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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * STMicroelectronics uvis25 spi driver4 *5 * Copyright 2017 STMicroelectronics Inc.6 *7 * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>8 */9 10#include <linux/kernel.h>11#include <linux/module.h>12#include <linux/mod_devicetable.h>13#include <linux/spi/spi.h>14#include <linux/slab.h>15#include <linux/regmap.h>16 17#include "st_uvis25.h"18 19#define UVIS25_SENSORS_SPI_READ BIT(7)20#define UVIS25_SPI_AUTO_INCREMENT BIT(6)21 22static const struct regmap_config st_uvis25_spi_regmap_config = {23 .reg_bits = 8,24 .val_bits = 8,25 .read_flag_mask = UVIS25_SENSORS_SPI_READ | UVIS25_SPI_AUTO_INCREMENT,26 .write_flag_mask = UVIS25_SPI_AUTO_INCREMENT,27};28 29static int st_uvis25_spi_probe(struct spi_device *spi)30{31 struct regmap *regmap;32 33 regmap = devm_regmap_init_spi(spi, &st_uvis25_spi_regmap_config);34 if (IS_ERR(regmap)) {35 dev_err(&spi->dev, "Failed to register spi regmap %ld\n",36 PTR_ERR(regmap));37 return PTR_ERR(regmap);38 }39 40 return st_uvis25_probe(&spi->dev, spi->irq, regmap);41}42 43static const struct of_device_id st_uvis25_spi_of_match[] = {44 { .compatible = "st,uvis25", },45 {},46};47MODULE_DEVICE_TABLE(of, st_uvis25_spi_of_match);48 49static const struct spi_device_id st_uvis25_spi_id_table[] = {50 { ST_UVIS25_DEV_NAME },51 {},52};53MODULE_DEVICE_TABLE(spi, st_uvis25_spi_id_table);54 55static struct spi_driver st_uvis25_driver = {56 .driver = {57 .name = "st_uvis25_spi",58 .pm = pm_sleep_ptr(&st_uvis25_pm_ops),59 .of_match_table = st_uvis25_spi_of_match,60 },61 .probe = st_uvis25_spi_probe,62 .id_table = st_uvis25_spi_id_table,63};64module_spi_driver(st_uvis25_driver);65 66MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");67MODULE_DESCRIPTION("STMicroelectronics uvis25 spi driver");68MODULE_LICENSE("GPL v2");69MODULE_IMPORT_NS(IIO_UVIS25);70