From 2d7768a872b73a7105d6355948dae0acff72f061 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Thu, 7 Aug 2014 08:16:00 +0100 Subject: iio: st_sensors: add devicetree probing support The I2C devices that make up the STMicroelectronics MEMS sensors may be sneakily enabled by cleverly giving the device node the same name as a string match from the platform device ID table. However the right method is to use the compatible string. On detection, the ST sensors use the ID string to probe and instatiate the right sensor driver, so pass the kernel-internal ID string in the .data field of the OF match table, and set the I2C client name to this name when a compatible match is used. This avoids having misc Linux-specific strings floating around in the device tree. Cc: Lee Jones Cc: Denis CIOCCA Signed-off-by: Linus Walleij Signed-off-by: Jonathan Cameron --- include/linux/iio/common/st_sensors_i2c.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux/iio/common') diff --git a/include/linux/iio/common/st_sensors_i2c.h b/include/linux/iio/common/st_sensors_i2c.h index 67d845385ae2..1796af093368 100644 --- a/include/linux/iio/common/st_sensors_i2c.h +++ b/include/linux/iio/common/st_sensors_i2c.h @@ -13,8 +13,19 @@ #include #include +#include void st_sensors_i2c_configure(struct iio_dev *indio_dev, struct i2c_client *client, struct st_sensor_data *sdata); +#ifdef CONFIG_OF +void st_sensors_of_i2c_probe(struct i2c_client *client, + const struct of_device_id *match); +#else +static inline void st_sensors_of_i2c_probe(struct i2c_client *client, + const struct of_device_id *match) +{ +} +#endif + #endif /* ST_SENSORS_I2C_H */ -- cgit v1.2.3