linux-kernel - Re: [PATCH v1] dt-bindings: opp: Allow multi-worded node names

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Message-ID: <48de7f40-deda-739d-96ca-e61ec5a0b257@gmail.com>
Date:   Fri, 22 Oct 2021 09:40:51 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Rob Herring <robh@...nel.org>
Cc:     Viresh Kumar <vireshk@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
        Nishanth Menon <nm@...com>, David Heidelberg <david@...t.cz>,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v1] dt-bindings: opp: Allow multi-worded node names

22.10.2021 07:43, Viresh Kumar пишет:
> On 20-10-21, 09:46, Rob Herring wrote:
>> On Wed, Oct 20, 2021 at 02:19:05AM +0300, Dmitry Osipenko wrote:
>>> Not all OPP table names and OPP entries consist of a single word. In
>>> particular NVIDIA Tegra OPP tables use multi-word names. Allow OPP node
>>> and OPP entry name to have multi-worded names to silence DT checker
>>> warnings about the multi-word names separated by hyphen.
>>>
>>> Reviewed-by: David Heidelberg <david@...t.cz>
>>> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
>>> ---
>>>  Documentation/devicetree/bindings/opp/opp-v2-base.yaml | 4 ++--
>>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
>>> index ae3ae4d39843..298cf24af270 100644
>>> --- a/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
>>> +++ b/Documentation/devicetree/bindings/opp/opp-v2-base.yaml
>>> @@ -22,7 +22,7 @@ select: false
>>>  
>>>  properties:
>>>    $nodename:
>>> -    pattern: '^opp-table(-[a-z0-9]+)?$'
>>> +    pattern: '^opp-table(-[a-z0-9]+)*$'
>>
>> I don't see how this helps you. What I see needed upstream is a prefix:
>>
>> '-?opp-table(-[0-9]+)?$'
> 
> I wonder if we should disallow that to keep naming more 

I also think that postfix variant should be disallowed for consistency.
I sent out patches for both variants.

V2 uses pattern that supports both naming schemes. If V2 is less
appropriate, then please take this V1.