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authorGuenter Roeck <linux@roeck-us.net>2017-01-04 23:24:52 +0300
committerGuenter Roeck <linux@roeck-us.net>2017-02-25 01:00:23 +0300
commit55dbe8f325a2e935c7913d538f9b39acff0f3bfc (patch)
tree50be8ec5e28945044725721e545bc1784ff69c41 /drivers/watchdog/asm9260_wdt.c
parent3b72c41f13e64e4799cb0978d46eb06575456f26 (diff)
downloadlinux-55dbe8f325a2e935c7913d538f9b39acff0f3bfc.tar.xz
watchdog: asm9260_wdt: Use watchdog core to install restart handler
Use the infrastructure provided by the watchdog core to install the restart handler. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/watchdog/asm9260_wdt.c')
-rw-r--r--drivers/watchdog/asm9260_wdt.c22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/watchdog/asm9260_wdt.c b/drivers/watchdog/asm9260_wdt.c
index d0b59ba0f661..028feb6f6e53 100644
--- a/drivers/watchdog/asm9260_wdt.c
+++ b/drivers/watchdog/asm9260_wdt.c
@@ -14,7 +14,6 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
-#include <linux/reboot.h>
#include <linux/reset.h>
#include <linux/watchdog.h>
@@ -59,7 +58,6 @@ struct asm9260_wdt_priv {
struct clk *clk;
struct clk *clk_ahb;
struct reset_control *rst;
- struct notifier_block restart_handler;
void __iomem *iobase;
int irq;
@@ -172,15 +170,14 @@ static irqreturn_t asm9260_wdt_irq(int irq, void *devid)
return IRQ_HANDLED;
}
-static int asm9260_restart_handler(struct notifier_block *this,
- unsigned long mode, void *cmd)
+static int asm9260_restart(struct watchdog_device *wdd, unsigned long action,
+ void *data)
{
- struct asm9260_wdt_priv *priv =
- container_of(this, struct asm9260_wdt_priv, restart_handler);
+ struct asm9260_wdt_priv *priv = watchdog_get_drvdata(wdd);
asm9260_wdt_sys_reset(priv);
- return NOTIFY_DONE;
+ return 0;
}
static const struct watchdog_info asm9260_wdt_ident = {
@@ -196,6 +193,7 @@ static struct watchdog_ops asm9260_wdt_ops = {
.get_timeleft = asm9260_wdt_gettimeleft,
.ping = asm9260_wdt_feed,
.set_timeout = asm9260_wdt_settimeout,
+ .restart = asm9260_restart,
};
static int asm9260_wdt_get_dt_clks(struct asm9260_wdt_priv *priv)
@@ -335,18 +333,14 @@ static int asm9260_wdt_probe(struct platform_device *pdev)
dev_warn(&pdev->dev, "failed to request IRQ\n");
}
+ watchdog_set_restart_priority(wdd, 128);
+
ret = watchdog_register_device(wdd);
if (ret)
goto clk_off;
platform_set_drvdata(pdev, priv);
- priv->restart_handler.notifier_call = asm9260_restart_handler;
- priv->restart_handler.priority = 128;
- ret = register_restart_handler(&priv->restart_handler);
- if (ret)
- dev_warn(&pdev->dev, "cannot register restart handler\n");
-
dev_info(&pdev->dev, "Watchdog enabled (timeout: %d sec, mode: %s)\n",
wdd->timeout, mode_name[priv->mode]);
return 0;
@@ -370,8 +364,6 @@ static int asm9260_wdt_remove(struct platform_device *pdev)
asm9260_wdt_disable(&priv->wdd);
- unregister_restart_handler(&priv->restart_handler);
-
watchdog_unregister_device(&priv->wdd);
clk_disable_unprepare(priv->clk);