1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * STMicroelectronics accelerometers 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_accel.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>-accel to maintain 24 * compatibility 25 */ 26 static const struct of_device_id st_accel_of_match[] = { 27 { 28 /* An older compatible */ 29 .compatible = "st,lis302dl-spi", 30 .data = LIS3LV02DL_ACCEL_DEV_NAME, 31 }, 32 { 33 .compatible = "st,lis3lv02dl-accel", 34 .data = LIS3LV02DL_ACCEL_DEV_NAME, 35 }, 36 { 37 .compatible = "st,lis3dh-accel", 38 .data = LIS3DH_ACCEL_DEV_NAME, 39 }, 40 { 41 .compatible = "st,lsm330d-accel", 42 .data = LSM330D_ACCEL_DEV_NAME, 43 }, 44 { 45 .compatible = "st,lsm330dl-accel", 46 .data = LSM330DL_ACCEL_DEV_NAME, 47 }, 48 { 49 .compatible = "st,lsm330dlc-accel", 50 .data = LSM330DLC_ACCEL_DEV_NAME, 51 }, 52 { 53 .compatible = "st,lis331dlh-accel", 54 .data = LIS331DLH_ACCEL_DEV_NAME, 55 }, 56 { 57 .compatible = "st,lsm330-accel", 58 .data = LSM330_ACCEL_DEV_NAME, 59 }, 60 { 61 .compatible = "st,lsm303agr-accel", 62 .data = LSM303AGR_ACCEL_DEV_NAME, 63 }, 64 { 65 .compatible = "st,lis2dh12-accel", 66 .data = LIS2DH12_ACCEL_DEV_NAME, 67 }, 68 { 69 .compatible = "st,lis3l02dq", 70 .data = LIS3L02DQ_ACCEL_DEV_NAME, 71 }, 72 { 73 .compatible = "st,lng2dm-accel", 74 .data = LNG2DM_ACCEL_DEV_NAME, 75 }, 76 { 77 .compatible = "st,h3lis331dl-accel", 78 .data = H3LIS331DL_ACCEL_DEV_NAME, 79 }, 80 { 81 .compatible = "st,lis331dl-accel", 82 .data = LIS331DL_ACCEL_DEV_NAME, 83 }, 84 { 85 .compatible = "st,lis2dw12", 86 .data = LIS2DW12_ACCEL_DEV_NAME, 87 }, 88 { 89 .compatible = "st,lis3dhh", 90 .data = LIS3DHH_ACCEL_DEV_NAME, 91 }, 92 { 93 .compatible = "st,lis3de", 94 .data = LIS3DE_ACCEL_DEV_NAME, 95 }, 96 {} 97 }; 98 MODULE_DEVICE_TABLE(of, st_accel_of_match); 99 #else 100 #define st_accel_of_match NULL 101 #endif 102 103 static int st_accel_spi_probe(struct spi_device *spi) 104 { 105 struct iio_dev *indio_dev; 106 struct st_sensor_data *adata; 107 int err; 108 109 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adata)); 110 if (!indio_dev) 111 return -ENOMEM; 112 113 adata = iio_priv(indio_dev); 114 115 st_sensors_of_name_probe(&spi->dev, st_accel_of_match, 116 spi->modalias, sizeof(spi->modalias)); 117 st_sensors_spi_configure(indio_dev, spi, adata); 118 119 err = st_accel_common_probe(indio_dev); 120 if (err < 0) 121 return err; 122 123 return 0; 124 } 125 126 static int st_accel_spi_remove(struct spi_device *spi) 127 { 128 st_accel_common_remove(spi_get_drvdata(spi)); 129 130 return 0; 131 } 132 133 static const struct spi_device_id st_accel_id_table[] = { 134 { LIS3DH_ACCEL_DEV_NAME }, 135 { LSM330D_ACCEL_DEV_NAME }, 136 { LSM330DL_ACCEL_DEV_NAME }, 137 { LSM330DLC_ACCEL_DEV_NAME }, 138 { LIS331DLH_ACCEL_DEV_NAME }, 139 { LSM330_ACCEL_DEV_NAME }, 140 { LSM303AGR_ACCEL_DEV_NAME }, 141 { LIS2DH12_ACCEL_DEV_NAME }, 142 { LIS3L02DQ_ACCEL_DEV_NAME }, 143 { LNG2DM_ACCEL_DEV_NAME }, 144 { H3LIS331DL_ACCEL_DEV_NAME }, 145 { LIS331DL_ACCEL_DEV_NAME }, 146 { LIS3LV02DL_ACCEL_DEV_NAME }, 147 { LIS2DW12_ACCEL_DEV_NAME }, 148 { LIS3DHH_ACCEL_DEV_NAME }, 149 { LIS3DE_ACCEL_DEV_NAME }, 150 {}, 151 }; 152 MODULE_DEVICE_TABLE(spi, st_accel_id_table); 153 154 static struct spi_driver st_accel_driver = { 155 .driver = { 156 .name = "st-accel-spi", 157 .of_match_table = of_match_ptr(st_accel_of_match), 158 }, 159 .probe = st_accel_spi_probe, 160 .remove = st_accel_spi_remove, 161 .id_table = st_accel_id_table, 162 }; 163 module_spi_driver(st_accel_driver); 164 165 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 166 MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver"); 167 MODULE_LICENSE("GPL v2"); 168