linux-kernel - Re: [PATCH] dt-bindings: Remove leading 0x from bindings notation

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Message-ID: <20171201024056.ij4jg3cfwq474db3@rob-hp-laptop>
Date:   Thu, 30 Nov 2017 20:40:56 -0600
From:   Rob Herring <robh@...nel.org>
To:     Mathieu Malaterre <malat@...ian.org>
Cc:     David Daney <ddaney@...iumnetworks.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Marco Franchi <marco.franchi@....com>,
        linux-mips@...ux-mips.org
Subject: Re: [PATCH] dt-bindings: Remove leading 0x from bindings notation

On Thu, Nov 30, 2017 at 08:57:11AM +0100, Mathieu Malaterre wrote:
> Hi David,
> 
> On Thu, Nov 30, 2017 at 12:21 AM, David Daney <ddaney@...iumnetworks.com> wrote:
> > On 11/29/2017 12:55 PM, Mathieu Malaterre wrote:
> >>
> >> Improve the binding example by removing all the leading 0x to fix the
> >> following dtc warnings:
> >>
> >> Warning (unit_address_format): Node /XXX unit name should not have leading
> >> "0x"
> >
> >
> > How does it fix the warnings?  You are not changing the .dts files that are
> > compiled.

If the examples were compiled, then they would have this warning...

> 
> I originally only wanted to fix [...]watchdog/ingenic,jz4740-wdt.txt,
> but when I lookup git log, I eventually found out about the commit I
> refer to in my commit message:
> 
> https://github.com/torvalds/linux/commit/48c926cd3414
> 
> and I simply followed suggestion from Rob:
> 
> https://lkml.org/lkml/2017/11/1/965
> 
> > This may also cause the binding documentation to differ from the reality of
> > what the actual device trees contain.
> 
> 
> Chicken or the egg dilemma, but you understand that linux master tree
> still has the original warning:
> 
> $ perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./ -type f \( -iname
> \*.dtsi -o -iname \*.dts \)`
> $ git diff | diffstat
> [...]
>  40 files changed, 160 insertions(+), 160 deletions(-)
> 
> And those are real W=1 actual warnings. Do you want me to re-submit it
> as patch series instead which fix both the documentation side and the
> dts* files ?

Some of those I skipped on purpose (they don't really follow standard 
unit-address), but I does look like some new ones got in. I'm not sure 
why I skipped PPC and xtensa altogether.

No need to fix everything, everywhere (but more patches always welcome 
:) ).

I'll apply this. Thanks. 

Rob