| // SPDX-License-Identifier: GPL-2.0-only | 
| /* | 
|  * STMicroelectronics hts221 spi driver | 
|  * | 
|  * Copyright 2016 STMicroelectronics Inc. | 
|  * | 
|  * Lorenzo Bianconi <lorenzo.bianconi@st.com> | 
|  */ | 
|   | 
| #include <linux/kernel.h> | 
| #include <linux/module.h> | 
| #include <linux/spi/spi.h> | 
| #include <linux/slab.h> | 
| #include <linux/regmap.h> | 
|   | 
| #include "hts221.h" | 
|   | 
| #define HTS221_SPI_READ            BIT(7) | 
| #define HTS221_SPI_AUTO_INCREMENT    BIT(6) | 
|   | 
| static const struct regmap_config hts221_spi_regmap_config = { | 
|     .reg_bits = 8, | 
|     .val_bits = 8, | 
|     .write_flag_mask = HTS221_SPI_AUTO_INCREMENT, | 
|     .read_flag_mask = HTS221_SPI_READ | HTS221_SPI_AUTO_INCREMENT, | 
| }; | 
|   | 
| static int hts221_spi_probe(struct spi_device *spi) | 
| { | 
|     struct regmap *regmap; | 
|   | 
|     regmap = devm_regmap_init_spi(spi, &hts221_spi_regmap_config); | 
|     if (IS_ERR(regmap)) { | 
|         dev_err(&spi->dev, "Failed to register spi regmap %ld\n", | 
|             PTR_ERR(regmap)); | 
|         return PTR_ERR(regmap); | 
|     } | 
|   | 
|     return hts221_probe(&spi->dev, spi->irq, | 
|                 spi->modalias, regmap); | 
| } | 
|   | 
| static const struct of_device_id hts221_spi_of_match[] = { | 
|     { .compatible = "st,hts221", }, | 
|     {}, | 
| }; | 
| MODULE_DEVICE_TABLE(of, hts221_spi_of_match); | 
|   | 
| static const struct spi_device_id hts221_spi_id_table[] = { | 
|     { HTS221_DEV_NAME }, | 
|     {}, | 
| }; | 
| MODULE_DEVICE_TABLE(spi, hts221_spi_id_table); | 
|   | 
| static struct spi_driver hts221_driver = { | 
|     .driver = { | 
|         .name = "hts221_spi", | 
|         .pm = &hts221_pm_ops, | 
|         .of_match_table = hts221_spi_of_match, | 
|     }, | 
|     .probe = hts221_spi_probe, | 
|     .id_table = hts221_spi_id_table, | 
| }; | 
| module_spi_driver(hts221_driver); | 
|   | 
| MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>"); | 
| MODULE_DESCRIPTION("STMicroelectronics hts221 spi driver"); | 
| MODULE_LICENSE("GPL v2"); |