1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * STMicroelectronics st_lsm6dsx spi driver 4 * 5 * Copyright 2016 STMicroelectronics Inc. 6 * 7 * Lorenzo Bianconi <lorenzo.bianconi@st.com> 8 * Denis Ciocca <denis.ciocca@st.com> 9 */ 10 11 #include <linux/kernel.h> 12 #include <linux/module.h> 13 #include <linux/spi/spi.h> 14 #include <linux/slab.h> 15 #include <linux/of.h> 16 #include <linux/regmap.h> 17 18 #include "st_lsm6dsx.h" 19 20 static const struct regmap_config st_lsm6dsx_spi_regmap_config = { 21 .reg_bits = 8, 22 .val_bits = 8, 23 }; 24 25 static int st_lsm6dsx_spi_probe(struct spi_device *spi) 26 { 27 const struct spi_device_id *id = spi_get_device_id(spi); 28 int hw_id = id->driver_data; 29 struct regmap *regmap; 30 31 regmap = devm_regmap_init_spi(spi, &st_lsm6dsx_spi_regmap_config); 32 if (IS_ERR(regmap)) { 33 dev_err(&spi->dev, "Failed to register spi regmap %d\n", 34 (int)PTR_ERR(regmap)); 35 return PTR_ERR(regmap); 36 } 37 38 return st_lsm6dsx_probe(&spi->dev, spi->irq, hw_id, regmap); 39 } 40 41 static const struct of_device_id st_lsm6dsx_spi_of_match[] = { 42 { 43 .compatible = "st,lsm6ds3", 44 .data = (void *)ST_LSM6DS3_ID, 45 }, 46 { 47 .compatible = "st,lsm6ds3h", 48 .data = (void *)ST_LSM6DS3H_ID, 49 }, 50 { 51 .compatible = "st,lsm6dsl", 52 .data = (void *)ST_LSM6DSL_ID, 53 }, 54 { 55 .compatible = "st,lsm6dsm", 56 .data = (void *)ST_LSM6DSM_ID, 57 }, 58 { 59 .compatible = "st,ism330dlc", 60 .data = (void *)ST_ISM330DLC_ID, 61 }, 62 { 63 .compatible = "st,lsm6dso", 64 .data = (void *)ST_LSM6DSO_ID, 65 }, 66 { 67 .compatible = "st,asm330lhh", 68 .data = (void *)ST_ASM330LHH_ID, 69 }, 70 { 71 .compatible = "st,lsm6dsox", 72 .data = (void *)ST_LSM6DSOX_ID, 73 }, 74 { 75 .compatible = "st,lsm6dsr", 76 .data = (void *)ST_LSM6DSR_ID, 77 }, 78 { 79 .compatible = "st,lsm6ds3tr-c", 80 .data = (void *)ST_LSM6DS3TRC_ID, 81 }, 82 { 83 .compatible = "st,ism330dhcx", 84 .data = (void *)ST_ISM330DHCX_ID, 85 }, 86 { 87 .compatible = "st,lsm9ds1-imu", 88 .data = (void *)ST_LSM9DS1_ID, 89 }, 90 {}, 91 }; 92 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match); 93 94 static const struct spi_device_id st_lsm6dsx_spi_id_table[] = { 95 { ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID }, 96 { ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID }, 97 { ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID }, 98 { ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID }, 99 { ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID }, 100 { ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID }, 101 { ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID }, 102 { ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID }, 103 { ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID }, 104 { ST_LSM6DS3TRC_DEV_NAME, ST_LSM6DS3TRC_ID }, 105 { ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID }, 106 { ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID }, 107 {}, 108 }; 109 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table); 110 111 static struct spi_driver st_lsm6dsx_driver = { 112 .driver = { 113 .name = "st_lsm6dsx_spi", 114 .pm = &st_lsm6dsx_pm_ops, 115 .of_match_table = of_match_ptr(st_lsm6dsx_spi_of_match), 116 }, 117 .probe = st_lsm6dsx_spi_probe, 118 .id_table = st_lsm6dsx_spi_id_table, 119 }; 120 module_spi_driver(st_lsm6dsx_driver); 121 122 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>"); 123 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); 124 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx spi driver"); 125 MODULE_LICENSE("GPL v2"); 126