
  62                 .of_match_table = tps65912_i2c_of_match_table,
  63         },
  64         .probe          = tps65912_i2c_probe,
  65         .remove         = tps65912_i2c_remove,
  66         .id_table       = tps65912_i2c_id_table,
  67 };
  68 module_i2c_driver(tps65912_i2c_driver);
  69
  70 MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
  71 MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");
  72 MODULE_LICENSE("GPL v2");