linux-kernel - Re: [PATCH 00/10] dt-bindings: Convert SP805 to Json-schema (and fix users)

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Date:   Tue, 1 Sep 2020 16:56:13 +0100
From:   André Przywara <andre.przywara@....com>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, Guenter Roeck <linux@...ck-us.net>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Viresh Kumar <vireshk@...nel.org>,
        LINUX-WATCHDOG <linux-watchdog@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Chanho Min <chanho.min@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Liviu Dudau <liviu.dudau@....com>,
        Li Yang <leoyang.li@....com>, Shawn Guo <shawnguo@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        "maintainer:BROADCOM BCM7XXX ARM ARCHITECTURE" 
        <bcm-kernel-feedback-list@...adcom.com>,
        Sudeep Holla <sudeep.holla@....com>,
        Wei Xu <xuwei5@...ilicon.com>
Subject: Re: [PATCH 00/10] dt-bindings: Convert SP805 to Json-schema (and fix
 users)

On 28/08/2020 22:32, Florian Fainelli wrote:

Hi,

Florian, thanks for queueing the Broadcom specific patches!

> On 8/28/20 2:28 PM, Rob Herring wrote:
>> On Fri, Aug 28, 2020 at 1:34 PM Florian Fainelli <f.fainelli@...il.com> wrote:
>>>
>>> On 8/28/20 6:05 AM, Andre Przywara wrote:
>>>> This is an attempt to convert the SP805 watchdog DT binding to yaml.
>>>> This is done in the first patch, the remaining nine fix some DT users.
>>>>
>>>> I couldn't test any of those DT files on actual machines, but tried
>>>> to make the changes in a way that would be transparent to at least the
>>>> Linux driver. The only other SP805 DT user I could find is U-Boot, which
>>>> seems to only use a very minimal subset of the binding (just the first
>>>> clock).
>>>> I only tried to fix those DTs that were easily and reliably fixable.
>>>> AFAICT, a missing primecell compatible string, for instance, would
>>>> prevent the Linux driver from probing the device at all, so I didn't
>>>> dare to touch those DTs at all. Missing clocks are equally fatal.
>>>
>>> What is the plan for merging this series? Should Rob pick up all changes
>>> or since those are non critical changes, should we just leave it to the
>>> SoC maintainers to pick up the changes in their tree?
>>
>> I don't take .dts files. Either subarch maintainers can pick up
>> individual patches or send a PR to SoC maintainers.
> 
> OK, so we are fine, to say make sure this all lands in v5.10-rc1 at some
> point and the warnings should no longer exist by then?

So yes, I would be very grateful if subsystem maintainers take this at
their discretion.
For once, I didn't actually change anything in the binding, so most
things were already slightly wrong according to the .txt binding, just
nobody realised or cared. So those .dts files changes are actually
independent and justified even without patch 01/10.

Secondly, there are already so many warnings in many .dts files at the
moment, that (in the worst case) a few more - for a brief period of time
- do not really matter. But at the end it will improve the situation.

Rob, if you are fine with the actual binding, I would try to pursue the
remaining subsystem maintainers to get the .dts changes merged.

Thanks,
Andre.