// SPDX-License-Identifier: GPL-2.0-or-later /* * wm8350-i2c.c -- Generic I2C driver for Wolfson WM8350 PMIC * * Copyright 2007, 2008 Wolfson Microelectronics PLC. * * Author: Liam Girdwood * linux@wolfsonmicro.com */ #include <linux/err.h> #include <linux/init.h> #include <linux/i2c.h> #include <linux/platform_device.h> #include <linux/mfd/wm8350/core.h> #include <linux/regmap.h> #include <linux/slab.h> static int wm8350_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct wm8350 *wm8350; struct wm8350_platform_data *pdata = dev_get_platdata(&i2c->dev); int ret = 0; wm8350 = devm_kzalloc(&i2c->dev, sizeof(struct wm8350), GFP_KERNEL); if (wm8350 == NULL) return -ENOMEM; wm8350->regmap = devm_regmap_init_i2c(i2c, &wm8350_regmap); if (IS_ERR(wm8350->regmap)) { ret = PTR_ERR(wm8350->regmap); dev_err(&i2c->dev, "Failed to allocate register map: %d\n", ret); return ret; } i2c_set_clientdata(i2c, wm8350); wm8350->dev = &i2c->dev; return wm8350_device_init(wm8350, i2c->irq, pdata); } static const struct i2c_device_id wm8350_i2c_id[] = { { "wm8350", 0 }, { "wm8351", 0 }, { "wm8352", 0 }, { } }; static struct i2c_driver wm8350_i2c_driver = { .driver = { .name = "wm8350", .suppress_bind_attrs = true, }, .probe = wm8350_i2c_probe, .id_table = wm8350_i2c_id, }; static int __init wm8350_i2c_init(void) { return i2c_add_driver(&wm8350_i2c_driver); } /* init early so consumer devices can complete system boot */ subsys_initcall(wm8350_i2c_init);