// 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");