linux-kernel - [PATCH v2 3/3] arm64: dts: g12-common: add parkmode_disable_ss

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Date:   Thu,  9 Jan 2020 11:15:35 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     balbi@...nel.org, khilman@...libre.com
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-usb@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Dongjin Kim <tobetter@...il.com>,
        Jianxin Pan <jianxin.pan@...ogic.com>, Tim <elatllat@...il.com>
Subject: [PATCH v2 3/3] arm64: dts: g12-common: add parkmode_disable_ss_quirk on DWC3 controller

When high load on the DWC3 SuperSpee port, the controller crashed as:
[  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@...il.com>
Cc: Jianxin Pan <jianxin.pan@...ogic.com>
Reported-by: Tim <elatllat@...il.com>
Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index 3f39e020f74e..4b002e799e5c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -2381,6 +2381,7 @@
 				dr_mode = "host";
 				snps,dis_u2_susphy_quirk;
 				snps,quirk-frame-length-adjustment;
+				snps,parkmode-disable-ss-quirk;
 			};
 		};

-- 
2.22.0