1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * ADXL355 3-Axis Digital Accelerometer SPI driver 4 * 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 13 #include "adxl355.h" 14 15 static const struct regmap_config adxl355_spi_regmap_config = { 16 .reg_bits = 7, 17 .pad_bits = 1, 18 .val_bits = 8, 19 .read_flag_mask = BIT(0), 20 .max_register = 0x2F, 21 .rd_table = &adxl355_readable_regs_tbl, 22 .wr_table = &adxl355_writeable_regs_tbl, 23 }; 24 25 static int adxl355_spi_probe(struct spi_device *spi) 26 { 27 const struct spi_device_id *id = spi_get_device_id(spi); 28 struct regmap *regmap; 29 30 regmap = devm_regmap_init_spi(spi, &adxl355_spi_regmap_config); 31 if (IS_ERR(regmap)) { 32 dev_err(&spi->dev, "Error initializing spi regmap: %ld\n", 33 PTR_ERR(regmap)); 34 35 return PTR_ERR(regmap); 36 } 37 38 return adxl355_core_probe(&spi->dev, regmap, id->name); 39 } 40 41 static const struct spi_device_id adxl355_spi_id[] = { 42 { "adxl355", 0 }, 43 { } 44 }; 45 MODULE_DEVICE_TABLE(spi, adxl355_spi_id); 46 47 static const struct of_device_id adxl355_of_match[] = { 48 { .compatible = "adi,adxl355" }, 49 { } 50 }; 51 MODULE_DEVICE_TABLE(of, adxl355_of_match); 52 53 static struct spi_driver adxl355_spi_driver = { 54 .driver = { 55 .name = "adxl355_spi", 56 .of_match_table = adxl355_of_match, 57 }, 58 .probe = adxl355_spi_probe, 59 .id_table = adxl355_spi_id, 60 }; 61 module_spi_driver(adxl355_spi_driver); 62 63 MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>"); 64 MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer SPI driver"); 65 MODULE_LICENSE("GPL v2"); 66