linux-kernel - Re: [PATCH 18/20] arm64: dts: qcom: kaanapali-mtp: Add audio support (WSA8845, WCD9395, DMIC)

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Message-ID: <19639c5e-7aa8-4e75-812d-93d805802cd3@kernel.org>
Date: Wed, 8 Oct 2025 19:51:30 +0900
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
 Prasad Kumpatla <prasad.kumpatla@....qualcomm.com>,
 Jingyi Wang <jingyi.wang@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 aiqun.yu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
 trilok.soni@....qualcomm.com, yijie.yang@....qualcomm.com
Subject: Re: [PATCH 18/20] arm64: dts: qcom: kaanapali-mtp: Add audio support
 (WSA8845, WCD9395, DMIC)

On 08/10/2025 19:20, Konrad Dybcio wrote:
> On 10/6/25 10:48 AM, Krzysztof Kozlowski wrote:
>> On 30/09/2025 21:06, Prasad Kumpatla wrote:
>>>
>>> On 9/25/2025 6:56 PM, Krzysztof Kozlowski wrote:
>>>> On Thu, 25 Sept 2025 at 09:18, Jingyi Wang <jingyi.wang@....qualcomm.com> wrote:
>>>>> From: Prasad Kumpatla <prasad.kumpatla@....qualcomm.com>
>>>>>
>>>>> Add support for audio on the Kaanapali MTP platform by introducing device
>>>>> tree nodes for WSA8845 smart speaker amplifier for playback, DMIC
>>>>> microphone for capture, and sound card routing. The WCD9395 codec is add
>>>>> to supply MIC-BIAS, for enabling onboard microphone capture.
>>>>>
>>>>> Signed-off-by: Prasad Kumpatla <prasad.kumpatla@....qualcomm.com>
>>>>> Signed-off-by: Jingyi Wang <jingyi.wang@....qualcomm.com>
>>>>> ---
>>>>>   arch/arm64/boot/dts/qcom/kaanapali-mtp.dts | 226 +++++++++++++++++++++++++++++
>>>>>   1 file changed, 226 insertions(+)
>>>>>
>>>> Audio is not a separate feature from USB.
>>>
>>> I didn't understand this, Could you please help me to provide more 
>>> context on it?
>>> Is this regarding Audio over Type-c?
>>
>> USB depends on ADSP, so your split of patches into separate audio commit
>> is just incorrect.
> 
> No, this is no longer the case on Kaanapali.
> 
> PMIC_GLINK is now served by the SoCCP rproc

Hm, ok.... so there is no WCD93xx USB mux anymore?

Best regards,
Krzysztof