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Message-ID: <56B40FCD.1010802@solution-space.com>
Date: Fri, 5 Feb 2016 10:58:21 +0800
From: Rob Kramer <rob@...ution-space.com>
To: Wim Van Sebroeck <wim@...ana.be>
Cc: linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org
Subject: [PATCH] watchdog: w83627hf: Added NCT6102D support.
As used in (and tested on) the ASRock IMB-150 board. Implementation is
identical to other NCT chips, just with different registers.
Signed-off-by: Rob Kramer <rob@...ution-space.com>
---
drivers/watchdog/Kconfig | 1 +
drivers/watchdog/w83627hf_wdt.c | 22 +++++++++++++++++++---
2 files changed, 20 insertions(+), 3 deletions(-)
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 4f0e7be..318d8bc 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1140,6 +1140,7 @@ config W83627HF_WDT
NCT6779
NCT6791
NCT6792
+ NCT6102D/04D/06D
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 cab14bc..09e8003 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -45,10 +45,11 @@
static int wdt_io;
static int cr_wdt_timeout; /* WDT timeout register */
static int cr_wdt_control; /* WDT control register */
+static int cr_wdt_csr; /* WDT control & status register */
enum chips { w83627hf, w83627s, w83697hf, w83697ug, w83637hf, w83627thf,
w83687thf, w83627ehf, w83627dhg, w83627uhg, w83667hg,
w83627dhg_p,
- w83667hg_b, nct6775, nct6776, nct6779, nct6791, nct6792 };
+ w83667hg_b, nct6775, nct6776, nct6779, nct6791, nct6792,
nct6102 };
static int timeout; /* in seconds */
module_param(timeout, int, 0);
@@ -92,15 +93,21 @@ MODULE_PARM_DESC(early_disable, "Disable watchdog at
boot time (default=0)");
#define W83667HG_B_ID 0xb3
#define NCT6775_ID 0xb4
#define NCT6776_ID 0xc3
+#define NCT6102_ID 0xc4
#define NCT6779_ID 0xc5
#define NCT6791_ID 0xc8
#define NCT6792_ID 0xc9
#define W83627HF_WDT_TIMEOUT 0xf6
#define W83697HF_WDT_TIMEOUT 0xf4
+#define NCT6102D_WDT_TIMEOUT 0xf1
#define W83627HF_WDT_CONTROL 0xf5
#define W83697HF_WDT_CONTROL 0xf3
+#define NCT6102D_WDT_CONTROL 0xf0
+
+#define W836X7HF_WDT_CSR 0xf7
+#define NCT6102D_WDT_CSR 0xf2
static void superio_outb(int reg, int val)
{
@@ -197,6 +204,7 @@ static int w83627hf_init(struct watchdog_device
*wdog, enum chips chip)
case nct6779:
case nct6791:
case nct6792:
+ case nct6102:
/*
* These chips have a fixed WDTO# output pin (W83627UHG),
* or support more than one WDTO# output pin.
@@ -229,8 +237,8 @@ static int w83627hf_init(struct watchdog_device
*wdog, enum chips chip)
superio_outb(cr_wdt_control, t);
/* reset trigger, disable keyboard & mouse turning off watchdog */
- t = superio_inb(0xF7) & ~0xD0;
- superio_outb(0xF7, t);
+ t = superio_inb(cr_wdt_csr) & ~0xD0;
+ superio_outb(cr_wdt_csr, t);
superio_exit();
@@ -322,6 +330,7 @@ static int wdt_find(int addr)
cr_wdt_timeout = W83627HF_WDT_TIMEOUT;
cr_wdt_control = W83627HF_WDT_CONTROL;
+ cr_wdt_csr = W836X7HF_WDT_CSR;
ret = superio_enter();
if (ret)
@@ -387,6 +396,12 @@ static int wdt_find(int addr)
case NCT6792_ID:
ret = nct6792;
break;
+ case NCT6102_ID:
+ ret = nct6102;
+ cr_wdt_timeout = NCT6102D_WDT_TIMEOUT;
+ cr_wdt_control = NCT6102D_WDT_CONTROL;
+ cr_wdt_csr = NCT6102D_WDT_CSR;
+ break;
case 0xff:
ret = -ENODEV;
break;
@@ -422,6 +437,7 @@ static int __init wdt_init(void)
"NCT6779",
"NCT6791",
"NCT6792",
+ "NCT6102",
};
wdt_io = 0x2e;
--
2.6.2
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