| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * STMicroelectronics hts221 i2c driver |
| * |
| * Copyright 2016 STMicroelectronics Inc. |
| * |
| * Lorenzo Bianconi <lorenzo.bianconi@st.com> |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/acpi.h> |
| #include <linux/i2c.h> |
| #include <linux/slab.h> |
| #include <linux/regmap.h> |
| |
| #include "hts221.h" |
| |
| #define HTS221_I2C_AUTO_INCREMENT BIT(7) |
| |
| static const struct regmap_config hts221_i2c_regmap_config = { |
| .reg_bits = 8, |
| .val_bits = 8, |
| .write_flag_mask = HTS221_I2C_AUTO_INCREMENT, |
| .read_flag_mask = HTS221_I2C_AUTO_INCREMENT, |
| }; |
| |
| static int hts221_i2c_probe(struct i2c_client *client) |
| { |
| struct regmap *regmap; |
| |
| regmap = devm_regmap_init_i2c(client, &hts221_i2c_regmap_config); |
| if (IS_ERR(regmap)) { |
| dev_err(&client->dev, "Failed to register i2c regmap %ld\n", |
| PTR_ERR(regmap)); |
| return PTR_ERR(regmap); |
| } |
| |
| return hts221_probe(&client->dev, client->irq, |
| client->name, regmap); |
| } |
| |
| static const struct acpi_device_id hts221_acpi_match[] = { |
| {"SMO9100", 0}, |
| { }, |
| }; |
| MODULE_DEVICE_TABLE(acpi, hts221_acpi_match); |
| |
| static const struct of_device_id hts221_i2c_of_match[] = { |
| { .compatible = "st,hts221", }, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(of, hts221_i2c_of_match); |
| |
| static const struct i2c_device_id hts221_i2c_id_table[] = { |
| { HTS221_DEV_NAME }, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(i2c, hts221_i2c_id_table); |
| |
| static struct i2c_driver hts221_driver = { |
| .driver = { |
| .name = "hts221_i2c", |
| .pm = pm_sleep_ptr(&hts221_pm_ops), |
| .of_match_table = hts221_i2c_of_match, |
| .acpi_match_table = ACPI_PTR(hts221_acpi_match), |
| }, |
| .probe_new = hts221_i2c_probe, |
| .id_table = hts221_i2c_id_table, |
| }; |
| module_i2c_driver(hts221_driver); |
| |
| MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>"); |
| MODULE_DESCRIPTION("STMicroelectronics hts221 i2c driver"); |
| MODULE_LICENSE("GPL v2"); |
| MODULE_IMPORT_NS(IIO_HTS221); |