linux-kernel - Re: [PATCH v4 2/2] arm64: dts: qcom: lemans-evk: Add sound card

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1df90473-551a-4c1b-9a51-af4a6fff1bb5@oss.qualcomm.com>
Date: Wed, 3 Sep 2025 14:14:03 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Mohammad Rafi Shaik <mohammad.rafi.shaik@....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: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@....qualcomm.com
Subject: Re: [PATCH v4 2/2] arm64: dts: qcom: lemans-evk: Add sound card

On 8/22/25 3:19 PM, Mohammad Rafi Shaik wrote:
> Add the sound card node with tested playback over max98357a
> I2S speakers amplifier and I2S mic.
> 
> Introduce HS (High-Speed) MI2S pin control support.
> The I2S max98357a speaker amplifier is connected via HS0 and I2S
> microphones utilize the HS2 interface.
> 
> Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@....qualcomm.com>
> ---
>  arch/arm64/boot/dts/qcom/lemans-evk.dts | 52 +++++++++++++++++++++++++
>  arch/arm64/boot/dts/qcom/lemans.dtsi    | 14 +++++++
>  2 files changed, 66 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
> index 669ac52f4cf6..d67a9307cc75 100644
> --- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
> +++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
> @@ -6,6 +6,7 @@
>  /dts-v1/;
>  
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/sound/qcom,q6afe.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>  
>  #include "lemans.dtsi"
> @@ -22,6 +23,57 @@ aliases {
>  	chosen {
>  		stdout-path = "serial0:115200n8";
>  	};
> +
> +	dmic: audio-codec-0 {
> +		compatible = "dmic-codec";
> +		#sound-dai-cells = <0>;
> +		num-channels = <1>;
> +	};
> +
> +	max98357a: audio-codec-1 {
> +		compatible = "maxim,max98357a";

In case anyone's interested, this the SD_MODE pin is connected to the
power supply (i.e. it's always on)

Konrad