linux-kernel - Re: [PATCH v3 4/6] riscv: dts: sifive unmatched: Expose the FU740 core supply regulator

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Date:   Sun, 19 Dec 2021 16:14:23 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Heiko Stübner <heiko@...ech.de>
Cc:     Vincent Pelletier <plr.vincent@...il.com>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        qiuwenbo@...inos.com.cn, devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        David Abdurachmanov <david.abdurachmanov@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>
Subject: Re: [PATCH v3 4/6] riscv: dts: sifive unmatched: Expose the FU740
 core supply regulator

On Sun, Dec 19, 2021 at 3:57 PM Heiko Stübner <heiko@...ech.de> wrote:
>
> Am Freitag, 17. Dezember 2021, 06:35:00 CET schrieb Palmer Dabbelt:
> > On Fri, 19 Nov 2021 14:55:40 PST (-0800), plr.vincent@...il.com wrote:
> > > Provides monitoring of core voltage and current:
> > > tps544b20-i2c-0-1e
> > > Adapter: i2c-ocores
> > > vout1:       906.00 mV
> > > temp1:        -40.0°C  (high = +125.0°C, crit = +150.0°C)
> > > iout1:         5.06 A  (max = +20.00 A, crit max = +26.00 A)
> > >
> > > Signed-off-by: Vincent Pelletier <plr.vincent@...il.com>
> > >
> > > ---
> > > Note: checkpatch.pl complains about undocumented devicetree binding,
> > > which is fixed by:
> > >   https://lore.kernel.org/linux-devicetree/20211116110207.68494-1-krzysztof.kozlowski@canonical.com/T/#u
> > >
> > > Changes since v2:
> > > - Fix end-of-commit-message separator so change lists do not end up in them.
> > > Changes since v1:
> > > - Added missing "ti," prefix in compatible string.
> > > - Remove trailing "." on subject line.
> > > - Rename tree node.
> >
> > I see this in Rob's for-next as 761de79adc2c ("dt-bindings: hwmon: add
> > TI DC-DC converters"), so I'm going to hold off on this one until the
> > bindings land.
>
> Can't this patch then simply go into your for-next branch then?

Yes.

> The split is most times binding goes through the driver-tree
> (or Rob's dt tree) and the dts patch through an arch or soc tree.
>
> But in general once a maintainer accepts the binding it is ok
> to also apply the dts patch for the same cycle (aka merge window)
> the binding will be in.

Until there's issues with schema warnings showing up in specific
branches, going thru different trees isn't an issue. There's a lot of
warnings to fix first.

Rob