linux-kernel - Re: [PATCH v2 4/4] ASoC: dt-bindings: ti,ts3a227e.yaml: add jack-type

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Date:   Mon, 23 Jan 2023 10:19:21 +0100
From:   Astrid Rost <astridr@...s.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Astrid Rost <astrid.rost@...s.com>,
        Mark Brown <broonie@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Dylan Reid <dgreid@...omium.org>
CC:     <kernel@...s.com>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 4/4] ASoC: dt-bindings: ti,ts3a227e.yaml: add jack-type

Hello,

On 1/23/23 10:05, Krzysztof Kozlowski wrote:
> On 23/01/2023 09:39, Astrid Rost wrote:
>> Hello Krzysztof,
>>
>> On 1/22/23 15:16, Krzysztof Kozlowski wrote:
>>> On 20/01/2023 11:25, Astrid Rost wrote:
>>>> Add jack-type: Bitmap value of snd_jack_type to allow combining
>>>> card drivers to create a jack for it.
>>>
>>> Subject: drop "yaml". We do not filename extensions to subject prefix.
>>> Nowhere.
>>>
>>
>> yes, true.
>>
>>>>
>>>> Signed-off-by: Astrid Rost <astrid.rost@...s.com>
>>>> ---
>>>>    Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml | 8 ++++++++
>>>>    1 file changed, 8 insertions(+)
>>>>
>>>> diff --git a/Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml b/Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml
>>>> index 785930658029..1d949b805f98 100644
>>>> --- a/Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml
>>>> +++ b/Documentation/devicetree/bindings/sound/ti,ts3a227e.yaml
>>>> @@ -27,6 +27,14 @@ properties:
>>>>      interrupts:
>>>>        maxItems: 1
>>>>    
>>>> +  jack-type:
>>>> +    $ref: /schemas/types.yaml#/definitions/uint32
>>>> +    description: Bitmap value of snd_jack_type to allow combining
>>>> +      card drivers to create a jack for it. Supported is
>>>
>>> Why the device would once support (allow) headphone and once not? Device
>>> either always supports them or never...
>>>
>>
>> If a device has two connectors (pink and green), one for the microphone
>> and one for the headset.
> 
> We talk about "ts3a227" here, which has always two connectors (pins)...
> unless you refer to the case when these are e.g. grounded?
> 

yes, that is what I meant.
I push a version, where I remove this.

> 
>> It would be easier to see from the available
>> events, which is which. But of course it is possible to give it good names.
>> My first approach was, that it returned all supported types, so no
>> devicetree change needed. But by colleges agreed that it would be nice
>> to remove unused flags. I am happy to remove it and someone who requires
>> it can add it.
>>
>>>> +        1 SND_JACK_HEADPHONE
>>>> +        2 SND_JACK_MICROPHONE
>>>
>>> minimum and maximum
>>
>> I do not understand this? It is a bitmap. I can put it as an
>> enum:
>>    - 1 # SND_JACK_HEADPHONE
>>    - 2 # SND_JACK_MICROPHONE
>>    - 3 # SND_JACK_HEADPHONE | SND_JACK_MICROPHONE
> 
> 
> Then maximum is OR of them, isn't it?

yes 1-3
> 
> Best regards,
> Krzysztof
> 

Astrid