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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * ADXL355 3-Axis Digital Accelerometer SPI driver4 *5 * Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com>6 */7 8#include <linux/module.h>9#include <linux/mod_devicetable.h>10#include <linux/regmap.h>11#include <linux/spi/spi.h>12#include <linux/property.h>13 14#include "adxl355.h"15 16static const struct regmap_config adxl355_spi_regmap_config = {17 .reg_bits = 7,18 .pad_bits = 1,19 .val_bits = 8,20 .read_flag_mask = BIT(0),21 .max_register = 0x2F,22 .rd_table = &adxl355_readable_regs_tbl,23 .wr_table = &adxl355_writeable_regs_tbl,24};25 26static int adxl355_spi_probe(struct spi_device *spi)27{28 const struct adxl355_chip_info *chip_data;29 struct regmap *regmap;30 31 chip_data = spi_get_device_match_data(spi);32 if (!chip_data)33 return -EINVAL;34 35 regmap = devm_regmap_init_spi(spi, &adxl355_spi_regmap_config);36 if (IS_ERR(regmap)) {37 dev_err(&spi->dev, "Error initializing spi regmap: %ld\n",38 PTR_ERR(regmap));39 40 return PTR_ERR(regmap);41 }42 43 return adxl355_core_probe(&spi->dev, regmap, chip_data);44}45 46static const struct spi_device_id adxl355_spi_id[] = {47 { "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] },48 { "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] },49 { }50};51MODULE_DEVICE_TABLE(spi, adxl355_spi_id);52 53static const struct of_device_id adxl355_of_match[] = {54 { .compatible = "adi,adxl355", .data = &adxl35x_chip_info[ADXL355] },55 { .compatible = "adi,adxl359", .data = &adxl35x_chip_info[ADXL359] },56 { }57};58MODULE_DEVICE_TABLE(of, adxl355_of_match);59 60static struct spi_driver adxl355_spi_driver = {61 .driver = {62 .name = "adxl355_spi",63 .of_match_table = adxl355_of_match,64 },65 .probe = adxl355_spi_probe,66 .id_table = adxl355_spi_id,67};68module_spi_driver(adxl355_spi_driver);69 70MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>");71MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer SPI driver");72MODULE_LICENSE("GPL v2");73MODULE_IMPORT_NS(IIO_ADXL355);74