linux-kernel - Re: [PATCH] dt-bindings: pwm: st: convert sti-pwm to DT schema

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Message-ID: <8e74af01-36c6-3a41-6d31-91b09ea62026@gmail.com>
Date:   Thu, 3 Aug 2023 09:18:14 +0200
From:   Raphaël Gallais-Pou <rgallaispou@...il.com>
To:     Uwe Kleine-König <u.kleine-koenig@...gutronix.de>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Patrice Chotard <patrice.chotard@...s.st.com>,
        linux-pwm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: pwm: st: convert sti-pwm to DT schema

Hi

Le 02/08/2023 à 10:02, Uwe Kleine-König a écrit :
> Hello,
> 
> On Wed, Aug 02, 2023 at 12:05:59AM +0200, Raphael Gallais-Pou wrote:
>> +  st,capture-num-chan:
>> +    $ref: "/schemas/types.yaml#/definitions/uint32"
>> +    description: Number of available Capture channels.
> 
> I have the theory that nobody actually uses the capture feature and I'd
> like to get rid of it. People who do use it, should better switch to the
> counter driver.

TBH I only found two drivers using it, including this one.

$ grep -rinI "\.capture" drivers/pwm/ | wc -l
2

While I agree that there is not much drivers using capture feature, I 
have mixed feelings about removing it.
> 
> I wonder if this is the opportunity to drop st,capture-num-chan. There
> is no mainline user.

If there is no opposition about removing this feature I suggest to do it 
in a second time, in a serie.

Regards,
Raphaël
> 
> Best regards
> Uwe
>