linux-kernel - reboot on wandboard fails with v4.14.67 (bisected to 2059e527a6)

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Date:   Wed, 29 Aug 2018 11:55:16 +0200
From:   Rasmus Villemoes <rasmus.villemoes@...vas.dk>
To:     stable@...r.kernel.org, Fabio Estevam <fabio.estevam@....com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Sean Nyekjær <Sean.Nyekjaer@...vas.dk>,
        Andrey Smirnov <andrew.smirnov@...il.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Shawn Guo <shawnguo@...nel.org>
Subject: reboot on wandboard fails with v4.14.67 (bisected to 2059e527a6)

We're using imx_v6_v7_defconfig on our Wandboards. After upgrading to
v4.14.67, reboot no longer works (or, well, takes a very long time when
the watchdog is configured).

v4.14.66 works fine, the breakage bisects to
2059e527a659cf16d6bb709f1c8509f7a7623fc4 (ARM: imx_v6_v7_defconfig:
Select ULPI support), and reverting that on top of v4.14.67 again works.

Rasmus