linux-kernel - Re: [PATCH v2 1/2] arm64: dts: qcom: sc7180: Disable SuperSpeed instances in park mode

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Message-ID: <CAD=FV=XKKtd3vArUzo+5_o17Prm-G5_tLBCzv+5q3gp_UfR8gQ@mail.gmail.com>
Date: Tue, 4 Jun 2024 07:31:35 -0700
From: Doug Anderson <dianders@...gle.com>
To: Krishna Kurapati <quic_kriskura@...cinc.com>
Cc: cros-qcom-dts-watchers@...omium.org, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Rob Herring <robh@...nel.org>, 
	Bjorn Andersson <andersson@...nel.org>, Konrad Dybcio <konrad.dybcio@...aro.org>, 
	Conor Dooley <conor+dt@...nel.org>, Stephen Boyd <swboyd@...omium.org>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Matthias Kaehlcke <mka@...omium.org>, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	devicetree@...r.kernel.org, quic_ppratap@...cinc.com, quic_jackp@...cinc.com, 
	stable@...r.kernel.org
Subject: Re: [PATCH v2 1/2] arm64: dts: qcom: sc7180: Disable SuperSpeed
 instances in park mode

Hi,

On Mon, Jun 3, 2024 at 11:07 PM Krishna Kurapati
<quic_kriskura@...cinc.com> wrote:
>
> On SC7180, in host mode, it is observed that stressing out controller
> results in HC died error:
>
>  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
>
> And at this instant only restarting the host mode fixes it. Disable
> SuperSpeed instances in park mode for SC7180 to mitigate this issue.
>
> Reported-by: Doug Anderson <dianders@...gle.com>
> Cc: <stable@...r.kernel.org>
> Fixes: 0b766e7fe5a2 ("arm64: dts: qcom: sc7180: Add USB related nodes")
> Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
> ---
> Removed RB/TB tag from Doug as commit text was updated.

It was a minor change so you could have kept my tags (especially the
Tested-by, which isn't affected by the commit text), but in any case:

Reviewed-by: Douglas Anderson <dianders@...omium.org>
Tested-by: Douglas Anderson <dianders@...omium.org>