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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * STMicroelectronics hts221 i2c driver4 *5 * Copyright 2016 STMicroelectronics Inc.6 *7 * Lorenzo Bianconi <lorenzo.bianconi@st.com>8 */9 10#include <linux/kernel.h>11#include <linux/module.h>12#include <linux/mod_devicetable.h>13#include <linux/i2c.h>14#include <linux/slab.h>15#include <linux/regmap.h>16 17#include "hts221.h"18 19#define HTS221_I2C_AUTO_INCREMENT BIT(7)20 21static const struct regmap_config hts221_i2c_regmap_config = {22 .reg_bits = 8,23 .val_bits = 8,24 .write_flag_mask = HTS221_I2C_AUTO_INCREMENT,25 .read_flag_mask = HTS221_I2C_AUTO_INCREMENT,26};27 28static int hts221_i2c_probe(struct i2c_client *client)29{30 struct regmap *regmap;31 32 regmap = devm_regmap_init_i2c(client, &hts221_i2c_regmap_config);33 if (IS_ERR(regmap)) {34 dev_err(&client->dev, "Failed to register i2c regmap %ld\n",35 PTR_ERR(regmap));36 return PTR_ERR(regmap);37 }38 39 return hts221_probe(&client->dev, client->irq,40 client->name, regmap);41}42 43static const struct acpi_device_id hts221_acpi_match[] = {44 {"SMO9100", 0},45 { },46};47MODULE_DEVICE_TABLE(acpi, hts221_acpi_match);48 49static const struct of_device_id hts221_i2c_of_match[] = {50 { .compatible = "st,hts221", },51 {},52};53MODULE_DEVICE_TABLE(of, hts221_i2c_of_match);54 55static const struct i2c_device_id hts221_i2c_id_table[] = {56 { HTS221_DEV_NAME },57 {},58};59MODULE_DEVICE_TABLE(i2c, hts221_i2c_id_table);60 61static struct i2c_driver hts221_driver = {62 .driver = {63 .name = "hts221_i2c",64 .pm = pm_sleep_ptr(&hts221_pm_ops),65 .of_match_table = hts221_i2c_of_match,66 .acpi_match_table = hts221_acpi_match,67 },68 .probe = hts221_i2c_probe,69 .id_table = hts221_i2c_id_table,70};71module_i2c_driver(hts221_driver);72 73MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");74MODULE_DESCRIPTION("STMicroelectronics hts221 i2c driver");75MODULE_LICENSE("GPL v2");76MODULE_IMPORT_NS(IIO_HTS221);77