On 11/02/2015 05:36 PM, Damien Riegel wrote:
Get rid of the custom restart handler by using the one provided by the
watchdog core.
Signed-off-by: Damien Riegel <[email protected]>
Signed-off-by: Vivien Didelot <[email protected]>
Reviewed-by: Guenter Roeck <[email protected]>
---
drivers/watchdog/imgpdc_wdt.c | 34 ++++++++++++----------------------
1 file changed, 12 insertions(+), 22 deletions(-)
diff --git a/drivers/watchdog/imgpdc_wdt.c b/drivers/watchdog/imgpdc_wdt.c
index 15ab072..3679f2e 100644
--- a/drivers/watchdog/imgpdc_wdt.c
+++ b/drivers/watchdog/imgpdc_wdt.c
@@ -45,7 +45,6 @@
#include <linux/log2.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/reboot.h>
#include <linux/slab.h>
#include <linux/watchdog.h>
@@ -87,7 +86,6 @@ struct pdc_wdt_dev {
struct clk *wdt_clk;
struct clk *sys_clk;
void __iomem *base;
- struct notifier_block restart_handler;
};
static int pdc_wdt_keepalive(struct watchdog_device *wdt_dev)
@@ -152,6 +150,16 @@ static int pdc_wdt_start(struct watchdog_device *wdt_dev)
return 0;
}
+static int pdc_wdt_restart(struct watchdog_device *wdt_dev)
+{
+ struct pdc_wdt_dev *wdt = watchdog_get_drvdata(wdt_dev);
+
+ /* Assert SOFT_RESET */
+ writel(0x1, wdt->base + PDC_WDT_SOFT_RESET);
+
+ return 0;
+}
+
static struct watchdog_info pdc_wdt_info = {
.identity = "IMG PDC Watchdog",
.options = WDIOF_SETTIMEOUT |
@@ -165,20 +173,9 @@ static const struct watchdog_ops pdc_wdt_ops = {
.stop = pdc_wdt_stop,
.ping = pdc_wdt_keepalive,
.set_timeout = pdc_wdt_set_timeout,
+ .restart = pdc_wdt_restart,
};
-static int pdc_wdt_restart(struct notifier_block *this, unsigned long mode,
- void *cmd)
-{
- struct pdc_wdt_dev *wdt = container_of(this, struct pdc_wdt_dev,
- restart_handler);
-
- /* Assert SOFT_RESET */
- writel(0x1, wdt->base + PDC_WDT_SOFT_RESET);
-
- return NOTIFY_OK;
-}
-
static int pdc_wdt_probe(struct platform_device *pdev)
{
u64 div;
@@ -282,6 +279,7 @@ static int pdc_wdt_probe(struct platform_device *pdev)
}
watchdog_set_nowayout(&pdc_wdt->wdt_dev, nowayout);
+ watchdog_set_restart_priority(&pdc_wdt->wdt_dev, 128);
platform_set_drvdata(pdev, pdc_wdt);
@@ -289,13 +287,6 @@ static int pdc_wdt_probe(struct platform_device *pdev)
if (ret)
goto disable_wdt_clk;
- pdc_wdt->restart_handler.notifier_call = pdc_wdt_restart;
- pdc_wdt->restart_handler.priority = 128;
- ret = register_restart_handler(&pdc_wdt->restart_handler);
- if (ret)
- dev_warn(&pdev->dev, "failed to register restart handler: %d\n",
- ret);
-
return 0;
disable_wdt_clk:
@@ -316,7 +307,6 @@ static int pdc_wdt_remove(struct platform_device *pdev)
{
struct pdc_wdt_dev *pdc_wdt = platform_get_drvdata(pdev);
- unregister_restart_handler(&pdc_wdt->restart_handler);
pdc_wdt_stop(&pdc_wdt->wdt_dev);
watchdog_unregister_device(&pdc_wdt->wdt_dev);
clk_disable_unprepare(pdc_wdt->wdt_clk);
--
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