linux-kernel - Re: [PATCH v2 00/10] iio mount matrix - revitalize missing bindings documentation and provide code for bmc150, bmg160, bma180, itg3200, hmc584x

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Date:   Fri, 22 Feb 2019 16:48:14 +0200
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>,
        Song Qiang <songqiang1304521@...il.com>,
        Jean-Baptiste Maneyrol <jmaneyrol@...ensense.com>,
        Martin Kelly <mkelly@...o.com>,
        Jonathan Marek <jonathan@...ek.ca>,
        Brian Masney <masneyb@...tation.org>,
        Stephan Gerhold <stephan@...hold.net>,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>, Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio <linux-iio@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 00/10] iio mount matrix - revitalize missing bindings
 documentation and provide code for bmc150, bmg160, bma180, itg3200, hmc584x

On Thu, Feb 21, 2019 at 7:04 PM H. Nikolaus Schaller <hns@...delico.com> wrote:
>
> Fixes V2:
> * make get_mount_matrix() functions more readable (use temp variable)
>   (suggested by Jonathan and Andy)
> * add these readability improvements also for ak8975 and mpu6050
>   (suggested by Jonathan and Andy)
> * squash bindings documentation into single commit for better discussion
>   (suggested by Linus)
> * FOR DISCUSSION: add some more clarifications to the bindings documentation
>   and an attempt to define the magnetometer orientation
> * add "iio: Allow to read mount matrix from ACPI" to the beginning of
>   the series to make it compile
>   (suggested by Andy)
> * replace of_iio_read_mount_matrix() by iio_read_mount_matrix()
>   (required by "iio: Allow to read mount matrix from ACPI")
> * drop patch to convert bma180 to devm (potential race)
>   (suggested by Jonathan)
>
> PATCH V1 2019-02-20 15:01:02:
> This patch series adds the mount-matrix to several iio sensor drivers
> used in handheld devices.
>
> The mount-matrix translates the quite arbitrary orientation of the sensor
> on some printed circuit board to user-tangible orientation in handheld
> devices that relates to typical screen orientation.
>
> There was a bindings documentation by Linus Walleij but the patch
> did not make it into mainline. Therefore I resend it here.
>
> Next I have added some clarifications (at least I hope it clarifies)
> in a second patch.
>
> Finally, the patch set implements the hooks for the mount matrix
> in several iio drivers: bmc150, bma180, bmg160, itg3200, hmc5843.
> This includes also one patch for the bma180 to convert it to devm API.
>
> We use them in different variants of the omap3-gta04 so a separate
> patch set will provide device tree additions for them.
>

Thank you, it looks nice.
FWIW,
Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>


>
> Andy Shevchenko (1):
>   iio: Allow to read mount matrix from ACPI
>
> H. Nikolaus Schaller (8):
>   iio: accel: bmc150: add mount matrix support
>   iio: accel: bma180: add mount matrix support
>   iio: gyro: bmg160: add mount matrix support
>   iio: gyro: itg3200: add mount matrix support
>   iio: magnetometer: bmc150: add mount matrix support
>   iio: magnetometer: hmc5843: add mount matrix support
>   iio: mpu6050: improve code readability
>   iio: ak8975: improve code readability
>
> Linus Walleij (1):
>   iio: document bindings for mounting matrices
>
>  .../devicetree/bindings/iio/mount-matrix.txt  | 204 ++++++++++++++++++
>  drivers/iio/accel/bma180.c                    |  18 +-
>  drivers/iio/accel/bmc150-accel-core.c         |  21 ++
>  drivers/iio/accel/kxsd9.c                     |   4 +-
>  drivers/iio/gyro/bmg160_core.c                |  21 ++
>  drivers/iio/gyro/itg3200_core.c               |  20 ++
>  drivers/iio/gyro/mpu3050-core.c               |   3 +-
>  drivers/iio/imu/inv_mpu6050/inv_mpu_core.c    |  10 +-
>  drivers/iio/industrialio-core.c               |  46 ++--
>  drivers/iio/magnetometer/ak8974.c             |   5 +-
>  drivers/iio/magnetometer/ak8975.c             |  13 +-
>  drivers/iio/magnetometer/bmc150_magn.c        |  21 ++
>  drivers/iio/magnetometer/hmc5843.h            |   1 +
>  drivers/iio/magnetometer/hmc5843_core.c       |  20 +-
>  include/linux/iio/gyro/itg3200.h              |   1 +
>  include/linux/iio/iio.h                       |   4 +-
>  16 files changed, 361 insertions(+), 51 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/iio/mount-matrix.txt
>
> --
> 2.19.1
>


-- 
With Best Regards,
Andy Shevchenko