Re: [PATCH v4 3/3] arm64: dts: g12-common: add parkmode_disable_ss_quirk on DWC3 controller

From: Kevin Hilman
Date: Sat Feb 29 2020 - 12:31:59 EST


Neil Armstrong <narmstrong@xxxxxxxxxxxx> writes:

> When high load on the DWC3 SuperSpeed port, the controller crashes with:
> [ 221.141621] xhci-hcd xhci-hcd.0.auto: xHCI host not responding to stop endpoint command.
> [ 221.157631] xhci-hcd xhci-hcd.0.auto: Host halt failed, -110
> [ 221.157635] xhci-hcd xhci-hcd.0.auto: xHCI host controller not responding, assume dead
> [ 221.159901] xhci-hcd xhci-hcd.0.auto: xHCI host not responding to stop endpoint command.
> [ 221.159961] hub 2-1.1:1.0: hub_ext_port_status failed (err = -22)
> [ 221.160076] xhci-hcd xhci-hcd.0.auto: HC died; cleaning up
> [ 221.165946] usb 2-1.1-port1: cannot reset (err = -22)
>
> Setting the parkmode_disable_ss_quirk quirk fixes the issue.
>
> CC: Dongjin Kim <tobetter@xxxxxxxxx>
> Cc: Jianxin Pan <jianxin.pan@xxxxxxxxxxx>
> Reported-by: Tim <elatllat@xxxxxxxxx>
> Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>

With the bindings reviewed/acked, I'll queue this DT patch for v5.7.
The binding and driver patches will need to go via the USB tree.

Kevin