linux-kernel - Re: [PATCH v2 2/2] arm64: dts: qcom: x1e78100-t14s: Add audio playback over DisplayPort

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Message-ID: <2d4953c6-184d-423b-80e9-871c6e00da35@oss.qualcomm.com>
Date: Wed, 17 Dec 2025 13:33:45 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@....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>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Abel Vesa <abel.vesa@...aro.org>
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: x1e78100-t14s: Add audio
 playback over DisplayPort

On 12/17/25 1:00 PM, Krzysztof Kozlowski wrote:
> Add necessary DAI links and DAI name prefixes to enable audio playback
> over USB/DisplayPort and HDMI.  The HDMI port is not yet enabled, but it
> should carry respective DAI name prefix regardless.
> 
> Reviewed-by: Abel Vesa <abel.vesa@...aro.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
> 
> ---

(something's inserting a \n before --- in your latest patches but I
don't know if this is a problem)

[...]

> +		displayport-2-dai-link {
> +			link-name = "DisplayPort2 Playback";
> +
> +			codec {
> +				sound-dai = <&mdss_dp2>;

How does this work out with fw_devlink?

Konrad