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path: root/drivers/watchdog/omap_wdt.c
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Diffstat (limited to 'drivers/watchdog/omap_wdt.c')
-rw-r--r--drivers/watchdog/omap_wdt.c24
1 files changed, 7 insertions, 17 deletions
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 8285d65cd207..fceec4f4eb7e 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -126,8 +126,6 @@ static void omap_wdt_set_timeout(struct omap_wdt_dev *wdev)
u32 pre_margin = GET_WLDR_VAL(timer_margin);
void __iomem *base = wdev->base;
- pm_runtime_get_sync(wdev->dev);
-
/* just count up at 32 KHz */
while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
cpu_relax();
@@ -135,8 +133,6 @@ static void omap_wdt_set_timeout(struct omap_wdt_dev *wdev)
__raw_writel(pre_margin, base + OMAP_WATCHDOG_LDR);
while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
cpu_relax();
-
- pm_runtime_put_sync(wdev->dev);
}
/*
@@ -166,8 +162,6 @@ static int omap_wdt_open(struct inode *inode, struct file *file)
omap_wdt_ping(wdev); /* trigger loading of new timeout value */
omap_wdt_enable(wdev);
- pm_runtime_put_sync(wdev->dev);
-
return nonseekable_open(inode, file);
}
@@ -179,8 +173,6 @@ static int omap_wdt_release(struct inode *inode, struct file *file)
* Shut off the timer unless NOWAYOUT is defined.
*/
#ifndef CONFIG_WATCHDOG_NOWAYOUT
- pm_runtime_get_sync(wdev->dev);
-
omap_wdt_disable(wdev);
pm_runtime_put_sync(wdev->dev);
@@ -199,11 +191,9 @@ static ssize_t omap_wdt_write(struct file *file, const char __user *data,
/* Refresh LOAD_TIME. */
if (len) {
- pm_runtime_get_sync(wdev->dev);
spin_lock(&wdt_lock);
omap_wdt_ping(wdev);
spin_unlock(&wdt_lock);
- pm_runtime_put_sync(wdev->dev);
}
return len;
}
@@ -236,18 +226,15 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
(int __user *)arg);
return put_user(0, (int __user *)arg);
case WDIOC_KEEPALIVE:
- pm_runtime_get_sync(wdev->dev);
spin_lock(&wdt_lock);
omap_wdt_ping(wdev);
spin_unlock(&wdt_lock);
- pm_runtime_put_sync(wdev->dev);
return 0;
case WDIOC_SETTIMEOUT:
if (get_user(new_margin, (int __user *)arg))
return -EFAULT;
omap_wdt_adjust_timeout(new_margin);
- pm_runtime_get_sync(wdev->dev);
spin_lock(&wdt_lock);
omap_wdt_disable(wdev);
omap_wdt_set_timeout(wdev);
@@ -255,7 +242,6 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
omap_wdt_ping(wdev);
spin_unlock(&wdt_lock);
- pm_runtime_put_sync(wdev->dev);
/* Fall */
case WDIOC_GETTIMEOUT:
return put_user(timer_margin, (int __user *)arg);
@@ -363,7 +349,6 @@ static void omap_wdt_shutdown(struct platform_device *pdev)
struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
if (wdev->omap_wdt_users) {
- pm_runtime_get_sync(wdev->dev);
omap_wdt_disable(wdev);
pm_runtime_put_sync(wdev->dev);
}
@@ -403,7 +388,6 @@ static int omap_wdt_suspend(struct platform_device *pdev, pm_message_t state)
struct omap_wdt_dev *wdev = platform_get_drvdata(pdev);
if (wdev->omap_wdt_users) {
- pm_runtime_get_sync(wdev->dev);
omap_wdt_disable(wdev);
pm_runtime_put_sync(wdev->dev);
}
@@ -419,7 +403,6 @@ static int omap_wdt_resume(struct platform_device *pdev)
pm_runtime_get_sync(wdev->dev);
omap_wdt_enable(wdev);
omap_wdt_ping(wdev);
- pm_runtime_put_sync(wdev->dev);
}
return 0;
@@ -430,6 +413,12 @@ static int omap_wdt_resume(struct platform_device *pdev)
#define omap_wdt_resume NULL
#endif
+static const struct of_device_id omap_wdt_of_match[] = {
+ { .compatible = "ti,omap3-wdt", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, omap_wdt_of_match);
+
static struct platform_driver omap_wdt_driver = {
.probe = omap_wdt_probe,
.remove = __devexit_p(omap_wdt_remove),
@@ -439,6 +428,7 @@ static struct platform_driver omap_wdt_driver = {
.driver = {
.owner = THIS_MODULE,
.name = "omap_wdt",
+ .of_match_table = omap_wdt_of_match,
},
};