linux-kernel - Re: [PATCH] ARM: dts: zynq: Add address-cells property to interrupt controllers

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Date:   Wed, 3 Feb 2021 15:15:19 +0100
From:   Michal Simek <michal.simek@...inx.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Michal Simek <michal.simek@...inx.com>
CC:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "Michal Simek" <monstr@...str.eu>, git <git@...inx.com>,
        Andre Przywara <andre.przywara@....com>,
        <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] ARM: dts: zynq: Add address-cells property to interrupt
 controllers



On 2/3/21 3:12 PM, Rob Herring wrote:
> On Wed, Feb 3, 2021 at 1:01 AM Michal Simek <michal.simek@...inx.com> wrote:
>>
>>
>>
>> On 2/1/21 6:41 PM, Rob Herring wrote:
>>> On Mon, Feb 1, 2021 at 8:27 AM Michal Simek <michal.simek@...inx.com> wrote:
>>>>
>>>> The commit 3eb619b2f7d8 ("scripts/dtc: Update to upstream version
>>>> v1.6.0-11-g9d7888cbf19c") updated dtc version which also contained DTC
>>>> commit
>>>> "81e0919a3e21 checks: Add interrupt provider test"
>>>> where reasons for this checking are mentioned as
>>>> "A missing #address-cells property is less critical, but creates
>>>> ambiguities when used in interrupt-map properties, so warn about this as
>>>> well now."
>>>>
>>>> Add address-cells property to gic and gpio nodes to get rid of this warning.
>>>> The similar change has been done for ZynqMP too.
>>>
>>> FYI, we're going to make this check dependent on having an
>>> interrupt-map property. So adding these isn't necessary.
>>
>> Good to know. Is there going to be report if interrupt-map doesn't
>> exist? Which can end up with reverting these changes?
> 
> You mean a warning if '#address-cells' is present and interrupt-map is
> not? No, that would cause lots of warnings.

yep. What's the timeline for this? I mean I want to get to state that
all current warnings are gone that it will be much easier to add stuff
which we have in soc tree.

Thanks,
Michal