82 lines
2.5 KiB
Diff
82 lines
2.5 KiB
Diff
|
From 823769d2e6622a48276bee35b2dad5ba77cbdc25 Mon Sep 17 00:00:00 2001
|
||
|
|
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
|
||
|
|
Date: Sun, 25 Jan 2015 11:40:57 +0100
|
||
|
|
Subject: [PATCH] watchdog: bcm47xx_wdt.c: add restart handler support
|
||
|
|
MIME-Version: 1.0
|
||
|
|
Content-Type: text/plain; charset=UTF-8
|
||
|
|
Content-Transfer-Encoding: 8bit
|
||
|
|
|
||
|
|
Just like in case of other watchdog drivers, use the new kernel core
|
||
|
|
API to provide restart support.
|
||
|
|
|
||
|
|
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
|
||
|
|
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
|
||
|
|
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
||
|
|
---
|
||
|
|
drivers/watchdog/bcm47xx_wdt.c | 21 ++++++++++++++++++++-
|
||
|
|
include/linux/bcm47xx_wdt.h | 1 +
|
||
|
|
2 files changed, 21 insertions(+), 1 deletion(-)
|
||
|
|
|
||
|
|
diff --git a/drivers/watchdog/bcm47xx_wdt.c b/drivers/watchdog/bcm47xx_wdt.c
|
||
|
|
index 9816485..b28a072 100644
|
||
|
|
--- a/drivers/watchdog/bcm47xx_wdt.c
|
||
|
|
+++ b/drivers/watchdog/bcm47xx_wdt.c
|
||
|
|
@@ -169,6 +169,17 @@ static int bcm47xx_wdt_notify_sys(struct notifier_block *this,
|
||
|
|
return NOTIFY_DONE;
|
||
|
|
}
|
||
|
|
|
||
|
|
+static int bcm47xx_wdt_restart(struct notifier_block *this, unsigned long mode,
|
||
|
|
+ void *cmd)
|
||
|
|
+{
|
||
|
|
+ struct bcm47xx_wdt *wdt;
|
||
|
|
+
|
||
|
|
+ wdt = container_of(this, struct bcm47xx_wdt, restart_handler);
|
||
|
|
+ wdt->timer_set(wdt, 1);
|
||
|
|
+
|
||
|
|
+ return NOTIFY_DONE;
|
||
|
|
+}
|
||
|
|
+
|
||
|
|
static struct watchdog_ops bcm47xx_wdt_soft_ops = {
|
||
|
|
.owner = THIS_MODULE,
|
||
|
|
.start = bcm47xx_wdt_soft_start,
|
||
|
|
@@ -209,15 +220,23 @@ static int bcm47xx_wdt_probe(struct platform_device *pdev)
|
||
|
|
if (ret)
|
||
|
|
goto err_timer;
|
||
|
|
|
||
|
|
- ret = watchdog_register_device(&wdt->wdd);
|
||
|
|
+ wdt->restart_handler.notifier_call = &bcm47xx_wdt_restart;
|
||
|
|
+ wdt->restart_handler.priority = 64;
|
||
|
|
+ ret = register_restart_handler(&wdt->restart_handler);
|
||
|
|
if (ret)
|
||
|
|
goto err_notifier;
|
||
|
|
|
||
|
|
+ ret = watchdog_register_device(&wdt->wdd);
|
||
|
|
+ if (ret)
|
||
|
|
+ goto err_handler;
|
||
|
|
+
|
||
|
|
dev_info(&pdev->dev, "BCM47xx Watchdog Timer enabled (%d seconds%s%s)\n",
|
||
|
|
timeout, nowayout ? ", nowayout" : "",
|
||
|
|
soft ? ", Software Timer" : "");
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
+err_handler:
|
||
|
|
+ unregister_restart_handler(&wdt->restart_handler);
|
||
|
|
err_notifier:
|
||
|
|
unregister_reboot_notifier(&wdt->notifier);
|
||
|
|
err_timer:
|
||
|
|
diff --git a/include/linux/bcm47xx_wdt.h b/include/linux/bcm47xx_wdt.h
|
||
|
|
index b708786..5582c21 100644
|
||
|
|
--- a/include/linux/bcm47xx_wdt.h
|
||
|
|
+++ b/include/linux/bcm47xx_wdt.h
|
||
|
|
@@ -16,6 +16,7 @@ struct bcm47xx_wdt {
|
||
|
|
|
||
|
|
struct watchdog_device wdd;
|
||
|
|
struct notifier_block notifier;
|
||
|
|
+ struct notifier_block restart_handler;
|
||
|
|
|
||
|
|
struct timer_list soft_timer;
|
||
|
|
atomic_t soft_ticks;
|
||
|
|
--
|
||
|
|
1.8.4.5
|
||
|
|
|