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watchdog: it87_wdt: add IT8620E ID

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This adds IT8620E chip ID to it87_wdt driver.
Such chip is often found on current Gigabyte motherboards, it is allegedly
custom made for this manufacturer.

Upon testing it looks like it has a 16-bit timer and cannot be reset via
game port (only via CIR), so it is similar to IT87{18,20,21,28,83} chips.

Tested on GA-F2A88XM-HD3P board.

Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Maciej S. Szmigiero 2016-12-15 23:52:36 +01:00 committed by Guenter Roeck
parent f01d74cc5a
commit 067161281f
2 changed files with 5 additions and 3 deletions
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4
drivers/watchdog/Kconfig
View File

@ -1008,8 +1008,8 @@ config IT87_WDT
tristate "IT87 Watchdog Timer"
depends on X86
---help---
This is the driver for the hardware watchdog on the ITE IT8702,
IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
This is the driver for the hardware watchdog on the ITE IT8620,
IT8702, 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

4
drivers/watchdog/it87_wdt.c
View File

@ -12,7 +12,7 @@
* http://www.ite.com.tw/
*
* Support of the watchdog timers, which are available on
* IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726,
* IT8620, IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726,
* IT8728 and IT8783.
*
* This program is free software; you can redistribute it and/or
@ -78,6 +78,7 @@
/* Chip Id numbers */
#define NO_DEV_ID 0xffff
#define IT8620_ID 0x8620
#define IT8702_ID 0x8702
#define IT8705_ID 0x8705
#define IT8712_ID 0x8712
@ -630,6 +631,7 @@ static int __init it87_wdt_init(void)
case IT8726_ID:
max_units = 65535;
break;
case IT8620_ID:
case IT8718_ID:
case IT8720_ID:
case IT8721_ID: