linux-kernel - Re: [PATCH v2 01/11] ASoC: dt-bindings: add dt bindings for WCD9340/WCD9341 audio codec

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Message-ID: <7811be04-dfda-5953-110c-bca685fdcaa4@linaro.org>
Date:   Wed, 30 Oct 2019 09:55:12 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Mark Brown <broonie@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Lee Jones <lee.jones@...aro.org>,
        Vinod Koul <vinod.koul@...aro.org>,
        Linux-ALSA <alsa-devel@...a-project.org>,
        devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        spapothi@...eaurora.org, Banajit Goswami <bgoswami@...eaurora.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>
Subject: Re: [PATCH v2 01/11] ASoC: dt-bindings: add dt bindings for
 WCD9340/WCD9341 audio codec



On 29/10/2019 20:47, Rob Herring wrote:
> On Mon, Oct 28, 2019 at 7:45 AM Srinivas Kandagatla
> <srinivas.kandagatla@...aro.org> wrote:
>>
>>
>>
>> On 28/10/2019 12:40, Srinivas Kandagatla wrote:
>>> Its Phandle.
>>>
>>> something like this is okay?
>>>
>>> slim-ifc-dev:
>>>     $ref: '/schemas/types.yaml#/definitions/phandle-array'
>>
>> Sorry this should not be an array, so something like this:
>>
>>     slim-ifc-dev:
>>       description: SLIMBus Interface device phandle
> 
> You're just spelling out the abbreviated name. I can do that much.
> What is 'SLIMBus Interface device'?

Each SLIMBus Component contains one Interface Device. Which is 
responsible for Monitoring and reporting the status of component, Data 
line to Data pin connection setup for SLIMBus streaming. Interface 
device is enumerated just like any other slim device.

We already have exactly same bindings for WCD9335 in upstream at:

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/sound/qcom,wcd9335.txt?h=v5.4-rc5#n42

> 
> Is it a standard SLIMBus property? If so, document it in the right
> place. If not, then needs a vendor prefix.

"SLIMBus Interface Device" itself is documented in SLIMBus Specification.

If I remember it correctly You suggested me to move to "slim-ifc-dev" 
as this is part of SLIMBus Specification.

Thanks,
srini


> 
>>       $ref: '/schemas/types.yaml#/definitions/phandle'
>>
>>
>>>     description: SLIMBus Interface device phandle