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-rw-r--r--drivers/watchdog/it8712f_wdt.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
index b08fae65bb0..b32c6c045b1 100644
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -85,6 +85,14 @@ static unsigned short address;
#define WDT_OUT_PWROK 0x10 /* Pulse PWROK on timeout */
#define WDT_OUT_KRST 0x40 /* Pulse reset on timeout */
+static int wdt_control_reg = WDT_RESET_GAME;
+module_param(wdt_control_reg, int, 0);
+MODULE_PARM_DESC(wdt_control_reg, "Value to write to watchdog control "
+ "register. The default WDT_RESET_GAME resets the timer on "
+ "game port reads that this driver generates. You can also "
+ "use KBD, MOUSE or CIR if you have some external way to "
+ "generate those interrupts.");
+
static int superio_inb(int reg)
{
outb(reg, REG);
@@ -131,7 +139,8 @@ static inline void superio_exit(void)
static inline void it8712f_wdt_ping(void)
{
- inb(address);
+ if (wdt_control_reg & WDT_RESET_GAME)
+ inb(address);
}
static void it8712f_wdt_update_margin(void)
@@ -170,7 +179,7 @@ static void it8712f_wdt_enable(void)
superio_enter();
superio_select(LDN_GPIO);
- superio_outb(WDT_RESET_GAME, WDT_CONTROL);
+ superio_outb(wdt_control_reg, WDT_CONTROL);
it8712f_wdt_update_margin();