| /* |
| * STMicroelectronics magnetometers driver |
| * |
| * Copyright 2012-2013 STMicroelectronics Inc. |
| * |
| * Denis Ciocca <denis.ciocca@st.com> |
| * |
| * Licensed under the GPL-2. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/spi/spi.h> |
| #include <linux/iio/iio.h> |
| |
| #include <linux/iio/common/st_sensors.h> |
| #include <linux/iio/common/st_sensors_spi.h> |
| #include "st_magn.h" |
| |
| #ifdef CONFIG_OF |
| /* |
| * For new single-chip sensors use <device_name> as compatible string. |
| * For old single-chip devices keep <device_name>-magn to maintain |
| * compatibility |
| * For multi-chip devices, use <device_name>-magn to distinguish which |
| * capability is being used |
| */ |
| static const struct of_device_id st_magn_of_match[] = { |
| { |
| .compatible = "st,lis3mdl-magn", |
| .data = LIS3MDL_MAGN_DEV_NAME, |
| }, |
| { |
| .compatible = "st,lsm303agr-magn", |
| .data = LSM303AGR_MAGN_DEV_NAME, |
| }, |
| { |
| .compatible = "st,lis2mdl", |
| .data = LIS2MDL_MAGN_DEV_NAME, |
| }, |
| { |
| .compatible = "st,lsm9ds1-magn", |
| .data = LSM9DS1_MAGN_DEV_NAME, |
| }, |
| {} |
| }; |
| MODULE_DEVICE_TABLE(of, st_magn_of_match); |
| #else |
| #define st_magn_of_match NULL |
| #endif |
| |
| static int st_magn_spi_probe(struct spi_device *spi) |
| { |
| struct iio_dev *indio_dev; |
| struct st_sensor_data *mdata; |
| int err; |
| |
| indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*mdata)); |
| if (!indio_dev) |
| return -ENOMEM; |
| |
| mdata = iio_priv(indio_dev); |
| |
| st_sensors_of_name_probe(&spi->dev, st_magn_of_match, |
| spi->modalias, sizeof(spi->modalias)); |
| st_sensors_spi_configure(indio_dev, spi, mdata); |
| |
| err = st_magn_common_probe(indio_dev); |
| if (err < 0) |
| return err; |
| |
| return 0; |
| } |
| |
| static int st_magn_spi_remove(struct spi_device *spi) |
| { |
| struct iio_dev *indio_dev = spi_get_drvdata(spi); |
| st_magn_common_remove(indio_dev); |
| |
| return 0; |
| } |
| |
| static const struct spi_device_id st_magn_id_table[] = { |
| { LIS3MDL_MAGN_DEV_NAME }, |
| { LSM303AGR_MAGN_DEV_NAME }, |
| { LIS2MDL_MAGN_DEV_NAME }, |
| { LSM9DS1_MAGN_DEV_NAME }, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(spi, st_magn_id_table); |
| |
| static struct spi_driver st_magn_driver = { |
| .driver = { |
| .name = "st-magn-spi", |
| .of_match_table = of_match_ptr(st_magn_of_match), |
| }, |
| .probe = st_magn_spi_probe, |
| .remove = st_magn_spi_remove, |
| .id_table = st_magn_id_table, |
| }; |
| module_spi_driver(st_magn_driver); |
| |
| MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); |
| MODULE_DESCRIPTION("STMicroelectronics magnetometers spi driver"); |
| MODULE_LICENSE("GPL v2"); |