Commit be281588 authored by Guenter Roeck's avatar Guenter Roeck Committed by Wim Van Sebroeck

watchdog: w83627hf_wdt: Add early_disable module parameter

Add early_disable module parameter to match functionality previously
available in the w83697hf_wdt driver.
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent ebc5e336
......@@ -64,6 +64,10 @@ MODULE_PARM_DESC(nowayout,
"Watchdog cannot be stopped once started (default="
__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
static int early_disable;
module_param(early_disable, int, 0);
MODULE_PARM_DESC(early_disable, "Disable watchdog at boot time (default=0)");
/*
* Kernel methods.
*/
......@@ -208,10 +212,15 @@ static int w83627hf_init(struct watchdog_device *wdog, enum chips chip)
t = superio_inb(cr_wdt_timeout);
if (t != 0) {
if (early_disable) {
pr_warn("Stopping previously enabled watchdog until userland kicks in\n");
superio_outb(cr_wdt_timeout, 0);
} else {
pr_info("Watchdog already running. Resetting timeout to %d sec\n",
wdog->timeout);
superio_outb(cr_wdt_timeout, wdog->timeout);
}
}
/* set second mode & disable keyboard turning off watchdog */
t = superio_inb(cr_wdt_control) & ~0x0C;
......
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