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From: <gregkh@linuxfoundation.org>
To: quic_kriskura@quicinc.com,andersson@kernel.org,konrad.dybcio@linaro.org
Cc: <stable@vger.kernel.org>
Subject: FAILED: patch "[PATCH] arm64: dts: qcom: ipq8074: Disable SS instance in Parkmode" failed to apply to 6.6-stable tree
Date: Thu, 25 Jul 2024 14:50:50 +0200	[thread overview]
Message-ID: <2024072550-editor-edging-bfb4@gregkh> (raw)


The patch below does not apply to the 6.6-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y
git checkout FETCH_HEAD
git cherry-pick -x dc6ba95c6c4400a84cca5b419b34ae852a08cfb5
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<stable@vger.kernel.org>' --in-reply-to '2024072550-editor-edging-bfb4@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^..

Possible dependencies:

dc6ba95c6c44 ("arm64: dts: qcom: ipq8074: Disable SS instance in Parkmode for USB")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From dc6ba95c6c4400a84cca5b419b34ae852a08cfb5 Mon Sep 17 00:00:00 2001
From: Krishna Kurapati <quic_kriskura@quicinc.com>
Date: Thu, 4 Jul 2024 20:58:42 +0530
Subject: [PATCH] arm64: dts: qcom: ipq8074: Disable SS instance in Parkmode
 for USB

For Gen-1 targets like IPQ8074, 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 IPQ8074 to mitigate this issue.

Cc: stable@vger.kernel.org
Fixes: 5e09bc51d07b ("arm64: dts: ipq8074: enable USB support")
Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240704152848.3380602-3-quic_kriskura@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
index 92682d3c9478..284a4553070f 100644
--- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi
@@ -666,6 +666,7 @@ dwc_0: usb@8a00000 {
 				interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>;
 				phys = <&qusb_phy_0>, <&ssphy_0>;
 				phy-names = "usb2-phy", "usb3-phy";
+				snps,parkmode-disable-ss-quirk;
 				snps,is-utmi-l1-suspend;
 				snps,hird-threshold = /bits/ 8 <0x0>;
 				snps,dis_u2_susphy_quirk;
@@ -715,6 +716,7 @@ dwc_1: usb@8c00000 {
 				interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>;
 				phys = <&qusb_phy_1>, <&ssphy_1>;
 				phy-names = "usb2-phy", "usb3-phy";
+				snps,parkmode-disable-ss-quirk;
 				snps,is-utmi-l1-suspend;
 				snps,hird-threshold = /bits/ 8 <0x0>;
 				snps,dis_u2_susphy_quirk;


                 reply	other threads:[~2024-07-25 12:51 UTC|newest]

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