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Message-ID: <c0244a98-4c91-93d8-a3e4-5210d0b3f205@linaro.org>
Date:   Sat, 1 Jul 2023 10:17:51 +0200
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Subject: Re: [PATCH v1 1/5] ASoC: dt-bindings: Add StarFive JH7110 dummy
 PWM-DAC transmitter
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To:     Hal Feng <hal.feng@starfivetech.com>,
        Mark Brown <broonie@kernel.org>,
        Liam Girdwood <lgirdwood@gmail.com>,
        Jaroslav Kysela <perex@perex.cz>,
        Takashi Iwai <tiwai@suse.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor@kernel.org>,
        Walker Chen <walker.chen@starfivetech.com>,
        Xingyu Wu <xingyu.wu@starfivetech.com>,
        Emil Renner Berthing <emil.renner.berthing@canonical.com>
Cc:     alsa-devel@alsa-project.org, devicetree@vger.kernel.org,
        linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
References: <20230626110909.38718-1-hal.feng@starfivetech.com>
 <20230626110909.38718-2-hal.feng@starfivetech.com>
 <006ddacd-0496-70d1-3310-99b16706de84@linaro.org>
 <0312262c-28c0-9445-c6f7-2079a57db8c7@starfivetech.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <0312262c-28c0-9445-c6f7-2079a57db8c7@starfivetech.com>
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On 30/06/2023 03:57, Hal Feng wrote:
> On Mon, 26 Jun 2023 17:34:56 +0200, Krzysztof Kozlowski wrote:
>> On 26/06/2023 13:09, Hal Feng wrote:
>>> Add bindings for StarFive JH7110 dummy PWM-DAC transmitter.
>>
>> ...
>>
>>> +required:
>>> +  - compatible
>>> +  - "#sound-dai-cells"
>>> +
>>> +additionalProperties: false
>>> +
>>> +examples:
>>> +  - |
>>> +    pwmdac-dit {
>>> +        compatible = "starfive,jh7110-pwmdac-dit";
>>> +        #sound-dai-cells = <0>;
>>
>> BTW, I don't see any resources here. Neither in the driver. I think you
>> just added this for driver, not for a real hardware.
> 
> Yes, this is a dummy PWM-DAC transmitter as described in the title. The
> StarFive JH7110 PWM-DAC module doesn't need a hardware codec, but a
> dummy codec is needed for the driver.

Bindings are no for drivers, therefore with such reasoning the answer
is: drop entire binding. If you think otherwise, please give me some
more details about the hardware.

Best regards,
Krzysztof