linux-kernel - Re: [PATCH v10 0/6] Raspberry Pi Sense HAT driver

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Date:   Wed, 24 Aug 2022 08:17:40 -0400
From:   Charles Mirabile <cmirabil@...hat.com>
To:     Matthias Brugger <mbrugger@...e.com>
Cc:     linux-kernel <linux-kernel@...r.kernel.org>,
        Peter Robinson <pbrobinson@...il.com>,
        Serge Schneider <serge@...pberrypi.org>,
        Stefan Wahren <stefan.wahren@...e.com>,
        Nicolas Saenz Julienne <nicolassaenzj@...il.com>,
        linux-rpi-kernel@...ts.infradead.org,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        rh-kdlp@...glegroups.com, Joel Slebodnick <jslebodn@...hat.com>,
        Joel Savitz <jsavitz@...hat.com>
Subject: Re: [PATCH v10 0/6] Raspberry Pi Sense HAT driver

On Wed, Aug 24, 2022 at 7:28 AM Matthias Brugger <mbrugger@...e.com> wrote:
>
>
>
> On 23/08/2022 19:41, Charles Mirabile wrote:
> > This patch series adds a set of drivers for operating the Sense HAT
> > peripheral device. This board is an add on for the Raspberry Pi that is
> > designed to connect using the GPIO connector and communicate via I2C.
> >
> > It features:
> >       - a joystick
> >       - an 8x8 RGB LED matrix display
> >       - a whole bunch of environmental sensors with their own drivers
> >         (those are already in upstream Linux)
> >
> > This is a refactor of the work of Serge Schneider, the author of a
> > version of this driver that is currently in the Raspberry Pi downstream
> > kernel. We modified his code to make it suitable for upstream Linux.
> >
> > A couple of tests are available for the driver in the test folder in
> > this repo: https://github.com/underground-software/sensehat.git
> >       - sensehat_joystick_test logs the input events from the
> >         joystick to the console
> >       - sensehat_display_test displays various solid colors on
> >         the LED panel.
> >       - full_sensehat_test displays a single lit cell that can be
> >         moved with the joystick. Pressing the joystick ends the
> >         program.
> >
> > For more information about the Sense HAT, visit:
> > https://www.raspberrypi.org/products/sense-hat/
> >
> > Changes since v9:
> >       - The driver for the sensehat joystick was accepted upstream so
> >         it is no longer included in this patchset.
> >       - Some of the people involved in the development of earlier
> >         versions of these patches are no longer involved in the project
> >         so they have been removed from the list of maintainers and the
> >         patches.
>
> I'd would expect the patches to honor their involvement in the past, but if they
> are fine from being dropped, I will not object...
Since I am sending a v11 I will try to get in touch with them and see
if they want
to be involved and find proper emails (they no longer work at Red Hat).
I will also look into how much / to which parts of the code they
contributed and see
where it is appropriate to include them if they do want to be
included. I should have
done this before sending v10, but I didn't have the proper emails and
wasn't sure
about the correct etiquette.
>
> Regards,
> Matthias
>
> >       - The code is completely unchanged and so based on the discussions
> >         from version 9 of the patches, it should be ready to be merged.
> >
> > My appologies for the long delay between v9 and v10 especially given the
> > fact that there are no changes to the code. We appreciate the maintainers'
> > patience and guidance throughout all 10 versions of this sensehat patchset,
> > and we are excited for this driver to hopefully be fully accepted.
> >
> > Best - Charlie
> >
> > Co-developed-by: Joel Slebodnick <jslebodn@...hat.com>
> > Signed-off-by: Joel Slebodnick <jslebodn@...hat.com>
> > Co-developed-by: Joel Savitz <jsavitz@...hat.com>
> > Signed-off-by: Joel Savitz <jsavitz@...hat.com>
> > Signed-off-by: Charles Mirabile <cmirabil@...hat.com>
> >
> > Charles Mirabile (5):
> >    drivers/mfd: sensehat: Add Raspberry Pi Sense HAT to simple_mfd_i2c
> >    drivers/auxdisplay: sensehat: Raspberry Pi Sense HAT display driver
> >    dt-bindings: mfd: sensehat: Add Raspberry Pi Sense HAT schema
> >    MAINTAINERS: Add sensehat driver authors to MAINTAINERS
> >    DO NOT MERGE: full sensehat device tree overlay for raspberry pi 4
> >
> >   .../raspberrypi,sensehat-display.yaml         |  26 +++
> >   .../input/raspberrypi,sensehat-joystick.yaml  |  31 +++
> >   .../bindings/mfd/raspberrypi,sensehat.yaml    |  57 +++++
> >   MAINTAINERS                                   |  10 +
> >   drivers/auxdisplay/Kconfig                    |   8 +
> >   drivers/auxdisplay/Makefile                   |   1 +
> >   drivers/auxdisplay/sensehat-display.c         | 205 ++++++++++++++++++
> >   drivers/mfd/simple-mfd-i2c.c                  |   1 +
> >   sensehat.dtbs                                 |  52 +++++
> >   9 files changed, 391 insertions(+)
> >   create mode 100644 Documentation/devicetree/bindings/auxdisplay/raspberrypi,sensehat-display.yaml
> >   create mode 100644 Documentation/devicetree/bindings/input/raspberrypi,sensehat-joystick.yaml
> >   create mode 100644 Documentation/devicetree/bindings/mfd/raspberrypi,sensehat.yaml
> >   create mode 100644 drivers/auxdisplay/sensehat-display.c
> >   create mode 100644 sensehat.dtbs
> >
>