diff options
| -rw-r--r-- | drivers/iio/common/st_sensors/st_sensors_i2c.c | 20 | ||||
| -rw-r--r-- | include/linux/iio/common/st_sensors_i2c.h | 9 |
2 files changed, 29 insertions, 0 deletions
diff --git a/drivers/iio/common/st_sensors/st_sensors_i2c.c b/drivers/iio/common/st_sensors/st_sensors_i2c.c index b43aa36031f8..c83df4dbfcd7 100644 --- a/drivers/iio/common/st_sensors/st_sensors_i2c.c +++ b/drivers/iio/common/st_sensors/st_sensors_i2c.c @@ -13,6 +13,7 @@ #include <linux/slab.h> #include <linux/iio/iio.h> #include <linux/of_device.h> +#include <linux/acpi.h> #include <linux/iio/common/st_sensors_i2c.h> @@ -107,6 +108,25 @@ void st_sensors_of_i2c_probe(struct i2c_client *client, EXPORT_SYMBOL(st_sensors_of_i2c_probe); #endif +#ifdef CONFIG_ACPI +int st_sensors_match_acpi_device(struct device *dev) +{ + const struct acpi_device_id *acpi_id; + kernel_ulong_t driver_data = 0; + + if (ACPI_HANDLE(dev)) { + acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!acpi_id) { + dev_err(dev, "No driver data\n"); + return -EINVAL; + } + driver_data = acpi_id->driver_data; + } + return driver_data; +} +EXPORT_SYMBOL(st_sensors_match_acpi_device); +#endif + MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); MODULE_DESCRIPTION("STMicroelectronics ST-sensors i2c driver"); MODULE_LICENSE("GPL v2"); diff --git a/include/linux/iio/common/st_sensors_i2c.h b/include/linux/iio/common/st_sensors_i2c.h index 1796af093368..254de3c7dde8 100644 --- a/include/linux/iio/common/st_sensors_i2c.h +++ b/include/linux/iio/common/st_sensors_i2c.h @@ -28,4 +28,13 @@ static inline void st_sensors_of_i2c_probe(struct i2c_client *client, } #endif +#ifdef CONFIG_ACPI +int st_sensors_match_acpi_device(struct device *dev); +#else +static inline int st_sensors_match_acpi_device(struct device *dev) +{ + return -ENODEV; +} +#endif + #endif /* ST_SENSORS_I2C_H */ |