diff options
Diffstat (limited to 'drivers/iio/common/st_sensors/st_sensors_core.c')
| -rw-r--r-- | drivers/iio/common/st_sensors/st_sensors_core.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c index 6e6a1ecc99dd..d99bb1460fe2 100644 --- a/drivers/iio/common/st_sensors/st_sensors_core.c +++ b/drivers/iio/common/st_sensors/st_sensors_core.c @@ -15,6 +15,7 @@ #include <linux/iio/iio.h> #include <linux/regulator/consumer.h> #include <linux/of.h> +#include <linux/of_device.h> #include <asm/unaligned.h> #include <linux/iio/common/st_sensors.h> @@ -345,6 +346,36 @@ static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev, return pdata; } + +/** + * st_sensors_of_name_probe() - device tree probe for ST sensor name + * @dev: driver model representation of the device. + * @match: the OF match table for the device, containing compatible strings + * but also a .data field with the corresponding internal kernel name + * used by this sensor. + * @name: device name buffer reference. + * @len: device name buffer length. + * + * In effect this function matches a compatible string to an internal kernel + * name for a certain sensor device, so that the rest of the autodetection can + * rely on that name from this point on. I2C/SPI devices will be renamed + * to match the internal kernel convention. + */ +void st_sensors_of_name_probe(struct device *dev, + const struct of_device_id *match, + char *name, int len) +{ + const struct of_device_id *of_id; + + of_id = of_match_device(match, dev); + if (!of_id || !of_id->data) + return; + + /* The name from the OF match takes precedence if present */ + strncpy(name, of_id->data, len); + name[len - 1] = '\0'; +} +EXPORT_SYMBOL(st_sensors_of_name_probe); #else static struct st_sensors_platform_data *st_sensors_of_probe(struct device *dev, struct st_sensors_platform_data *defdata) |