Re: add custom hinge sensor support

[Srinivas Pandruvada]

On Thu, 2020-12-03 at 11:53 +0800, Ye Xiang wrote:
> Here three separate iio devices are presented which presents angle
> for
> hinge, keyboard and screen.
You are presenting one IIO device now with three channels.

> 
> This driver works on devices with Intel integrated sensor hub, where
> hinge sensor is presented using a custom sensor usage id.
> 
> Here the angle is presented in degrees, which is converted to
> radians.
> 
> Changes since v2:
>   - use 1 iio device instead of 3 for hinge sensor.
>   - use indexed channel instead of modified channel and added channel
>     labels.
>   - remove 2,3 patch in last version, add a document patch to
> describe the
>     hinge channels.
>   - hid-sensor-custom: use meaningful return value in 
>     get_known_custom_sensor_index and checked in call side.
>   - hid-sensor-ids.h: use HID_USAGE_SENSOR_DATA_FIELD_CUSTOM_VALUE(x)
> to 
>     define custom sensor value.
> 
> Changes since v1:
>   - fixed errors reported by lkp
> 
> Ye Xiang (3):
>   HID: hid-sensor-custom: Add custom sensor iio support
>   iio: hid-sensors: Add hinge sensor driver
>   iio:Documentation: Add documentation for hinge sensor channels
> 
>  Documentation/ABI/testing/sysfs-bus-iio       |  17 +
>  drivers/hid/hid-sensor-custom.c               | 181 ++++++++
>  .../hid-sensors/hid-sensor-attributes.c       |   2 +
>  drivers/iio/position/Kconfig                  |  16 +
>  drivers/iio/position/Makefile                 |   1 +
>  .../position/hid-sensor-custom-intel-hinge.c  | 393
> ++++++++++++++++++
>  include/linux/hid-sensor-ids.h                |  14 +
>  7 files changed, 624 insertions(+)
>  create mode 100644 drivers/iio/position/hid-sensor-custom-intel-
> hinge.c
>