From: Johan Hovold <johan+linaro@kernel.org>
To: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>
Cc: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Jonathan Marek <jonathan@marek.ca>,
Stephan Gerhold <stephan.gerhold@linaro.org>,
Abel Vesa <abel.vesa@linaro.org>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, regressions@lists.linux.dev,
Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH v2 0/2] arm64: dts: qcom: x1e80100: fix USB OTG regressions
Date: Mon, 9 Dec 2024 12:19:03 +0100 [thread overview]
Message-ID: <20241209111905.31017-1-johan+linaro@kernel.org> (raw)
A recent change enabling OTG mode on the Lenovo ThinkPad T14s USB-C
ports can break SuperSpeed device hotplugging.
Abel noticed that the corresponding commit for the CRD also triggers a
hard reset during resume from suspend.
With retimer (and orientation detection) support not even merged yet,
let's revert at least until we have stable host mode in mainline.
Note that Stephan and Dmitry have already identified other problems with
the offending commits here:
https://lore.kernel.org/all/ZxZO6Prrm2ITUZMQ@linaro.org/
https://lore.kernel.org/all/hw2pdof4ajadjsjrb44f2q4cz4yh5qcqz5d3l7gjt2koycqs3k@xx5xvd26uyef
Johan
Changes in v2
- revert also the corresponding patch for the CRD which breaks suspend
Johan Hovold (2):
Revert "arm64: dts: qcom: x1e78100-t14s: enable otg on usb-c ports"
Revert "arm64: dts: qcom: x1e80100-crd: enable otg on usb ports"
.../boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts | 8 ++++++++
arch/arm64/boot/dts/qcom/x1e80100-crd.dts | 12 ++++++++++++
2 files changed, 20 insertions(+)
--
2.45.2
next reply other threads:[~2024-12-09 11:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-09 11:19 Johan Hovold [this message]
2024-12-09 11:19 ` [PATCH v2 1/2] Revert "arm64: dts: qcom: x1e78100-t14s: enable otg on usb-c ports" Johan Hovold
2024-12-09 11:19 ` [PATCH v2 2/2] Revert "arm64: dts: qcom: x1e80100-crd: enable otg on usb ports" Johan Hovold
2024-12-09 13:23 ` [PATCH v2 0/2] arm64: dts: qcom: x1e80100: fix USB OTG regressions Dmitry Baryshkov
2024-12-09 15:30 ` Johan Hovold
2024-12-09 16:00 ` Dmitry Baryshkov
2024-12-10 10:45 ` Johan Hovold
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