From 15013ad813f6544be8e79afc23672745950d59bc Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 28 Feb 2016 13:12:18 -0800 Subject: watchdog: Add support for minimum time between heartbeats Some watchdogs require a minimum time between heartbeats. Examples are the watchdogs in DA9062 and AT91SAM9x. Signed-off-by: Guenter Roeck Signed-off-by: Wim Van Sebroeck --- include/linux/watchdog.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/watchdog.h') diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index e2f45549b243..51732d6c9555 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -65,6 +65,8 @@ struct watchdog_ops { * @max_timeout:The watchdog devices maximum timeout value (in seconds) * as configurable from user space. Only relevant if * max_hw_heartbeat_ms is not provided. + * @min_hw_heartbeat_ms: + * Minimum time between heartbeats, in milli-seconds. * @max_hw_heartbeat_ms: * Hardware limit for maximum timeout, in milli-seconds. * Replaces max_timeout if specified. @@ -95,6 +97,7 @@ struct watchdog_device { unsigned int timeout; unsigned int min_timeout; unsigned int max_timeout; + unsigned int min_hw_heartbeat_ms; unsigned int max_hw_heartbeat_ms; struct notifier_block reboot_nb; struct notifier_block restart_nb; -- cgit v1.2.3-59-g8ed1b