iio/accel/st_accel_i2c.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 /*
0003  * STMicroelectronics accelerometers driver
0004  *
0005  * Copyright 2012-2013 STMicroelectronics Inc.
0006  *
0007  * Denis Ciocca <denis.ciocca@st.com>
0008  */
0009
0010 #include <linux/kernel.h>
0011 #include <linux/module.h>
0012 #include <linux/mod_devicetable.h>
0013 #include <linux/acpi.h>
0014 #include <linux/i2c.h>
0015 #include <linux/iio/iio.h>
0016
0017 #include <linux/iio/common/st_sensors_i2c.h>
0018 #include "st_accel.h"
0019
0020 static const struct of_device_id st_accel_of_match[] = {
0021     {
0022         /* An older compatible */
0023         .compatible = "st,lis3lv02d",
0024         .data = LIS3LV02DL_ACCEL_DEV_NAME,
0025     },
0026     {
0027         .compatible = "st,lis3lv02dl-accel",
0028         .data = LIS3LV02DL_ACCEL_DEV_NAME,
0029     },
0030     {
0031         .compatible = "st,lsm303dlh-accel",
0032         .data = LSM303DLH_ACCEL_DEV_NAME,
0033     },
0034     {
0035         .compatible = "st,lsm303dlhc-accel",
0036         .data = LSM303DLHC_ACCEL_DEV_NAME,
0037     },
0038     {
0039         .compatible = "st,lis3dh-accel",
0040         .data = LIS3DH_ACCEL_DEV_NAME,
0041     },
0042     {
0043         .compatible = "st,lsm330d-accel",
0044         .data = LSM330D_ACCEL_DEV_NAME,
0045     },
0046     {
0047         .compatible = "st,lsm330dl-accel",
0048         .data = LSM330DL_ACCEL_DEV_NAME,
0049     },
0050     {
0051         .compatible = "st,lsm330dlc-accel",
0052         .data = LSM330DLC_ACCEL_DEV_NAME,
0053     },
0054     {
0055         .compatible = "st,lis331dl-accel",
0056         .data = LIS331DL_ACCEL_DEV_NAME,
0057     },
0058     {
0059         .compatible = "st,lis331dlh-accel",
0060         .data = LIS331DLH_ACCEL_DEV_NAME,
0061     },
0062     {
0063         .compatible = "st,lsm303dl-accel",
0064         .data = LSM303DL_ACCEL_DEV_NAME,
0065     },
0066     {
0067         .compatible = "st,lsm303dlm-accel",
0068         .data = LSM303DLM_ACCEL_DEV_NAME,
0069     },
0070     {
0071         .compatible = "st,lsm330-accel",
0072         .data = LSM330_ACCEL_DEV_NAME,
0073     },
0074     {
0075         .compatible = "st,lsm303agr-accel",
0076         .data = LSM303AGR_ACCEL_DEV_NAME,
0077     },
0078     {
0079         .compatible = "st,lis2dh12-accel",
0080         .data = LIS2DH12_ACCEL_DEV_NAME,
0081     },
0082     {
0083         .compatible = "st,h3lis331dl-accel",
0084         .data = H3LIS331DL_ACCEL_DEV_NAME,
0085     },
0086     {
0087         .compatible = "st,lis3l02dq",
0088         .data = LIS3L02DQ_ACCEL_DEV_NAME,
0089     },
0090     {
0091         .compatible = "st,lng2dm-accel",
0092         .data = LNG2DM_ACCEL_DEV_NAME,
0093     },
0094     {
0095         .compatible = "st,lis2dw12",
0096         .data = LIS2DW12_ACCEL_DEV_NAME,
0097     },
0098     {
0099         .compatible = "st,lis3de",
0100         .data = LIS3DE_ACCEL_DEV_NAME,
0101     },
0102     {
0103         .compatible = "st,lis2de12",
0104         .data = LIS2DE12_ACCEL_DEV_NAME,
0105     },
0106     {
0107         .compatible = "st,lis2hh12",
0108         .data = LIS2HH12_ACCEL_DEV_NAME,
0109     },
0110     {
0111         .compatible = "st,lis302dl",
0112         .data = LIS302DL_ACCEL_DEV_NAME,
0113     },
0114     {
0115         .compatible = "silan,sc7a20",
0116         .data = SC7A20_ACCEL_DEV_NAME,
0117     },
0118     {},
0119 };
0120 MODULE_DEVICE_TABLE(of, st_accel_of_match);
0121
0122 #ifdef CONFIG_ACPI
0123 static const struct acpi_device_id st_accel_acpi_match[] = {
0124     {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
0125     {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
0126     { },
0127 };
0128 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
0129 #endif
0130
0131 static const struct i2c_device_id st_accel_id_table[] = {
0132     { LSM303DLH_ACCEL_DEV_NAME },
0133     { LSM303DLHC_ACCEL_DEV_NAME },
0134     { LIS3DH_ACCEL_DEV_NAME },
0135     { LSM330D_ACCEL_DEV_NAME },
0136     { LSM330DL_ACCEL_DEV_NAME },
0137     { LSM330DLC_ACCEL_DEV_NAME },
0138     { LIS331DLH_ACCEL_DEV_NAME },
0139     { LSM303DL_ACCEL_DEV_NAME },
0140     { LSM303DLM_ACCEL_DEV_NAME },
0141     { LSM330_ACCEL_DEV_NAME },
0142     { LSM303AGR_ACCEL_DEV_NAME },
0143     { LIS2DH12_ACCEL_DEV_NAME },
0144     { LIS3L02DQ_ACCEL_DEV_NAME },
0145     { LNG2DM_ACCEL_DEV_NAME },
0146     { H3LIS331DL_ACCEL_DEV_NAME },
0147     { LIS331DL_ACCEL_DEV_NAME },
0148     { LIS3LV02DL_ACCEL_DEV_NAME },
0149     { LIS2DW12_ACCEL_DEV_NAME },
0150     { LIS3DE_ACCEL_DEV_NAME },
0151     { LIS2DE12_ACCEL_DEV_NAME },
0152     { LIS2HH12_ACCEL_DEV_NAME },
0153     { LIS302DL_ACCEL_DEV_NAME },
0154     { SC7A20_ACCEL_DEV_NAME },
0155     {},
0156 };
0157 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
0158
0159 static int st_accel_i2c_probe(struct i2c_client *client)
0160 {
0161     const struct st_sensor_settings *settings;
0162     struct st_sensor_data *adata;
0163     struct iio_dev *indio_dev;
0164     int ret;
0165
0166     st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
0167
0168     settings = st_accel_get_settings(client->name);
0169     if (!settings) {
0170         dev_err(&client->dev, "device name %s not recognized.\n",
0171             client->name);
0172         return -ENODEV;
0173     }
0174
0175     indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
0176     if (!indio_dev)
0177         return -ENOMEM;
0178
0179     adata = iio_priv(indio_dev);
0180     adata->sensor_settings = (struct st_sensor_settings *)settings;
0181
0182     ret = st_sensors_i2c_configure(indio_dev, client);
0183     if (ret < 0)
0184         return ret;
0185
0186     ret = st_sensors_power_enable(indio_dev);
0187     if (ret)
0188         return ret;
0189
0190     return st_accel_common_probe(indio_dev);
0191 }
0192
0193 static struct i2c_driver st_accel_driver = {
0194     .driver = {
0195         .name = "st-accel-i2c",
0196         .of_match_table = st_accel_of_match,
0197         .acpi_match_table = ACPI_PTR(st_accel_acpi_match),
0198     },
0199     .probe_new = st_accel_i2c_probe,
0200     .id_table = st_accel_id_table,
0201 };
0202 module_i2c_driver(st_accel_driver);
0203
0204 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
0205 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
0206 MODULE_LICENSE("GPL v2");
0207 MODULE_IMPORT_NS(IIO_ST_SENSORS);