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Subject[PATCH] watchdog: w83627hf_wdt: Add support for NCT6791 and NCT6792
Date
The watchdog functionality in both chips is almost identical to NCT6779.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
Tested on system with NCT6792.

drivers/watchdog/Kconfig | 2 ++
drivers/watchdog/w83627hf_wdt.c | 14 +++++++++++++-
2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 08f41ad..97ac488 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1005,6 +1005,8 @@ 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 7165704..5824e25 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;
--
2.1.0


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