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Date:   Wed, 20 Oct 2021 09:46:56 -0500
From:   Rob Herring <robh@...nel.org>
To:     Dmitry Osipenko <digetx@...il.com>
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

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]+)?$'

Though really what I'd like to see is the OPP nodes moved into the 
device nodes they belong to when appropriate (i.e. when not shared 
between multiple devices).

>  
>    opp-shared:
>      description:
> @@ -33,7 +33,7 @@ properties:
>      type: boolean
>  
>  patternProperties:
> -  '^opp-?[0-9]+$':
> +  '^opp(-[0-9]+)*$':
>      type: object
>      description:
>        One or more OPP nodes describing voltage-current-frequency combinations.
> -- 
> 2.32.0
> 
> 

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