linux-kernel - Re: [PATCH 1/4] dt-bindings: pwm: google,cros-ec: include generic pwm schema

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Message-ID: <1817486.VeUe9BSz9F@phil>
Date:   Thu, 24 Feb 2022 11:06:30 +0100
From:   Heiko Stuebner <heiko@...ech.de>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Rob Herring <robh+dt@...nel.org>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        devicetree@...r.kernel.org, chrome-platform@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-pwm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-arm-msm@...r.kernel.org,
        linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH 1/4] dt-bindings: pwm: google,cros-ec: include generic pwm schema

Am Donnerstag, 24. Februar 2022, 11:02:48 CET schrieb Lee Jones:
> On Wed, 23 Feb 2022, Heiko Stuebner wrote:
> 
> > Hi Lee,
> > 
> > Am Mittwoch, 23. Februar 2022, 10:16:01 CET schrieb Lee Jones:
> > > On Mon, 14 Feb 2022, Krzysztof Kozlowski wrote:
> > > 
> > > > Include generic pwm.yaml schema, which enforces PWM node naming.  Keep
> > > > the old name in bindings as deprecated.
> > > > 
> > > > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> > > > ---
> > > >  Documentation/devicetree/bindings/mfd/google,cros-ec.yaml    | 4 ++++
> > > 
> > > Acked-by: Lee Jones <lee.jones@...aro.org>
> > 
> > what is your expectation regarding this patch?
> > 
> > Are you planning to merge it or are you expecting this to go through
> > some other tree?
> > 
> > The binding-change here is backward-comaptible in that the old
> > node-name is still in it, only marked as deprecated, so in theory
> > this patch should be able to be applied on its own without
> > causing defects.
> 
> In an ideal world, it would be broken up and I would take the MFD
> part.   Is that possible or are there dependencies?

That is also what Krzysztof had in mind - see his reply to patch4.
Binding going through the MFD tree and soc maintainers applying
the individual dts patches.

As written the binding change is backward compatible, so no harm.

I was just confused by the "Acked-by" and wanted to clarify how you
see it ;-)


Heiko