linux-kernel - Re: [PATCH v4 0/3] add custom hinge sensor support

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Date:   Wed, 30 Dec 2020 12:05:17 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Ye Xiang <xiang.ye@...el.com>
Cc:     jikos@...nel.org, srinivas.pandruvada@...ux.intel.com,
        linux-input@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 0/3] add custom hinge sensor support

On Tue, 15 Dec 2020 13:44:41 +0800
Ye Xiang <xiang.ye@...el.com> wrote:

> Here we register one iio device with three channels which present angle for
> hinge, keyboard and screen.
> 
> 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.

Other than those minor bits I'm happy to fix up in patch 2, this looks
good to me.  However, I'll need a Jiri Ack for the hid parts before
I apply it.  We are are early in this cycle, so no great rush given
the usual xmas slow down!

Thanks,

Jonathan

> 
> Changes since v3:
>   - hid-sensor-custom: remove sensor_inst::custom_pdev_exposed.
>   - hid-sensor-custom: use static buf, w_buf to avoid using goto in 
>     get_known_custom_sensor_index.
>   - hid-sensor-custom-intel-hinge: use devm_ prefix function instead.
>   - sysfs-bus-iio: put in_anglY_raw together with in_angl_raw.
> 
> 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       |  11 +
>  drivers/hid/hid-sensor-custom.c               | 143 +++++++
>  .../hid-sensors/hid-sensor-attributes.c       |   2 +
>  drivers/iio/position/Kconfig                  |  16 +
>  drivers/iio/position/Makefile                 |   1 +
>  .../position/hid-sensor-custom-intel-hinge.c  | 391 ++++++++++++++++++
>  include/linux/hid-sensor-ids.h                |  14 +
>  7 files changed, 578 insertions(+)
>  create mode 100644 drivers/iio/position/hid-sensor-custom-intel-hinge.c
>