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SubjectRe: [PATCH v5 21/23] ASoC: qdsp6: dt-bindings: Add apq8096 machine bindings
On Tue, Apr 24, 2018 at 11:49 AM, Srinivas Kandagatla
<srinivas.kandagatla@linaro.org> wrote:
> Thanks for the review.
>
>
> On 24/04/18 17:25, Rob Herring wrote:
>>
>> On Wed, Apr 18, 2018 at 04:31:55PM +0100, srinivas.kandagatla@linaro.org
>> wrote:
>>>
>>> From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
>>>
>>> Add devicetree bindings documentation file for Qualcomm apq8096 sound
>>> card.
>>>
>>> Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
>>> ---
>>> .../devicetree/bindings/sound/qcom,apq8096.txt | 76
>>> ++++++++++++++++++++++
>>> 1 file changed, 76 insertions(+)
>>> create mode 100644
>>> Documentation/devicetree/bindings/sound/qcom,apq8096.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/sound/qcom,apq8096.txt
>>> b/Documentation/devicetree/bindings/sound/qcom,apq8096.txt
>>> new file mode 100644
>>> index 000000000000..37e23d926b95
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/sound/qcom,apq8096.txt
>>> @@ -0,0 +1,76 @@
>>> +* Qualcomm Technologies APQ8096 ASoC sound card driver
>>> +
>>> +This binding describes the APQ8096 sound card, which uses qdsp for
>>> audio.
>>> +
>>> +- compatible:
>>> + Usage: required
>>> + Value type: <stringlist>
>>> + Definition: must be "qcom,apq8096-sndcard"
>>> +
>>> +- qcom,audio-routing:
>>> + Usage: Optional
>>> + Value type: <stringlist>
>>> + Definition: A list of the connections between audio components.
>>> + Each entry is a pair of strings, the first being the
>>> + connection's sink, the second being the connection's
>>> + source. Valid names could be power supplies, MicBias
>>> + of codec and the jacks on the board:
>>
>>
>> Please list out valid values here.
>
>
> I can list the values for the HDMI playback use-case, but the list would
> grow as we start adding wcd9335 codec support.

If you don't have the values, then how does one validate a DT is correct?

Honestly, a single property like this seems insufficient to describe
audio routing.

>>> +
>>> += dailinks
>>> +Each subnode of sndcard represents either a dailink, and subnodes of
>>> each
>>> +dailinks would be cpu/codec/platform dais.
>>> +
>>> +- link-name:
>>
>>
>> Not a standard property, but I guess that sneaked in with the 8016
>> binding...
>
> Yes, I followed 8016 bindings.
>
> Am happy to prefix this with qcom if that makes more sense.

I'd just leave it to be consistent.

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