watchdog: w83627hf_wdt: Add support for NCT6791 and NCT6792

The watchdog functionality in both chips is almost identical to NCT6779.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

2 files changed, 15 insertions, 1 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 4fd4a13cb261..60a2bf400082 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1015,6 +1015,8 @@ config W83627HF_WDT
                 NCT6775
                 NCT6776
                 NCT6779
+                NCT6791
+                NCT6792
 
           This watchdog simply watches your kernel to make sure it doesn't
           freeze, and if it does, it reboots your computer after a certain
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index 7165704a3e33..5824e25eebbb 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -50,7 +50,7 @@ static int cr_wdt_control;	/* WDT control register */
 
 enum chips { w83627hf, w83627s, w83697hf, w83697ug, w83637hf, w83627thf,
              w83687thf, w83627ehf, w83627dhg, w83627uhg, w83667hg, w83627dhg_p,
-             w83667hg_b, nct6775, nct6776, nct6779 };
+             w83667hg_b, nct6775, nct6776, nct6779, nct6791, nct6792 };
 
 static int timeout;                     /* in seconds */
 module_param(timeout, int, 0);
@@ -95,6 +95,8 @@ MODULE_PARM_DESC(early_disable, "Disable watchdog at boot time (default=0)");
 #define NCT6775_ID              0xb4
 #define NCT6776_ID              0xc3
 #define NCT6779_ID              0xc5
+#define NCT6791_ID              0xc8
+#define NCT6792_ID              0xc9
 
 #define W83627HF_WDT_TIMEOUT    0xf6
 #define W83697HF_WDT_TIMEOUT    0xf4
@@ -195,6 +197,8 @@ static int w83627hf_init(struct watchdog_device *wdog, enum chips chip)
         case nct6775:
         case nct6776:
         case nct6779:
+        case nct6791:
+        case nct6792:
                 /*
                  * These chips have a fixed WDTO# output pin (W83627UHG),
                  * or support more than one WDTO# output pin.
@@ -395,6 +399,12 @@ static int wdt_find(int addr)
         case NCT6779_ID:
                 ret = nct6779;
                 break;
+        case NCT6791_ID:
+                ret = nct6791;
+                break;
+        case NCT6792_ID:
+                ret = nct6792;
+                break;
         case 0xff:
                 ret = -ENODEV;
                 break;
@@ -428,6 +438,8 @@ static int __init wdt_init(void)
                 "NCT6775",
                 "NCT6776",
                 "NCT6779",
+                "NCT6791",
+                "NCT6792",
         };
 
         wdt_io = 0x2e;