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 (file)
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -75,15 +75,15 @@ static unsigned short address;
 #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)
 {