1 /* 2 * 3-axis accelerometer driver supporting SPI Bosch-Sensortec accelerometer chip 3 * Copyright © 2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License as published by 7 * the Free Software Foundation; either version 2 of the License, or 8 * (at your option) any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #include <linux/device.h> 20 #include <linux/mod_devicetable.h> 21 #include <linux/module.h> 22 #include <linux/acpi.h> 23 #include <linux/regmap.h> 24 #include <linux/spi/spi.h> 25 26 #include "bmc150-accel.h" 27 28 static const struct regmap_config bmc150_spi_regmap_conf = { 29 .reg_bits = 8, 30 .val_bits = 8, 31 .max_register = 0x3f, 32 }; 33 34 static int bmc150_accel_probe(struct spi_device *spi) 35 { 36 struct regmap *regmap; 37 const struct spi_device_id *id = spi_get_device_id(spi); 38 39 regmap = devm_regmap_init_spi(spi, &bmc150_spi_regmap_conf); 40 if (IS_ERR(regmap)) { 41 dev_err(&spi->dev, "Failed to initialize spi regmap\n"); 42 return PTR_ERR(regmap); 43 } 44 45 return bmc150_accel_core_probe(&spi->dev, regmap, spi->irq, id->name, 46 true); 47 } 48 49 static int bmc150_accel_remove(struct spi_device *spi) 50 { 51 return bmc150_accel_core_remove(&spi->dev); 52 } 53 54 static const struct acpi_device_id bmc150_accel_acpi_match[] = { 55 {"BSBA0150", bmc150}, 56 {"BMC150A", bmc150}, 57 {"BMI055A", bmi055}, 58 {"BMA0255", bma255}, 59 {"BMA250E", bma250e}, 60 {"BMA222E", bma222e}, 61 {"BMA0280", bma280}, 62 { }, 63 }; 64 MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match); 65 66 static const struct spi_device_id bmc150_accel_id[] = { 67 {"bmc150_accel", bmc150}, 68 {"bmi055_accel", bmi055}, 69 {"bma255", bma255}, 70 {"bma250e", bma250e}, 71 {"bma222e", bma222e}, 72 {"bma280", bma280}, 73 {} 74 }; 75 MODULE_DEVICE_TABLE(spi, bmc150_accel_id); 76 77 static struct spi_driver bmc150_accel_driver = { 78 .driver = { 79 .name = "bmc150_accel_spi", 80 .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match), 81 .pm = &bmc150_accel_pm_ops, 82 }, 83 .probe = bmc150_accel_probe, 84 .remove = bmc150_accel_remove, 85 .id_table = bmc150_accel_id, 86 }; 87 module_spi_driver(bmc150_accel_driver); 88 89 MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>"); 90 MODULE_LICENSE("GPL v2"); 91 MODULE_DESCRIPTION("BMC150 SPI accelerometer driver"); 92