cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

tps65912-i2c.c (2290B)

      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	tps65912_device_exit(tps);
     59
     60	return 0;
     61}
     62
     63static const struct i2c_device_id tps65912_i2c_id_table[] = {
     64	{ "tps65912", 0 },
     65	{ /* sentinel */ }
     66};
     67MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);
     68
     69static struct i2c_driver tps65912_i2c_driver = {
     70	.driver		= {
     71		.name	= "tps65912",
     72		.of_match_table = tps65912_i2c_of_match_table,
     73	},
     74	.probe		= tps65912_i2c_probe,
     75	.remove		= tps65912_i2c_remove,
     76	.id_table       = tps65912_i2c_id_table,
     77};
     78module_i2c_driver(tps65912_i2c_driver);
     79
     80MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
     81MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");
     82MODULE_LICENSE("GPL v2");