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From:   Kevin Hilman <khilman@baylibre.com>
To:     Neil Armstrong <narmstrong@baylibre.com>, balbi@kernel.org
Cc:     Neil Armstrong <narmstrong@baylibre.com>,
        linux-usb@vger.kernel.org, linux-amlogic@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Dongjin Kim <tobetter@gmail.com>,
        Jianxin Pan <jianxin.pan@amlogic.com>, Tim <elatllat@gmail.com>
Subject: Re: [PATCH v4 3/3] arm64: dts: g12-common: add parkmode_disable_ss_quirk on DWC3 controller
In-Reply-To: <20200221091532.8142-4-narmstrong@baylibre.com>
References: <20200221091532.8142-1-narmstrong@baylibre.com> <20200221091532.8142-4-narmstrong@baylibre.com>
Date:   Sat, 29 Feb 2020 18:31:27 +0100
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Sender: linux-kernel-owner@vger.kernel.org
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Neil Armstrong <narmstrong@baylibre.com> 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@gmail.com>
> Cc: Jianxin Pan <jianxin.pan@amlogic.com>
> Reported-by: Tim <elatllat@gmail.com>
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>

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