diff options
Diffstat (limited to 'drivers/iio/accel/st_accel_i2c.c')
-rw-r--r-- | drivers/iio/accel/st_accel_i2c.c | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c new file mode 100644 index 000000000..b314ef878 --- /dev/null +++ b/drivers/iio/accel/st_accel_i2c.c @@ -0,0 +1,189 @@ +/* + * STMicroelectronics accelerometers 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/acpi.h> +#include <linux/i2c.h> +#include <linux/iio/iio.h> +#include <linux/property.h> + +#include <linux/iio/common/st_sensors_i2c.h> +#include "st_accel.h" + +#ifdef CONFIG_OF +static const struct of_device_id st_accel_of_match[] = { + { + /* An older compatible */ + .compatible = "st,lis3lv02d", + .data = LIS3LV02DL_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lis3lv02dl-accel", + .data = LIS3LV02DL_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm303dlh-accel", + .data = LSM303DLH_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm303dlhc-accel", + .data = LSM303DLHC_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lis3dh-accel", + .data = LIS3DH_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm330d-accel", + .data = LSM330D_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm330dl-accel", + .data = LSM330DL_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm330dlc-accel", + .data = LSM330DLC_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lis331dl-accel", + .data = LIS331DL_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lis331dlh-accel", + .data = LIS331DLH_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm303dl-accel", + .data = LSM303DL_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm303dlm-accel", + .data = LSM303DLM_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm330-accel", + .data = LSM330_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lsm303agr-accel", + .data = LSM303AGR_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lis2dh12-accel", + .data = LIS2DH12_ACCEL_DEV_NAME, + }, + { + .compatible = "st,h3lis331dl-accel", + .data = H3LIS331DL_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lis3l02dq", + .data = LIS3L02DQ_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lng2dm-accel", + .data = LNG2DM_ACCEL_DEV_NAME, + }, + { + .compatible = "st,lis2dw12", + .data = LIS2DW12_ACCEL_DEV_NAME, + }, + {}, +}; +MODULE_DEVICE_TABLE(of, st_accel_of_match); +#else +#define st_accel_of_match NULL +#endif + +#ifdef CONFIG_ACPI +static const struct acpi_device_id st_accel_acpi_match[] = { + {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME}, + {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME}, + { }, +}; +MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match); +#else +#define st_accel_acpi_match NULL +#endif + +static const struct i2c_device_id st_accel_id_table[] = { + { LSM303DLH_ACCEL_DEV_NAME }, + { LSM303DLHC_ACCEL_DEV_NAME }, + { LIS3DH_ACCEL_DEV_NAME }, + { LSM330D_ACCEL_DEV_NAME }, + { LSM330DL_ACCEL_DEV_NAME }, + { LSM330DLC_ACCEL_DEV_NAME }, + { LIS331DLH_ACCEL_DEV_NAME }, + { LSM303DL_ACCEL_DEV_NAME }, + { LSM303DLM_ACCEL_DEV_NAME }, + { LSM330_ACCEL_DEV_NAME }, + { LSM303AGR_ACCEL_DEV_NAME }, + { LIS2DH12_ACCEL_DEV_NAME }, + { LIS3L02DQ_ACCEL_DEV_NAME }, + { LNG2DM_ACCEL_DEV_NAME }, + { H3LIS331DL_ACCEL_DEV_NAME }, + { LIS331DL_ACCEL_DEV_NAME }, + { LIS3LV02DL_ACCEL_DEV_NAME }, + { LIS2DW12_ACCEL_DEV_NAME }, + {}, +}; +MODULE_DEVICE_TABLE(i2c, st_accel_id_table); + +static int st_accel_i2c_probe(struct i2c_client *client) +{ + struct iio_dev *indio_dev; + struct st_sensor_data *adata; + const char *match; + int ret; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata)); + if (!indio_dev) + return -ENOMEM; + + adata = iio_priv(indio_dev); + + match = device_get_match_data(&client->dev); + if (match) + strlcpy(client->name, match, sizeof(client->name)); + + st_sensors_i2c_configure(indio_dev, client, adata); + + ret = st_accel_common_probe(indio_dev); + if (ret < 0) + return ret; + + return 0; +} + +static int st_accel_i2c_remove(struct i2c_client *client) +{ + st_accel_common_remove(i2c_get_clientdata(client)); + + return 0; +} + +static struct i2c_driver st_accel_driver = { + .driver = { + .name = "st-accel-i2c", + .of_match_table = of_match_ptr(st_accel_of_match), + .acpi_match_table = ACPI_PTR(st_accel_acpi_match), + }, + .probe_new = st_accel_i2c_probe, + .remove = st_accel_i2c_remove, + .id_table = st_accel_id_table, +}; +module_i2c_driver(st_accel_driver); + +MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); +MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver"); +MODULE_LICENSE("GPL v2"); |