linux-kernel - Re: [PATCH v3] arm64: dts: qcom: x1-crd: add USB DisplayPort audio

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Message-ID: <42d77221-7872-4c04-8c72-4d63f8881d15@kernel.org>
Date: Mon, 9 Feb 2026 10:29:27 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
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: Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: Re: [PATCH v3] arm64: dts: qcom: x1-crd: add USB DisplayPort audio

On 09/02/2026 10:26, Krzysztof Kozlowski wrote:
> Add support for playing audio over USB DisplayPort (the two left USB-C
> ports on the CRD device).
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@....qualcomm.com>
> 
> ---
> 
> Answering comments:
> 1. No clue about third port. I do not have a reliable working CRD
>    device, so I cannot test it. I add what I tested.
> 
> 2. Topology and Alsa UCM were merged long time ago, so btw without this
>    patch CRD is negativelly affected or even broken (ALSA tries to
>    configure non-existing DAI links)...
> 
> Can finally this be applied after a year?
> 
> Changes since v2:
> 1. Rebase - sound-name-prefix are now part of DTSI.

And this part did not happen, so v4 is coming :(


Best regards,
Krzysztof