diff options
Diffstat (limited to 'drivers/iio/accel/st_accel_i2c.c')
| -rw-r--r-- | drivers/iio/accel/st_accel_i2c.c | 78 |
1 files changed, 54 insertions, 24 deletions
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c index c0f8867aa1ea..543f0ad7fd7e 100644 --- a/drivers/iio/accel/st_accel_i2c.c +++ b/drivers/iio/accel/st_accel_i2c.c @@ -11,6 +11,7 @@ #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> @@ -21,6 +22,11 @@ #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, }, @@ -95,25 +101,67 @@ MODULE_DEVICE_TABLE(of, st_accel_of_match); #define st_accel_of_match NULL #endif +#ifdef CONFIG_ACPI +static const struct acpi_device_id st_accel_acpi_match[] = { + {"SMO8A90", LNG2DM}, + { }, +}; +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, LSM303DLH }, + { LSM303DLHC_ACCEL_DEV_NAME, LSM303DLHC }, + { LIS3DH_ACCEL_DEV_NAME, LIS3DH }, + { LSM330D_ACCEL_DEV_NAME, LSM330D }, + { LSM330DL_ACCEL_DEV_NAME, LSM330DL }, + { LSM330DLC_ACCEL_DEV_NAME, LSM330DLC }, + { LIS331DLH_ACCEL_DEV_NAME, LIS331DLH }, + { LSM303DL_ACCEL_DEV_NAME, LSM303DL }, + { LSM303DLM_ACCEL_DEV_NAME, LSM303DLM }, + { LSM330_ACCEL_DEV_NAME, LSM330 }, + { LSM303AGR_ACCEL_DEV_NAME, LSM303AGR }, + { LIS2DH12_ACCEL_DEV_NAME, LIS2DH12 }, + { LIS3L02DQ_ACCEL_DEV_NAME, LIS3L02DQ }, + { LNG2DM_ACCEL_DEV_NAME, LNG2DM }, + {}, +}; +MODULE_DEVICE_TABLE(i2c, st_accel_id_table); + static int st_accel_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct iio_dev *indio_dev; struct st_sensor_data *adata; - int err; + int ret; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata)); if (!indio_dev) return -ENOMEM; adata = iio_priv(indio_dev); - st_sensors_of_i2c_probe(client, st_accel_of_match); + + if (client->dev.of_node) { + st_sensors_of_i2c_probe(client, st_accel_of_match); + } else if (ACPI_HANDLE(&client->dev)) { + ret = st_sensors_match_acpi_device(&client->dev); + if ((ret < 0) || (ret >= ST_ACCEL_MAX)) + return -ENODEV; + + strncpy(client->name, st_accel_id_table[ret].name, + sizeof(client->name)); + client->name[sizeof(client->name) - 1] = '\0'; + } else if (!id) + return -ENODEV; + st_sensors_i2c_configure(indio_dev, client, adata); - err = st_accel_common_probe(indio_dev); - if (err < 0) - return err; + ret = st_accel_common_probe(indio_dev); + if (ret < 0) + return ret; return 0; } @@ -125,29 +173,11 @@ static int st_accel_i2c_remove(struct i2c_client *client) return 0; } -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 }, - {}, -}; -MODULE_DEVICE_TABLE(i2c, st_accel_id_table); - 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 = st_accel_i2c_probe, .remove = st_accel_i2c_remove, |