watchdog: dw_wdt: initialise TOP_INIT in dw_wdt_set_top()
authorJisheng Zhang <jszhang@marvell.com>
Tue, 23 Sep 2014 07:42:11 +0000 (15:42 +0800)
committerWim Van Sebroeck <wim@iguana.be>
Mon, 20 Oct 2014 18:50:28 +0000 (20:50 +0200)
commitdfa07141e7a792aecf98a8a99dd40df0bf91bce2
treee968ed1a94cc71d8e97abe72914a2b4112ba0983
parent191891c0378f44aec8e06e889a08d0b76fe6c5cb
watchdog: dw_wdt: initialise TOP_INIT in dw_wdt_set_top()

The TOP_INIT, ie bit 4-7 of the WDOG_TIMEOUT_RANGE_REG_OFFSET register
may be zero, so the timeout period may be very short after initialization
is done, thus the system may be reset soon after enabling. We fix this
problem by also initialising the TOP_INIT when setting TOP in function
dw_wdt_set_top().

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
drivers/watchdog/dw_wdt.c