From a04c3f01d33f4661424deeff67913699a0910c53 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Sun, 3 Nov 2013 18:52:43 +0100
Subject: [PATCH] watchdog: at91sam9_wdt: avoid spurious watchdog reset during
 init

Use the min_heartbeat value instead of the calculated heartbeat value for
the first watchdog reset to avoid spurious watchdog reset.

Resetting the watchdog counter during init might lead to a watchdog fault
reset because the watchdog counter has to be running for at least
min_heartbeat.

Resetting the watchdog counter after heartbeat might lead to a watchdog
timeout reset because the watchdog counter is running for more than
max_heartbeat time.

Using min_heartbeat instead of heartbeat does not guarantee that the
watchdog won't trigger a reset, but at least it reduces the chances to be
in such a case.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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