1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * STMicroelectronics gyroscopes driver 4 * 5 * Copyright 2012-2013 STMicroelectronics Inc. 6 * 7 * Denis Ciocca <denis.ciocca@st.com> 8 */ 9 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/slab.h> 13 #include <linux/spi/spi.h> 14 #include <linux/iio/iio.h> 15 16 #include <linux/iio/common/st_sensors.h> 17 #include <linux/iio/common/st_sensors_spi.h> 18 #include "st_gyro.h" 19 20 #ifdef CONFIG_OF 21 /* 22 * For new single-chip sensors use <device_name> as compatible string. 23 * For old single-chip devices keep <device_name>-gyro to maintain 24 * compatibility 25 */ 26 static const struct of_device_id st_gyro_of_match[] = { 27 { 28 .compatible = "st,l3g4200d-gyro", 29 .data = L3G4200D_GYRO_DEV_NAME, 30 }, 31 { 32 .compatible = "st,lsm330d-gyro", 33 .data = LSM330D_GYRO_DEV_NAME, 34 }, 35 { 36 .compatible = "st,lsm330dl-gyro", 37 .data = LSM330DL_GYRO_DEV_NAME, 38 }, 39 { 40 .compatible = "st,lsm330dlc-gyro", 41 .data = LSM330DLC_GYRO_DEV_NAME, 42 }, 43 { 44 .compatible = "st,l3gd20-gyro", 45 .data = L3GD20_GYRO_DEV_NAME, 46 }, 47 { 48 .compatible = "st,l3gd20h-gyro", 49 .data = L3GD20H_GYRO_DEV_NAME, 50 }, 51 { 52 .compatible = "st,l3g4is-gyro", 53 .data = L3G4IS_GYRO_DEV_NAME, 54 }, 55 { 56 .compatible = "st,lsm330-gyro", 57 .data = LSM330_GYRO_DEV_NAME, 58 }, 59 { 60 .compatible = "st,lsm9ds0-gyro", 61 .data = LSM9DS0_GYRO_DEV_NAME, 62 }, 63 {}, 64 }; 65 MODULE_DEVICE_TABLE(of, st_gyro_of_match); 66 #else 67 #define st_gyro_of_match NULL 68 #endif 69 70 static int st_gyro_spi_probe(struct spi_device *spi) 71 { 72 struct iio_dev *indio_dev; 73 struct st_sensor_data *gdata; 74 int err; 75 76 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*gdata)); 77 if (!indio_dev) 78 return -ENOMEM; 79 80 gdata = iio_priv(indio_dev); 81 82 st_sensors_of_name_probe(&spi->dev, st_gyro_of_match, 83 spi->modalias, sizeof(spi->modalias)); 84 st_sensors_spi_configure(indio_dev, spi, gdata); 85 86 err = st_gyro_common_probe(indio_dev); 87 if (err < 0) 88 return err; 89 90 return 0; 91 } 92 93 static int st_gyro_spi_remove(struct spi_device *spi) 94 { 95 st_gyro_common_remove(spi_get_drvdata(spi)); 96 97 return 0; 98 } 99 100 static const struct spi_device_id st_gyro_id_table[] = { 101 { L3G4200D_GYRO_DEV_NAME }, 102 { LSM330D_GYRO_DEV_NAME }, 103 { LSM330DL_GYRO_DEV_NAME }, 104 { LSM330DLC_GYRO_DEV_NAME }, 105 { L3GD20_GYRO_DEV_NAME }, 106 { L3GD20H_GYRO_DEV_NAME }, 107 { L3G4IS_GYRO_DEV_NAME }, 108 { LSM330_GYRO_DEV_NAME }, 109 { LSM9DS0_GYRO_DEV_NAME }, 110 {}, 111 }; 112 MODULE_DEVICE_TABLE(spi, st_gyro_id_table); 113 114 static struct spi_driver st_gyro_driver = { 115 .driver = { 116 .name = "st-gyro-spi", 117 .of_match_table = of_match_ptr(st_gyro_of_match), 118 }, 119 .probe = st_gyro_spi_probe, 120 .remove = st_gyro_spi_remove, 121 .id_table = st_gyro_id_table, 122 }; 123 module_spi_driver(st_gyro_driver); 124 125 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 126 MODULE_DESCRIPTION("STMicroelectronics gyroscopes spi driver"); 127 MODULE_LICENSE("GPL v2"); 128