watchdog: digicolor_wdt: use core restart handler
Get rid of the custom restart handler by using the one provided by the
watchdog core.
Signed-off-by: Damien Riegel <damien.riegel@savoirfairelinux.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
diff --git a/drivers/watchdog/digicolor_wdt.c b/drivers/watchdog/digicolor_wdt.c
index 50abe1b..1ccb0b2 100644
--- a/drivers/watchdog/digicolor_wdt.c
+++ b/drivers/watchdog/digicolor_wdt.c
@@ -15,7 +15,6 @@
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/watchdog.h>
-#include <linux/reboot.h>
#include <linux/platform_device.h>
#include <linux/of_address.h>
@@ -28,7 +27,6 @@
struct dc_wdt {
void __iomem *base;
struct clk *clk;
- struct notifier_block restart_handler;
spinlock_t lock;
};
@@ -50,16 +48,15 @@
spin_unlock_irqrestore(&wdt->lock, flags);
}
-static int dc_restart_handler(struct notifier_block *this, unsigned long mode,
- void *cmd)
+static int dc_wdt_restart(struct watchdog_device *wdog)
{
- struct dc_wdt *wdt = container_of(this, struct dc_wdt, restart_handler);
+ struct dc_wdt *wdt = watchdog_get_drvdata(wdog);
dc_wdt_set(wdt, 1);
/* wait for reset to assert... */
mdelay(500);
- return NOTIFY_DONE;
+ return 0;
}
static int dc_wdt_start(struct watchdog_device *wdog)
@@ -104,6 +101,7 @@
.stop = dc_wdt_stop,
.set_timeout = dc_wdt_set_timeout,
.get_timeleft = dc_wdt_get_timeleft,
+ .restart = dc_wdt_restart,
};
static struct watchdog_info dc_wdt_info = {
@@ -148,6 +146,7 @@
spin_lock_init(&wdt->lock);
watchdog_set_drvdata(&dc_wdt_wdd, wdt);
+ watchdog_set_restart_priority(&dc_wdt_wdd, 128);
watchdog_init_timeout(&dc_wdt_wdd, timeout, dev);
ret = watchdog_register_device(&dc_wdt_wdd);
if (ret) {
@@ -155,12 +154,6 @@
goto err_iounmap;
}
- wdt->restart_handler.notifier_call = dc_restart_handler;
- wdt->restart_handler.priority = 128;
- ret = register_restart_handler(&wdt->restart_handler);
- if (ret)
- dev_warn(&pdev->dev, "cannot register restart handler\n");
-
return 0;
err_iounmap:
@@ -172,7 +165,6 @@
{
struct dc_wdt *wdt = platform_get_drvdata(pdev);
- unregister_restart_handler(&wdt->restart_handler);
watchdog_unregister_device(&dc_wdt_wdd);
iounmap(wdt->base);