linux-kernel - Re: [PATCH v3 5/5] arm64: dts: qcom: qrb4210-rb2: add HDMI audio playback support

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Message-ID: <33736e2e-7ac2-4ec1-9d83-eb8360942bbb@oss.qualcomm.com>
Date: Fri, 25 Oct 2024 21:09:42 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Alexey Klimov <alexey.klimov@...aro.org>, linux-sound@...r.kernel.org,
        srinivas.kandagatla@...aro.org, broonie@...nel.org
Cc: lgirdwood@...il.com, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, andersson@...nel.org, konradybcio@...nel.org,
        perex@...ex.cz, tiwai@...e.com, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, dmitry.baryshkov@...aro.org,
        krzysztof.kozlowski@...aro.org, caleb.connolly@...aro.org,
        linux-kernel@...r.kernel.org, a39.skl@...il.com
Subject: Re: [PATCH v3 5/5] arm64: dts: qcom: qrb4210-rb2: add HDMI audio
 playback support

On 18.10.2024 4:54 AM, Alexey Klimov wrote:
> Add sound node and dsp-related piece to enable HDMI audio
> playback support on Qualcomm QRB4210 RB2 board. That is the
> only sound output supported for now.
> 
> The audio playback is verified using the following commands:
> 
> amixer -c0 cset iface=MIXER,name='SEC_MI2S_RX Audio Mixer MultiMedia1' 1
> aplay -D hw:0,0 /usr/share/sounds/alsa/Front_Center.wav
> 
> Cc: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
> ---
>  arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 55 ++++++++++++++++++++++++
>  1 file changed, 55 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> index 1888d99d398b..5f671b9c8fb9 100644
> --- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> +++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
> @@ -6,6 +6,8 @@
>  /dts-v1/;
>  
>  #include <dt-bindings/leds/common.h>
> +#include <dt-bindings/sound/qcom,q6afe.h>
> +#include <dt-bindings/sound/qcom,q6asm.h>
>  #include <dt-bindings/usb/pd.h>
>  #include "sm4250.dtsi"
>  #include "pm6125.dtsi"
> @@ -103,6 +105,51 @@ led-wlan {
>  		};
>  	};
>  
> +	sound {
> +		compatible = "qcom,qrb4210-rb2-sndcard";
> +		pinctrl-0 = <&lpi_i2s2_active>;
> +		pinctrl-names = "default";
> +		model = "Qualcomm-RB2-WSA8815-Speakers-DMIC0";
> +		audio-routing = "MM_DL1",  "MultiMedia1 Playback",
> +				"MM_DL2",  "MultiMedia2 Playback";

I'm seeing a lot of double spaces in this patch

> +
> +		mm1-dai-link {
> +			link-name = "MultiMedia1";
> +			cpu {

Please add a newline between the subnode

Looks nice otherwise

Konrad