linux-kernel - Re: [PATCH v2] arm64: dts: qcom: x1-crd: add USB DisplayPort audio

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Message-ID: <fvyx662cayttlyrniyjifu7vi5sflmptzs323wm4a7pey7ethz@o2xq2j4ifwx4>
Date: Sat, 5 Jul 2025 15:46:26 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: 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,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: Re: [PATCH v2] arm64: dts: qcom: x1-crd: add USB DisplayPort audio

On Tue, Jun 24, 2025 at 02:29:34PM +0200, 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@...aro.org>
> ---
> 
> Changes since v1:
> 1. Rebase (x1-crd.dtsi appeared)
> 2. Re-order cpu/codec
> 3. Add blank line before status for mdss_dp
> 4. Tags
> ---
>  arch/arm64/boot/dts/qcom/x1-crd.dtsi | 36 ++++++++++++++++++++++++++++
>  1 file changed, 36 insertions(+)

Just for my understanding:
- Is the corresponding topology file updated? Will this work with the
  current topology from linux-firmware release?
- Do audio drivers handle playback if DP gets disconnected or
  reconnected?

-- 
With best wishes
Dmitry