mirror of
https://github.com/torvalds/linux.git
synced 2024-11-30 08:01:59 +00:00
b41cabb7be
After commitb8a1a4cd5a("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then03c835f498("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
85 lines
1.7 KiB
C
85 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* Copyright (C) 2009 Wolfram Sang, Pengutronix
|
|
*
|
|
* Check max730x.c for further details.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/spi/max7301.h>
|
|
#include <linux/slab.h>
|
|
|
|
static int max7300_i2c_write(struct device *dev, unsigned int reg,
|
|
unsigned int val)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
return i2c_smbus_write_byte_data(client, reg, val);
|
|
}
|
|
|
|
static int max7300_i2c_read(struct device *dev, unsigned int reg)
|
|
{
|
|
struct i2c_client *client = to_i2c_client(dev);
|
|
|
|
return i2c_smbus_read_byte_data(client, reg);
|
|
}
|
|
|
|
static int max7300_probe(struct i2c_client *client)
|
|
{
|
|
struct max7301 *ts;
|
|
|
|
if (!i2c_check_functionality(client->adapter,
|
|
I2C_FUNC_SMBUS_BYTE_DATA))
|
|
return -EIO;
|
|
|
|
ts = devm_kzalloc(&client->dev, sizeof(struct max7301), GFP_KERNEL);
|
|
if (!ts)
|
|
return -ENOMEM;
|
|
|
|
ts->read = max7300_i2c_read;
|
|
ts->write = max7300_i2c_write;
|
|
ts->dev = &client->dev;
|
|
|
|
return __max730x_probe(ts);
|
|
}
|
|
|
|
static void max7300_remove(struct i2c_client *client)
|
|
{
|
|
__max730x_remove(&client->dev);
|
|
}
|
|
|
|
static const struct i2c_device_id max7300_id[] = {
|
|
{ "max7300", 0 },
|
|
{ }
|
|
};
|
|
MODULE_DEVICE_TABLE(i2c, max7300_id);
|
|
|
|
static struct i2c_driver max7300_driver = {
|
|
.driver = {
|
|
.name = "max7300",
|
|
},
|
|
.probe = max7300_probe,
|
|
.remove = max7300_remove,
|
|
.id_table = max7300_id,
|
|
};
|
|
|
|
static int __init max7300_init(void)
|
|
{
|
|
return i2c_add_driver(&max7300_driver);
|
|
}
|
|
subsys_initcall(max7300_init);
|
|
|
|
static void __exit max7300_exit(void)
|
|
{
|
|
i2c_del_driver(&max7300_driver);
|
|
}
|
|
module_exit(max7300_exit);
|
|
|
|
MODULE_AUTHOR("Wolfram Sang");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_DESCRIPTION("MAX7300 GPIO-Expander");
|