Re: [PATCH 0/9] iio mount matrix - revitalize missing bindings documentation and provide code for bmc150, bmg160, bma180, itg3200, hmc584x

From: Andy Shevchenko
Date: Wed Feb 20 2019 - 11:13:12 EST


On Wed, Feb 20, 2019 at 03:00:47PM +0100, H. Nikolaus Schaller wrote:
> 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.

Thanks for the patch, overall good stuff there.
Couple of things, though:
- address my comments (consider them against entire series)
- check my patch I sent today to support this from ACPI

I wouldn't like to spread more drivers use specific of_foo_bar stuff where it's
easily to support everything (note: device_property_* calls supports software
fw nodes as well).

Perhaps, you may incorporate my patch into your nice series.

>
>
> H. Nikolaus Schaller (8):
> iio: bindings: clarifications for mount-matrix bindings
> iio: accel: bmc150: add mount matrix support
> iio: accel: bma180: add mount matrix support
> iio: accel: bma180: convert to devm
> 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
>
> Linus Walleij (1):
> iio: document bindings for mounting matrices
>
> .../devicetree/bindings/iio/mount-matrix.txt | 162 ++++++++++++++++++
> drivers/iio/accel/bma180.c | 70 ++++----
> drivers/iio/accel/bmc150-accel-core.c | 19 ++
> drivers/iio/gyro/bmg160_core.c | 19 ++
> drivers/iio/gyro/itg3200_core.c | 18 ++
> drivers/iio/magnetometer/bmc150_magn.c | 19 ++
> drivers/iio/magnetometer/hmc5843.h | 1 +
> drivers/iio/magnetometer/hmc5843_core.c | 14 ++
> include/linux/iio/gyro/itg3200.h | 1 +
> 9 files changed, 288 insertions(+), 35 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/iio/mount-matrix.txt
>
> --
> 2.19.1
>

--
With Best Regards,
Andy Shevchenko