Re: [PATCH] watchdog: it87_wdt: add IT8620E ID

From: Guenter Roeck
Date: Thu Dec 15 2016 - 22:45:19 EST


On 12/15/2016 02:52 PM, Maciej S. Szmigiero wrote:
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@xxxxxxxxxxxxxxxxxxxxx>

Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

---
drivers/watchdog/Kconfig | 4 ++--
drivers/watchdog/it87_wdt.c | 4 +++-
2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index f1de1214f10f..acb00b53a520 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -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
diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c
index e54839b12650..b9878c41598f 100644
--- a/drivers/watchdog/it87_wdt.c
+++ b/drivers/watchdog/it87_wdt.c
@@ -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:
--
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