diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/mfd/wm8350-i2c.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/mfd/wm8350-i2c.c b/drivers/mfd/wm8350-i2c.c new file mode 100644 index 0000000000..c2a7d70699 --- /dev/null +++ b/drivers/mfd/wm8350-i2c.c @@ -0,0 +1,64 @@ +// 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) +{ + 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); |