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| author | Johan Hovold <johan+linaro@kernel.org> | 2024-12-06 18:24:02 +0100 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2024-12-16 21:31:32 +0100 |
| commit | 1fb5cf0d165afc3be76ec754d1b1013515c3896a (patch) | |
| tree | 6e10b3eee5680530f5e0637621bb4d91cdf2f739 | |
| parent | arm64: dts: qcom: sa8775p: Fix the size of 'addr_space' regions (diff) | |
| download | linux-1fb5cf0d165afc3be76ec754d1b1013515c3896a.tar.xz linux-1fb5cf0d165afc3be76ec754d1b1013515c3896a.zip | |
Revert "arm64: dts: qcom: x1e78100-t14s: enable otg on usb-c ports"
This reverts commit 1a48dd7b9ac809d1bd0fd2fef509abba83433846.
A recent change enabling OTG mode on the Lenovo ThinkPad T14s USB-C
ports can break SuperSpeed device hotplugging. The host controller is
enumerated, but the device is not:
xhci-hcd xhci-hcd.5.auto: xHCI Host Controller
xhci-hcd xhci-hcd.5.auto: new USB bus registered, assigned bus number 3
xhci-hcd xhci-hcd.5.auto: hcc params 0x0110ffc5 hci version 0x110 quirks 0x000080a000000810
xhci-hcd xhci-hcd.5.auto: irq 247, io mem 0x0a800000
xhci-hcd xhci-hcd.5.auto: xHCI Host Controller
xhci-hcd xhci-hcd.5.auto: new USB bus registered, assigned bus number 4
xhci-hcd xhci-hcd.5.auto: Host supports USB 3.1 Enhanced SuperSpeed
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 1 port detected
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 1 port detected
Once this happens on either of the two ports, no amount of disconnecting
and reconnecting makes the SuperSpeed device be enumerated, while
FullSpeed device enumeration still works.
With retimer (and orientation detection) support not even merged yet,
let's revert at least until we have stable host mode in mainline.
Fixes: 1a48dd7b9ac8 ("arm64: dts: qcom: x1e78100-t14s: enable otg on usb-c ports")
Cc: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Link: https://lore.kernel.org/r/20241206172402.20724-1-johan+linaro@kernel.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts index 975550139e10..66513fc8e67a 100644 --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dts @@ -773,6 +773,10 @@ status = "okay"; }; +&usb_1_ss0_dwc3 { + dr_mode = "host"; +}; + &usb_1_ss0_dwc3_hs { remote-endpoint = <&pmic_glink_ss0_hs_in>; }; @@ -801,6 +805,10 @@ status = "okay"; }; +&usb_1_ss1_dwc3 { + dr_mode = "host"; +}; + &usb_1_ss1_dwc3_hs { remote-endpoint = <&pmic_glink_ss1_hs_in>; }; |