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Commit a77841d5 authored by Guenter Roeck's avatar Guenter Roeck Committed by Wim Van Sebroeck
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watchdog: w83627hf_wdt: Add support for NCT6791 and NCT6792 



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

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 1cc7495c

drivers/watchdog/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -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

drivers/watchdog/w83627hf_wdt.c

+13 −1
Original line number Diff line number Diff line
@@ -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;