linux-kernel - Re: [PATCH 5/5] arm64: dts: qcom: qrb2210-rb1: add HDMI/I2S audio playback support

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Message-Id: <DCVZMD9HWPX0.LOKMJXTY1Y46@linaro.org>
Date: Thu, 18 Sep 2025 15:15:01 +0100
From: "Alexey Klimov" <alexey.klimov@...aro.org>
To: "Konrad Dybcio" <konrad.dybcio@....qualcomm.com>, "Bjorn Andersson"
 <andersson@...nel.org>, "Linus Walleij" <linus.walleij@...aro.org>, "Rob
 Herring" <robh@...nel.org>, "Krzysztof Kozlowski" <krzk+dt@...nel.org>,
 "Conor Dooley" <conor+dt@...nel.org>, "Konrad Dybcio"
 <konradybcio@...nel.org>, "Srinivas Kandagatla"
 <srinivas.kandagatla@...aro.org>, "Liam Girdwood" <lgirdwood@...il.com>,
 "Mark Brown" <broonie@...nel.org>
Cc: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
 <linux-kernel@...r.kernel.org>, <linux-sound@...r.kernel.org>
Subject: Re: [PATCH 5/5] arm64: dts: qcom: qrb2210-rb1: add HDMI/I2S audio
 playback support

On Tue Mar 4, 2025 at 4:56 PM GMT, Konrad Dybcio wrote:
> On 2.03.2025 3:49 AM, Alexey Klimov wrote:
>> Add sound node and dsp-related pieces to enable HDMI+I2S audio playback
>> support on Qualcomm QR2210 RB1 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>
>> Signed-off-by: Alexey Klimov <alexey.klimov@...aro.org>
>> ---
>>  arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 49 ++++++++++++++++++++++++++++++++
>>  1 file changed, 49 insertions(+)
>> 
>> diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
>> index 7a789b41c2f1887f0c41ae24da2e2fe8915ab13c..e547537cffdbc13cfd21b8b8b7210b62996ff431 100644
>> --- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
>> +++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
>> @@ -186,6 +186,47 @@ vph_pwr: regulator-vph-pwr {
>>  		regulator-always-on;
>>  		regulator-boot-on;
>>  	};
>> +
>> +	sound {
>> +		compatible = "qcom,qrb2210-rb1-sndcard", "qcom,qrb4210-rb2-sndcard";
>> +		pinctrl-0 = <&lpi_i2s2_active>;
>> +		pinctrl-names = "default";
>> +		model = "Qualcomm-RB1-WSA8815-Speakers-DMIC0";
>> +		audio-routing = "MM_DL1", "MultiMedia1 Playback",
>> +				"MM_DL2", "MultiMedia2 Playback";
>> +
>> +		mm1-dai-link {
>> +			link-name = "MultiMedia1";
>> +
>> +			cpu {
>> +				sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
>> +			};
>> +		};
>> +
>> +		mm2-dai-link {
>> +			link-name = "MultiMedia2";
>> +
>> +			cpu {
>> +				sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA2>;
>> +			};
>> +		};
>> +
>> +		hdmi-i2s-dai-link {
>> +			link-name = "HDMI/I2S Playback";
>> +
>> +			cpu {
>> +				sound-dai = <&q6afedai SECONDARY_MI2S_RX>;
>> +			};
>> +
>> +			platform {
>> +				sound-dai = <&q6routing>;
>> +			};
>> +
>> +			codec {
>> +				sound-dai = <&lt9611_codec 0>;
>> +			};
>
> "codec" < "cpu" < "platform"
>
> with that:
>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Yes, you're right. I need to sort it for the next version. Thanks.

Best regards,
Alexey