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@oss.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";
+		#sound-dai-cells = <0>;
+	};
+
+	sound {
+		compatible = "qcom,qcs9100-sndcard";
+		model = "LEMANS-EVK";
+
+		pinctrl-0 = <&hs0_mi2s_active>, <&hs2_mi2s_active>;
+		pinctrl-names = "default";
+
+		hs0-mi2s-playback-dai-link {
+			link-name = "HS0 MI2S Playback";
+
+			codec {
+				sound-dai = <&max98357a>;
+			};
+
+			cpu {
+				sound-dai = <&q6apmbedai PRIMARY_MI2S_RX>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+
+		hs2-mi2s-capture-dai-link {
+			link-name = "HS2 MI2S Capture";
+
+			codec {
+				sound-dai = <&dmic>;
+			};
+
+			cpu {
+				sound-dai = <&q6apmbedai TERTIARY_MI2S_TX>;
+			};
+
+			platform {
+				sound-dai = <&q6apm>;
+			};
+		};
+	};
 };
 
 &apps_rsc {
diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 7026f25877c8..d73037d6d97a 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -5005,6 +5005,20 @@ tlmm: pinctrl@f000000 {
 			gpio-ranges = <&tlmm 0 0 149>;
 			wakeup-parent = <&pdc>;
 
+			hs0_mi2s_active: hs0-mi2s-active-state {
+				pins = "gpio114", "gpio115", "gpio116", "gpio117";
+				function = "hs0_mi2s";
+				drive-strength = <8>;
+				bias-disable;
+			};
+
+			hs2_mi2s_active: hs2-mi2s-active-state {
+				pins = "gpio122", "gpio123", "gpio124", "gpio125";
+				function = "hs2_mi2s";
+				drive-strength = <8>;
+				bias-disable;
+			};
+
 			qup_i2c0_default: qup-i2c0-state {
 				pins = "gpio20", "gpio21";
 				function = "qup0_se0";
-- 
2.34.1

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@oss.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

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@oss.qualcomm.com>
> ---

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

Konrad