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| // SPDX-License-Identifier: GPL-2.0-or-later
| /*
| * Driver for the Analog Devices digital potentiometers (I2C bus)
| *
| * Copyright (C) 2010-2011 Michael Hennerich, Analog Devices Inc.
| */
|
| #include <linux/i2c.h>
| #include <linux/module.h>
|
| #include "ad525x_dpot.h"
|
| /* I2C bus functions */
| static int write_d8(void *client, u8 val)
| {
| return i2c_smbus_write_byte(client, val);
| }
|
| static int write_r8d8(void *client, u8 reg, u8 val)
| {
| return i2c_smbus_write_byte_data(client, reg, val);
| }
|
| static int write_r8d16(void *client, u8 reg, u16 val)
| {
| return i2c_smbus_write_word_data(client, reg, val);
| }
|
| static int read_d8(void *client)
| {
| return i2c_smbus_read_byte(client);
| }
|
| static int read_r8d8(void *client, u8 reg)
| {
| return i2c_smbus_read_byte_data(client, reg);
| }
|
| static int read_r8d16(void *client, u8 reg)
| {
| return i2c_smbus_read_word_data(client, reg);
| }
|
| static const struct ad_dpot_bus_ops bops = {
| .read_d8 = read_d8,
| .read_r8d8 = read_r8d8,
| .read_r8d16 = read_r8d16,
| .write_d8 = write_d8,
| .write_r8d8 = write_r8d8,
| .write_r8d16 = write_r8d16,
| };
|
| static int ad_dpot_i2c_probe(struct i2c_client *client,
| const struct i2c_device_id *id)
| {
| struct ad_dpot_bus_data bdata = {
| .client = client,
| .bops = &bops,
| };
|
| if (!i2c_check_functionality(client->adapter,
| I2C_FUNC_SMBUS_WORD_DATA)) {
| dev_err(&client->dev, "SMBUS Word Data not Supported\n");
| return -EIO;
| }
|
| return ad_dpot_probe(&client->dev, &bdata, id->driver_data, id->name);
| }
|
| static int ad_dpot_i2c_remove(struct i2c_client *client)
| {
| return ad_dpot_remove(&client->dev);
| }
|
| static const struct i2c_device_id ad_dpot_id[] = {
| {"ad5258", AD5258_ID},
| {"ad5259", AD5259_ID},
| {"ad5251", AD5251_ID},
| {"ad5252", AD5252_ID},
| {"ad5253", AD5253_ID},
| {"ad5254", AD5254_ID},
| {"ad5255", AD5255_ID},
| {"ad5241", AD5241_ID},
| {"ad5242", AD5242_ID},
| {"ad5243", AD5243_ID},
| {"ad5245", AD5245_ID},
| {"ad5246", AD5246_ID},
| {"ad5247", AD5247_ID},
| {"ad5248", AD5248_ID},
| {"ad5280", AD5280_ID},
| {"ad5282", AD5282_ID},
| {"adn2860", ADN2860_ID},
| {"ad5273", AD5273_ID},
| {"ad5161", AD5161_ID},
| {"ad5171", AD5171_ID},
| {"ad5170", AD5170_ID},
| {"ad5172", AD5172_ID},
| {"ad5173", AD5173_ID},
| {"ad5272", AD5272_ID},
| {"ad5274", AD5274_ID},
| {}
| };
| MODULE_DEVICE_TABLE(i2c, ad_dpot_id);
|
| static struct i2c_driver ad_dpot_i2c_driver = {
| .driver = {
| .name = "ad_dpot",
| },
| .probe = ad_dpot_i2c_probe,
| .remove = ad_dpot_i2c_remove,
| .id_table = ad_dpot_id,
| };
|
| module_i2c_driver(ad_dpot_i2c_driver);
|
| MODULE_AUTHOR("Michael Hennerich <michael.hennerich@analog.com>");
| MODULE_DESCRIPTION("digital potentiometer I2C bus driver");
| MODULE_LICENSE("GPL");
|
|
