/* * STMicroelectronics uvis25 spi driver * * Copyright 2017 STMicroelectronics Inc. * * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> * * Licensed under the GPL-2. */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/spi/spi.h> #include <linux/slab.h> #include <linux/regmap.h> #include "st_uvis25.h" #define UVIS25_SENSORS_SPI_READ BIT(7) #define UVIS25_SPI_AUTO_INCREMENT BIT(6) static const struct regmap_config st_uvis25_spi_regmap_config = { .reg_bits = 8, .val_bits = 8, .read_flag_mask = UVIS25_SENSORS_SPI_READ | UVIS25_SPI_AUTO_INCREMENT, .write_flag_mask = UVIS25_SPI_AUTO_INCREMENT, }; static int st_uvis25_spi_probe(struct spi_device *spi) { struct regmap *regmap; regmap = devm_regmap_init_spi(spi, &st_uvis25_spi_regmap_config); if (IS_ERR(regmap)) { dev_err(&spi->dev, "Failed to register spi regmap %d\n", (int)PTR_ERR(regmap)); return PTR_ERR(regmap); } return st_uvis25_probe(&spi->dev, spi->irq, regmap); } static const struct of_device_id st_uvis25_spi_of_match[] = { { .compatible = "st,uvis25", }, {}, }; MODULE_DEVICE_TABLE(of, st_uvis25_spi_of_match); static const struct spi_device_id st_uvis25_spi_id_table[] = { { ST_UVIS25_DEV_NAME }, {}, }; MODULE_DEVICE_TABLE(spi, st_uvis25_spi_id_table); static struct spi_driver st_uvis25_driver = { .driver = { .name = "st_uvis25_spi", .pm = &st_uvis25_pm_ops, .of_match_table = of_match_ptr(st_uvis25_spi_of_match), }, .probe = st_uvis25_spi_probe, .id_table = st_uvis25_spi_id_table, }; module_spi_driver(st_uvis25_driver); MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>"); MODULE_DESCRIPTION("STMicroelectronics uvis25 spi driver"); MODULE_LICENSE("GPL v2");