70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* STMicroelectronics uvis25 i2c driver
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*
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* Copyright 2017 STMicroelectronics Inc.
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*
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* Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/mod_devicetable.h>
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#include <linux/i2c.h>
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#include <linux/slab.h>
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#include <linux/regmap.h>
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#include "st_uvis25.h"
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#define UVIS25_I2C_AUTO_INCREMENT BIT(7)
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static const struct regmap_config st_uvis25_i2c_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.write_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
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.read_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
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};
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static int st_uvis25_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct regmap *regmap;
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regmap = devm_regmap_init_i2c(client, &st_uvis25_i2c_regmap_config);
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if (IS_ERR(regmap)) {
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dev_err(&client->dev, "Failed to register i2c regmap %ld\n",
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PTR_ERR(regmap));
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return PTR_ERR(regmap);
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}
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return st_uvis25_probe(&client->dev, client->irq, regmap);
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}
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static const struct of_device_id st_uvis25_i2c_of_match[] = {
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{ .compatible = "st,uvis25", },
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{},
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};
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MODULE_DEVICE_TABLE(of, st_uvis25_i2c_of_match);
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static const struct i2c_device_id st_uvis25_i2c_id_table[] = {
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{ ST_UVIS25_DEV_NAME },
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{},
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};
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MODULE_DEVICE_TABLE(i2c, st_uvis25_i2c_id_table);
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static struct i2c_driver st_uvis25_driver = {
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.driver = {
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.name = "st_uvis25_i2c",
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.pm = pm_sleep_ptr(&st_uvis25_pm_ops),
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.of_match_table = st_uvis25_i2c_of_match,
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},
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.probe = st_uvis25_i2c_probe,
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.id_table = st_uvis25_i2c_id_table,
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};
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module_i2c_driver(st_uvis25_driver);
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MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
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MODULE_DESCRIPTION("STMicroelectronics uvis25 i2c driver");
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MODULE_LICENSE("GPL v2");
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MODULE_IMPORT_NS(IIO_UVIS25);
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