LXR linux/drivers/mfd/tps65912-i2c.c

   1/*
   2 * I2C access driver for TI TPS65912x PMICs
   3 *
   4 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
   5 *      Andrew F. Davis <afd@ti.com>
   6 *
   7 * This program is free software; you can redistribute it and/or
   8 * modify it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 *
  11 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
  12 * kind, whether expressed or implied; without even the implied warranty
  13 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License version 2 for more details.
  15 *
  16 * Based on the TPS65218 driver and the previous TPS65912 driver by
  17 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
  18 */
  19
  20#include <linux/i2c.h>
  21#include <linux/module.h>
  22#include <linux/regmap.h>
  23
  24#include <linux/mfd/tps65912.h>
  25
  26static const struct of_device_id tps65912_i2c_of_match_table[] = {
  27        { .compatible = "ti,tps65912", },
  28        { /* sentinel */ }
  29};
  30MODULE_DEVICE_TABLE(of, tps65912_i2c_of_match_table);
  31
  32static int tps65912_i2c_probe(struct i2c_client *client,
  33                              const struct i2c_device_id *ids)
  34{
  35        struct tps65912 *tps;
  36
  37        tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
  38        if (!tps)
  39                return -ENOMEM;
  40
  41        i2c_set_clientdata(client, tps);
  42        tps->dev = &client->dev;
  43        tps->irq = client->irq;
  44
  45        tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config);
  46        if (IS_ERR(tps->regmap)) {
  47                dev_err(tps->dev, "Failed to initialize register map\n");
  48                return PTR_ERR(tps->regmap);
  49        }
  50
  51        return tps65912_device_init(tps);
  52}
  53
  54static int tps65912_i2c_remove(struct i2c_client *client)
  55{
  56        struct tps65912 *tps = i2c_get_clientdata(client);
  57
  58        return tps65912_device_exit(tps);
  59}
  60
  61static const struct i2c_device_id tps65912_i2c_id_table[] = {
  62        { "tps65912", 0 },
  63        { /* sentinel */ }
  64};
  65MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);
  66
  67static struct i2c_driver tps65912_i2c_driver = {
  68        .driver         = {
  69                .name   = "tps65912",
  70                .of_match_table = tps65912_i2c_of_match_table,
  71        },
  72        .probe          = tps65912_i2c_probe,
  73        .remove         = tps65912_i2c_remove,
  74        .id_table       = tps65912_i2c_id_table,
  75};
  76module_i2c_driver(tps65912_i2c_driver);
  77
  78MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
  79MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");
  80MODULE_LICENSE("GPL v2");
  81