// SPDX-License-Identifier: GPL-2.0-only /* * ADXL355 3-Axis Digital Accelerometer SPI driver * * Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com> */ #include <linux/module.h> #include <linux/mod_devicetable.h> #include <linux/regmap.h> #include <linux/spi/spi.h> #include <linux/property.h> #include "adxl355.h" static const struct regmap_config adxl355_spi_regmap_config = { .reg_bits = 7, .pad_bits = 1, .val_bits = 8, .read_flag_mask = BIT(0), .max_register = 0x2F, .rd_table = &adxl355_readable_regs_tbl, .wr_table = &adxl355_writeable_regs_tbl, }; static int adxl355_spi_probe(struct spi_device *spi) { const struct adxl355_chip_info *chip_data; struct regmap *regmap; chip_data = device_get_match_data(&spi->dev); if (!chip_data) { chip_data = (void *)spi_get_device_id(spi)->driver_data; if (!chip_data) return -EINVAL; } regmap = devm_regmap_init_spi(spi, &adxl355_spi_regmap_config); if (IS_ERR(regmap)) { dev_err(&spi->dev, "Error initializing spi regmap: %ld\n", PTR_ERR(regmap)); return PTR_ERR(regmap); } return adxl355_core_probe(&spi->dev, regmap, chip_data); } static const struct spi_device_id adxl355_spi_id[] = { { "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] }, { "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] }, { } }; MODULE_DEVICE_TABLE(spi, adxl355_spi_id); static const struct of_device_id adxl355_of_match[] = { { .compatible = "adi,adxl355", .data = &adxl35x_chip_info[ADXL355] }, { .compatible = "adi,adxl359", .data = &adxl35x_chip_info[ADXL359] }, { } }; MODULE_DEVICE_TABLE(of, adxl355_of_match); static struct spi_driver adxl355_spi_driver = { .driver = { .name = "adxl355_spi", .of_match_table = adxl355_of_match, }, .probe = adxl355_spi_probe, .id_table = adxl355_spi_id, }; module_spi_driver(adxl355_spi_driver); MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>"); MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer SPI driver"); MODULE_LICENSE("GPL v2"); MODULE_IMPORT_NS(IIO_ADXL355);