cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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wm8350-i2c.c (1549B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * wm8350-i2c.c  --  Generic I2C driver for Wolfson WM8350 PMIC
      4 *
      5 * Copyright 2007, 2008 Wolfson Microelectronics PLC.
      6 *
      7 * Author: Liam Girdwood
      8 *         linux@wolfsonmicro.com
      9 */
     10
     11#include <linux/err.h>
     12#include <linux/init.h>
     13#include <linux/i2c.h>
     14#include <linux/platform_device.h>
     15#include <linux/mfd/wm8350/core.h>
     16#include <linux/regmap.h>
     17#include <linux/slab.h>
     18
     19static int wm8350_i2c_probe(struct i2c_client *i2c,
     20			    const struct i2c_device_id *id)
     21{
     22	struct wm8350 *wm8350;
     23	struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev);
     24	int ret = 0;
     25
     26	wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL);
     27	if (wm8350 == NULL)
     28		return -ENOMEM;
     29
     30	wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap);
     31	if (IS_ERR(wm8350->regmap)) {
     32		ret = PTR_ERR(wm8350->regmap);
     33		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
     34			ret);
     35		return ret;
     36	}
     37
     38	i2c_set_clientdata(i2c, wm8350);
     39	wm8350->dev = &i2c->dev;
     40
     41	return wm8350_device_init(wm8350, i2c->irq, pdata);
     42}
     43
     44static const struct i2c_device_id wm8350_i2c_id[] = {
     45	{ "wm8350", 0 },
     46	{ "wm8351", 0 },
     47	{ "wm8352", 0 },
     48	{ }
     49};
     50
     51static struct i2c_driver wm8350_i2c_driver = {
     52	.driver = {
     53		   .name = "wm8350",
     54		   .suppress_bind_attrs = true,
     55	},
     56	.probe = wm8350_i2c_probe,
     57	.id_table = wm8350_i2c_id,
     58};
     59
     60static int __init wm8350_i2c_init(void)
     61{
     62	return i2c_add_driver(&wm8350_i2c_driver);
     63}
     64/* init early so consumer devices can complete system boot */
     65subsys_initcall(wm8350_i2c_init);