linux-kernel - Re: [PATCH v4 08/10] arm64: dts: qcom: kaanapali-mtp: Add audio support (WSA8845, WCD9395, DMIC)

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Message-ID: <ee5ad7f5-428f-4948-9892-d2c598f4d0d9@oss.qualcomm.com>
Date: Wed, 28 Jan 2026 12:28:31 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Jingyi Wang <jingyi.wang@....qualcomm.com>,
        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>
Cc: aiqun.yu@....qualcomm.com, tingwei.zhang@....qualcomm.com,
        trilok.soni@....qualcomm.com, yijie.yang@....qualcomm.com,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        20260114-knp-remoteproc-v4-0-fcf0b04d01af@....qualcomm.com,
        Prasad Kumpatla <prasad.kumpatla@....qualcomm.com>
Subject: Re: [PATCH v4 08/10] arm64: dts: qcom: kaanapali-mtp: Add audio
 support (WSA8845, WCD9395, DMIC)

On 1/27/26 9:34 AM, Jingyi Wang 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(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts b/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts
> index 3544f744fd1d..7dfc2a81637c 100644
> --- a/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts
> +++ b/arch/arm64/boot/dts/qcom/kaanapali-mtp.dts
> @@ -52,6 +52,115 @@ bi_tcxo_ao_div2: bi-tcxo-ao-div2-clk {
>  			clock-div = <2>;
>  		};
>  	};
> +
> +	sound {
> +		compatible = "qcom,kaanapali-sndcard", "qcom,sm8450-sndcard";
> +		model = "Kaanapali-MTP";
> +
> +		audio-routing = "SpkrLeft IN", "WSA_SPK1 OUT",
> +				"SpkrRight IN", "WSA_SPK2 OUT",
> +				"IN1_HPHL", "HPHL_OUT",
> +				"IN2_HPHR", "HPHR_OUT",
> +				"AMIC2", "MIC BIAS2",
> +				"VA DMIC0", "MIC BIAS1",
> +				"VA DMIC1", "MIC BIAS1",
> +				"VA DMIC2", "MIC BIAS3",
> +				"VA DMIC3", "MIC BIAS3",
> +				"TX SWR_INPUT1", "ADC2_OUTPUT";
> +
> +		wcd-playback-dai-link {
> +			link-name = "WCD Playback";
> +
> +			codec {
> +				sound-dai = <&wcd939x 0>, <&swr1 0>, <&lpass_rxmacro 0>;
> +			};
> +
> +			cpu {
> +				sound-dai = <&q6apmbedai RX_CODEC_DMA_RX_0>;
> +			};
> +
> +			platform {
> +				sound-dai = <&q6apm>;
> +			};
> +		};
> +
> +		wcd-capture-dai-link {

ideally wcd-'c'apture < wcd-'p'layback

but I have no other comments

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad