linux-kernel - Re: [PATCH v3 0/2] hwmon: Add StarFive JH7100 temperature sensor

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Date:   Wed, 28 Jul 2021 19:05:47 +0200
From:   Emil Renner Berthing <kernel@...il.dk>
To:     Guenter Roeck <linux@...ck-us.net>,
        Drew Fustini <drew@...gleboard.org>
Cc:     Jean Delvare <jdelvare@...e.com>, Rob Herring <robh+dt@...nel.org>,
        Jonathan Corbet <corbet@....net>,
        Samin Guo <samin.guo@...rfivetech.com>,
        linux-hwmon@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, linux-doc@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/2] hwmon: Add StarFive JH7100 temperature sensor

On Wed, 28 Jul 2021 at 18:54, Guenter Roeck <linux@...ck-us.net> wrote:
> On 7/26/21 10:18 AM, Emil Renner Berthing wrote:
> > This adds a driver for the temperature sensor on the JH7100, a RISC-V
> > SoC by StarFive Technology Co. Ltd., and most likely also the upcoming
> > JH7110 version.
> >
> > The SoC is used on the BeagleV Starlight board:
> > https://github.com/beagleboard/beaglev-starlight
> >
> > Support for this SoC is not yet upstreamed, but is actively worked on,
> > so it should only be a matter of time before that happens.
> >
>
> Hmm, makes me wonder if I should apply the series now or later,
> when the chip is actually supported by the kernel. Comments/thoughts ?
>
> Guenter

I'd of course love if it was applied now. That would at least mean
fewer patches to rebase when keeping the beaglev patches [1] up to
date, and I'd be very surprised if SoC support doesn't make it
upstream eventually. But I'd also fully understand the position that
this only makes sense to add when support for the SoC is upstream too.
I'm adding Drew, as he might have something to say about this.

[1]: https://github.com/starfive-tech/linux/tree/beaglev

/Emil

> > v3:
> > * Handle timeouts from wait_for_completion_interruptible_timeout
> >    properly.
> >
> > v2:
> > * Fix checkpatch.pl --strict warnings
> >    - Add myself to MAINTAINERS
> >    - Fix multiline comments
> >    - Use proper case and whitespace for #defines
> >    - Add comment to sfctemp::lock mutex.
> > * Remaining comments by Guenter Roeck
> >    - Add Documentation/hwmon/sfctemp.rst
> >    - Use devm_add_action() and devm_hwmon_device_register_with_info()
> >      instead of a driver .remove function.
> >    - Don't do test conversion at probe time.
> >    - #include <linux/io.h>
> >    - Remove unused #defines
> >    - Use int return variable in sfctemp_convert().
> > * Add Samin's Signed-off-by to patch 2/2
> >
> > Emil Renner Berthing (2):
> >    dt-bindings: hwmon: add starfive,jh7100-temp bindings
> >    hwmon: (sfctemp) Add StarFive JH7100 temperature sensor
> >
> >   .../bindings/hwmon/starfive,jh7100-temp.yaml  |  43 +++
> >   Documentation/hwmon/index.rst                 |   1 +
> >   Documentation/hwmon/sfctemp.rst               |  32 ++
> >   MAINTAINERS                                   |   8 +
> >   drivers/hwmon/Kconfig                         |  10 +
> >   drivers/hwmon/Makefile                        |   1 +
> >   drivers/hwmon/sfctemp.c                       | 291 ++++++++++++++++++
> >   7 files changed, 386 insertions(+)
> >   create mode 100644 Documentation/devicetree/bindings/hwmon/starfive,jh7100-temp.yaml
> >   create mode 100644 Documentation/hwmon/sfctemp.rst
> >   create mode 100644 drivers/hwmon/sfctemp.c
> >
>