watchdog: it8712f_wdt: Add comments for config/control register names
Signed-off-by: Timo Juhani Lindfors <timo.lindfors@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
index f52c162..b08fae6 100644
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -75,15 +75,15 @@
#define WDT_CONFIG 0x72 /* WDT Register: Configuration */
#define WDT_TIMEOUT 0x73 /* WDT Register: Timeout Value */
-#define WDT_RESET_GAME 0x10
-#define WDT_RESET_KBD 0x20
-#define WDT_RESET_MOUSE 0x40
-#define WDT_RESET_CIR 0x80
+#define WDT_RESET_GAME 0x10 /* Reset timer on read or write to game port */
+#define WDT_RESET_KBD 0x20 /* Reset timer on keyboard interrupt */
+#define WDT_RESET_MOUSE 0x40 /* Reset timer on mouse interrupt */
+#define WDT_RESET_CIR 0x80 /* Reset timer on consumer IR interrupt */
#define WDT_UNIT_SEC 0x80 /* If 0 in MINUTES */
-#define WDT_OUT_PWROK 0x10
-#define WDT_OUT_KRST 0x40
+#define WDT_OUT_PWROK 0x10 /* Pulse PWROK on timeout */
+#define WDT_OUT_KRST 0x40 /* Pulse reset on timeout */
static int superio_inb(int reg)
{