linux-kernel - Re: [PATCH v3 3/6] dt-bindings: pinctrl: Deprecate sunxi pinctrl bindings

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Message-ID: <20161025134150.dct42swdbwxzgbgb@lukather>
Date:   Tue, 25 Oct 2016 15:41:50 +0200
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        "linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v3 3/6] dt-bindings: pinctrl: Deprecate sunxi pinctrl
 bindings

Hi Linus,

On Tue, Oct 25, 2016 at 02:07:27PM +0200, Linus Walleij wrote:
> On Mon, Oct 24, 2016 at 9:49 PM, Maxime Ripard
> <maxime.ripard@...e-electrons.com> wrote:
> 
> > However, it looks like the first patch from this serie is missing from
> > your tree, is there a reason for that?
> 
> No can you point it out?

Sure:
http://lists.infradead.org/pipermail/linux-arm-kernel/2016-October/462500.html

> > Also, in order to preserve bisectability, could you create an
> > immutable branch for those sunxi patches so that I can merge the DT
> > bits?
> 
> It's too late because they are already in the devel branch
> and mixed up with merged of *other* immutable stuff.

Hmmmm, ok.

> However I think it is plain wrong to try to keep any bisectability
> between the kernel at large and arch/*/boot/dts/*, because
> the DTS stuff is supposed to at some point be maintained outside
> of the kernel and for all OSes, they simply shouldn't be sync:ed.

Yes, in the case of a new driver that needs to be introduced, I
definitely get your point.

However, during a conversion like we're doing here, this is not ideal,
because it essentially means that you will not have a branch that
works, at all.

I'll hold off on those patches until 4.11 then.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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