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beee7890c3
Up to now adt7x10_remove() returns zero unconditionally. Make it return void instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and spi remove callbacks is ignored anyway. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20211011132754.2479853-3-u.kleine-koenig@pengutronix.de Signed-off-by: Guenter Roeck <linux@roeck-us.net>
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* ADT7410/ADT7420 digital temperature sensor driver
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*
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* Copyright 2012-2013 Analog Devices Inc.
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* Author: Lars-Peter Clausen <lars@metafoo.de>
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/i2c.h>
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#include "adt7x10.h"
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static int adt7410_i2c_read_word(struct device *dev, u8 reg)
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{
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return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg);
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}
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static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data)
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{
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return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data);
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}
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static int adt7410_i2c_read_byte(struct device *dev, u8 reg)
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{
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return i2c_smbus_read_byte_data(to_i2c_client(dev), reg);
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}
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static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data)
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{
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return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data);
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}
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static const struct adt7x10_ops adt7410_i2c_ops = {
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.read_word = adt7410_i2c_read_word,
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.write_word = adt7410_i2c_write_word,
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.read_byte = adt7410_i2c_read_byte,
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.write_byte = adt7410_i2c_write_byte,
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};
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static int adt7410_i2c_probe(struct i2c_client *client)
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{
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if (!i2c_check_functionality(client->adapter,
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I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
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return -ENODEV;
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return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops);
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}
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static int adt7410_i2c_remove(struct i2c_client *client)
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{
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adt7x10_remove(&client->dev, client->irq);
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return 0;
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}
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static const struct i2c_device_id adt7410_ids[] = {
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{ "adt7410", 0 },
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{ "adt7420", 0 },
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{}
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};
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MODULE_DEVICE_TABLE(i2c, adt7410_ids);
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static struct i2c_driver adt7410_driver = {
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.class = I2C_CLASS_HWMON,
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.driver = {
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.name = "adt7410",
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.pm = ADT7X10_DEV_PM_OPS,
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},
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.probe_new = adt7410_i2c_probe,
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.remove = adt7410_i2c_remove,
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.id_table = adt7410_ids,
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.address_list = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b),
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};
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module_i2c_driver(adt7410_driver);
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MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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MODULE_DESCRIPTION("ADT7410/AD7420 driver");
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MODULE_LICENSE("GPL");
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