watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT

stable inclusion
from stable-5.10.80
commit ef9f7ab9ba207b909bffdeda6643cd6c14e8775b
bugzilla: 185821 https://gitee.com/openeuler/kernel/issues/I4L7CG

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ef9f7ab9ba207b909bffdeda6643cd6c14e8775b



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[ Upstream commit 164483c7 ]

The fintek watchdog timer can configure timeouts of second granularity
only up to 255 seconds. Beyond that, the timeout needs to be configured
with minute granularity. WDIOC_GETTIMEOUT should report the actual
timeout configured, not just echo back the timeout configured by the
user. Do so.

Fixes: 96cb4eb0 ("watchdog: f71808e_wdt: new watchdog driver for Fintek F71808E and F71882FG")
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Link: https://lore.kernel.org/r/5e17960fe8cc0e3cb2ba53de4730b75d9a0f33d5.1628525954.git-series.a.fatoum@pengutronix.de


Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Chen Jun <chenjun102@huawei.com>
Reviewed-by: Weilong Chen <chenweilong@huawei.com>
Acked-by: Weilong Chen <chenweilong@huawei.com>

Signed-off-by: Chen Jun <chenjun102@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>