1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Driver for NXP Fxas21002c Gyroscope - SPI 4 * 5 * Copyright (C) 2019 Linaro Ltd. 6 */ 7 8 #include <linux/err.h> 9 #include <linux/mod_devicetable.h> 10 #include <linux/module.h> 11 #include <linux/regmap.h> 12 #include <linux/spi/spi.h> 13 14 #include "fxas21002c.h" 15 16 static const struct regmap_config fxas21002c_regmap_spi_conf = { 17 .reg_bits = 8, 18 .val_bits = 8, 19 .max_register = FXAS21002C_REG_CTRL3, 20 }; 21 22 static int fxas21002c_spi_probe(struct spi_device *spi) 23 { 24 const struct spi_device_id *id = spi_get_device_id(spi); 25 struct regmap *regmap; 26 27 regmap = devm_regmap_init_spi(spi, &fxas21002c_regmap_spi_conf); 28 if (IS_ERR(regmap)) { 29 dev_err(&spi->dev, "Failed to register spi regmap: %ld\n", 30 PTR_ERR(regmap)); 31 return PTR_ERR(regmap); 32 } 33 34 return fxas21002c_core_probe(&spi->dev, regmap, spi->irq, id->name); 35 } 36 37 static int fxas21002c_spi_remove(struct spi_device *spi) 38 { 39 fxas21002c_core_remove(&spi->dev); 40 41 return 0; 42 } 43 44 static const struct spi_device_id fxas21002c_spi_id[] = { 45 { "fxas21002c", 0 }, 46 { } 47 }; 48 MODULE_DEVICE_TABLE(spi, fxas21002c_spi_id); 49 50 static const struct of_device_id fxas21002c_spi_of_match[] = { 51 { .compatible = "nxp,fxas21002c", }, 52 { } 53 }; 54 MODULE_DEVICE_TABLE(of, fxas21002c_spi_of_match); 55 56 static struct spi_driver fxas21002c_spi_driver = { 57 .driver = { 58 .name = "fxas21002c_spi", 59 .pm = &fxas21002c_pm_ops, 60 .of_match_table = fxas21002c_spi_of_match, 61 }, 62 .probe = fxas21002c_spi_probe, 63 .remove = fxas21002c_spi_remove, 64 .id_table = fxas21002c_spi_id, 65 }; 66 module_spi_driver(fxas21002c_spi_driver); 67 68 MODULE_AUTHOR("Rui Miguel Silva <rui.silva@linaro.org>"); 69 MODULE_LICENSE("GPL v2"); 70 MODULE_DESCRIPTION("FXAS21002C SPI Gyro driver"); 71