If an object can be considered close to the device that has the proximity sensor built in is hardware dependent. Allowing to configure the property via device tree allows to export this device specific value to userspace via ext_info. This is useful for e.g. iio-sensor-proxy. This came up when adding proximity support to iio-sensor-proxy [1], [2], it is not meant as a vcnl4000 thing but rather as something useful for other proximity sensors too in the future. I've not converted the vcnl4000 binding docs to yaml but can do so as part of this series in a v2 if the approach makes sense. [1]: https://gitlab.freedesktop.org/hadess/iio-sensor-proxy/merge_requests/298 [2]: https://lore.kernel.org/linux-iio/20200210154153.GA26903@xxxxxxxxxxxxxxxxxxx/ Guido Günther (2): iio: vcnl4000: Export near level property for proximity sensor dt-bindings: iio: light: vcnl4000: Add near-level .../bindings/iio/light/vcnl4000.txt | 6 +++++ drivers/iio/light/vcnl4000.c | 26 +++++++++++++++++++ 2 files changed, 32 insertions(+) -- 2.23.0
