linux-kernel - [PATCH 7/8] arm64: dts: qcom: msm8996: Disable SS instance in Parkmode for USB

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20240704152848.3380602-8-quic_kriskura@quicinc.com>
Date: Thu, 4 Jul 2024 20:58:47 +0530
From: Krishna Kurapati <quic_kriskura@...cinc.com>
To: 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>, 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>, Krishna Kurapati <quic_kriskura@...cinc.com>,
        <stable@...r.kernel.org>
Subject: [PATCH 7/8] arm64: dts: qcom: msm8996: Disable SS instance in Parkmode for USB

For Gen-1 targets like MSM8996, it is seen that stressing out the
controller in host mode 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 instance in park mode for MSM8996 to mitigate this issue.

Cc: <stable@...r.kernel.org>
Fixes: 1e39255ed29d ("arm64: dts: msm8996: Add device node for qcom,dwc3")
Signed-off-by: Krishna Kurapati <quic_kriskura@...cinc.com>
---
 arch/arm64/boot/dts/qcom/msm8996.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8996.dtsi b/arch/arm64/boot/dts/qcom/msm8996.dtsi
index 2b20cedfe26c..0fd2b1b944a5 100644
--- a/arch/arm64/boot/dts/qcom/msm8996.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8996.dtsi
@@ -3101,6 +3101,7 @@ usb3_dwc3: usb@...0000 {
 				snps,dis_u2_susphy_quirk;
 				snps,dis_enblslpm_quirk;
 				snps,is-utmi-l1-suspend;
+				snps,parkmode-disable-ss-quirk;
 				tx-fifo-resize;
 			};
 		};
-- 
2.34.1