linux-kernel - Re: [PATCH v7 1/4] dt-bindings: pwm: Add OpenCores PWM module

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Date:   Mon, 13 Nov 2023 21:07:15 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     William Qiu <william.qiu@...rfivetech.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-riscv@...ts.infradead.org, linux-pwm@...r.kernel.org
Cc:     Emil Renner Berthing <kernel@...il.dk>,
        Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Hal Feng <hal.feng@...rfivetech.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>
Subject: Re: [PATCH v7 1/4] dt-bindings: pwm: Add OpenCores PWM module

On 13/11/2023 10:42, William Qiu wrote:
> Will update.
>>> +
>>> +allOf:
>>> +  - $ref: pwm.yaml#
>>> +
>>> +properties:
>>> +  compatible:
>>> +    oneOf:
>>> +      - items:
>>> +          - enum:
>>> +              - starfive,jh7100-pwm
>>> +              - starfive,jh7110-pwm
>>> +          - const: opencores,pwm
>>
>> That's a very, very generic compatible. Are you sure, 100% sure, that
>> all designs from OpenCores from now till next 100 years will be 100%
>> compatible?
>>
> My description is not accurate enough, this is OpenCores PTC IP, and PWM
> is one of those modes, so it might be better to replace compatible with
> "opencores, ptc-pwm"
> 
> What do you think?

Sorry, maybe this answers maybe doesn't. What is "PTC"?

Best regards,
Krzysztof