linux-kernel - Re: [PATCH DNM 2/2] arm64: dts: qcom: qcm6490-fairphone-fp5: Add DisplayPort sound support

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Message-ID: <hqwrfe2tcb6vlxybmn52k3j2xrxbt3vw5rqwudindbhj3s3nez@obkr3ayos6gm>
Date: Tue, 28 May 2024 16:35:15 -0500
From: Bjorn Andersson <andersson@...nel.org>
To: Luca Weiss <luca.weiss@...rphone.com>
Cc: cros-qcom-dts-watchers@...omium.org, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>, Mohammad Rafi Shaik <quic_mohs@...cinc.com>, 
	~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH DNM 2/2] arm64: dts: qcom: qcm6490-fairphone-fp5: Add
 DisplayPort sound support

On Fri, May 10, 2024 at 02:27:09PM GMT, Luca Weiss wrote:
> Add the required nodes for sound playback via a connected external
> display (DisplayPort over USB-C).
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
> Depends on a bunch of patches upstream doing bringup of Display (DSI),
> DisplayPort, GPU, and then finally audio could land. But we're blocked
> on DPU 1:1:1 topology for all of that unfortunately.
> 
> And also machine driver for sound just exists a bit hackily.

Thanks for sharing this, Luca. Can you please resubmit this once it's
ready to be merged, so that I don't need to keep track of it?

Regards,
Bjorn

> ---
>  arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts | 36 ++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> index 05bbf1da5cb8..2bbbcaeff95e 100644
> --- a/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> +++ b/arch/arm64/boot/dts/qcom/qcm6490-fairphone-fp5.dts
> @@ -14,6 +14,8 @@
>  #include <dt-bindings/leds/common.h>
>  #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
> +#include <dt-bindings/sound/qcom,q6afe.h>
> +#include <dt-bindings/sound/qcom,q6asm.h>
>  #include "sc7280.dtsi"
>  #include "pm7250b.dtsi"
>  #include "pm7325.dtsi"
> @@ -774,6 +776,12 @@ &pon_resin {
>  	status = "okay";
>  };
>  
> +&q6afedai {
> +	dai@104 {
> +		reg = <DISPLAY_PORT_RX>;
> +	};
> +};
> +
>  &qup_spi13_cs {
>  	drive-strength = <6>;
>  	bias-disable;
> @@ -847,6 +855,34 @@ &sdhc_2 {
>  	status = "okay";
>  };
>  
> +&sound {
> +	compatible = "fairphone,fp5-sndcard";
> +	model = "Fairphone 5";
> +
> +	mm1-dai-link {
> +		link-name = "MultiMedia1";
> +		cpu {
> +			sound-dai = <&q6asmdai MSM_FRONTEND_DAI_MULTIMEDIA1>;
> +		};
> +	};
> +
> +	displayport-rx-dai-link {
> +		link-name = "DisplayPort Playback";
> +
> +		cpu {
> +			sound-dai = <&q6afedai DISPLAY_PORT_RX>;
> +		};
> +
> +		platform {
> +			sound-dai = <&q6routing>;
> +		};
> +
> +		codec {
> +			sound-dai = <&mdss_dp>;
> +		};
> +	};
> +};
> +
>  &spi13 {
>  	status = "okay";
>  
> 
> -- 
> 2.45.0
>