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Commit 198ca015 authored by Diego Elio Pettenò's avatar Diego Elio Pettenò Committed by Wim Van Sebroeck
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watchdog: it87_wdt: Add support for IT8728F watchdog. 



This works the same way IT8721F works, but it supports WDT_PWROK
(checked on the datasheet).

Signed-off-by: default avatarDiego Elio Pettenò <flameeyes@flameeyes.eu>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent 7050bd54

drivers/watchdog/Kconfig

+6 −1
Original line number Diff line number Diff line
@@ -596,7 +596,12 @@ config IT87_WDT 
	depends on X86 && EXPERIMENTAL

	---help---

	  This is the driver for the hardware watchdog on the ITE IT8702,

	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips.

	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728

	  Super I/O chips.



	  If the driver does not work, then make sure that the game port in

	  the BIOS is enabled.



	  This watchdog simply watches your kernel to make sure it doesn't

	  freeze, and if it does, it reboots your computer after a certain

	  amount of time.

drivers/watchdog/it87_wdt.c

+5 −2
Original line number Diff line number Diff line
@@ -12,7 +12,8 @@ 
 *		    http://www.ite.com.tw/

 *

 *	Support of the watchdog timers, which are available on

 *	IT8702, IT8712, IT8716, IT8718, IT8720, IT8721 and IT8726.

 *	IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726

 *	and IT8728.

 *

 *	This program is free software; you can redistribute it and/or

 *	modify it under the terms of the GNU General Public License
@@ -84,6 +85,7 @@ 
#define IT8720_ID	0x8720

#define IT8721_ID	0x8721

#define IT8726_ID	0x8726	/* the data sheet suggest wrongly 0x8716 */

#define IT8728_ID	0x8728



/* GPIO Configuration Registers LDN=0x07 */

#define WDTCTRL		0x71
@@ -95,7 +97,7 @@ 
#define WDT_CIRINT	0x80

#define WDT_MOUSEINT	0x40

#define WDT_KYBINT	0x20

#define WDT_GAMEPORT	0x10 /* not in it8718, it8720, it8721 */

#define WDT_GAMEPORT	0x10 /* not in it8718, it8720, it8721, it8728 */

#define WDT_FORCE	0x02

#define WDT_ZERO	0x01
@@ -616,6 +618,7 @@ static int __init it87_wdt_init(void) 
	case IT8718_ID:

	case IT8720_ID:

	case IT8721_ID:

	case IT8728_ID:

		max_units = 65535;

		try_gameport = 0;

		break;