linux-kernel - Re: [PATCH 0/8] Disable SS instances in parkmode for Gen-1 targets

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Message-ID: <d17ed113-9293-4286-ad75-4ce2c98e4d12@linaro.org>
Date: Sat, 6 Jul 2024 14:34:53 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Krishna Kurapati <quic_kriskura@...cinc.com>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Rob Herring <robh@...nel.org>,
 Bjorn Andersson <andersson@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
 Baruch Siach <baruch@...s.co.il>, Kathiravan T <quic_kathirav@...cinc.com>,
 Sivaprakash Murugesan <sivaprak@...eaurora.org>,
 Andy Gross <andy.gross@...aro.org>, Jeffrey Hugo <quic_jhugo@...cinc.com>,
 Douglas Anderson <dianders@...omium.org>, Stephen Boyd
 <swboyd@...omium.org>, Iskren Chernev <me@...ren.info>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...ainline.org>,
 Vivek Gautam <vivek.gautam@...eaurora.org>
Cc: linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, quic_ppratap@...cinc.com, quic_jackp@...cinc.com
Subject: Re: [PATCH 0/8] Disable SS instances in parkmode for Gen-1 targets

On 4.07.2024 5:28 PM, Krishna Kurapati wrote:
> For targets that have only USB3 Gen-1 DWC3 controllers, it is recommended
> to disable SS instance in park mode to avoid HC died error when working
> in host mode in situations where the controller is stressed out:
> 
>  xhci-hcd.12.auto: xHCI host not responding to stop endpoint command
>  xhci-hcd.12.auto: xHCI host controller not responding, assume dead
>  xhci-hcd.12.auto: HC died; cleaning up

Thanks for looking into this!

Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Konrad