|
@@ -264,6 +264,43 @@ static int xwdt_remove(struct platform_device *pdev)
|
|
|
return 0;
|
|
|
}
|
|
|
|
|
|
+/**
|
|
|
+ * xwdt_suspend - Suspend the device.
|
|
|
+ *
|
|
|
+ * @dev: handle to the device structure.
|
|
|
+ * Return: 0 always.
|
|
|
+ */
|
|
|
+static int __maybe_unused xwdt_suspend(struct device *dev)
|
|
|
+{
|
|
|
+ struct platform_device *pdev = to_platform_device(dev);
|
|
|
+ struct xwdt_device *xdev = platform_get_drvdata(pdev);
|
|
|
+
|
|
|
+ if (watchdog_active(&xdev->xilinx_wdt_wdd))
|
|
|
+ xilinx_wdt_stop(&xdev->xilinx_wdt_wdd);
|
|
|
+
|
|
|
+ return 0;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * xwdt_resume - Resume the device.
|
|
|
+ *
|
|
|
+ * @dev: handle to the device structure.
|
|
|
+ * Return: 0 on success, errno otherwise.
|
|
|
+ */
|
|
|
+static int __maybe_unused xwdt_resume(struct device *dev)
|
|
|
+{
|
|
|
+ struct platform_device *pdev = to_platform_device(dev);
|
|
|
+ struct xwdt_device *xdev = platform_get_drvdata(pdev);
|
|
|
+ int ret = 0;
|
|
|
+
|
|
|
+ if (watchdog_active(&xdev->xilinx_wdt_wdd))
|
|
|
+ ret = xilinx_wdt_start(&xdev->xilinx_wdt_wdd);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static SIMPLE_DEV_PM_OPS(xwdt_pm_ops, xwdt_suspend, xwdt_resume);
|
|
|
+
|
|
|
/* Match table for of_platform binding */
|
|
|
static const struct of_device_id xwdt_of_match[] = {
|
|
|
{ .compatible = "xlnx,xps-timebase-wdt-1.00.a", },
|
|
@@ -278,6 +315,7 @@ static struct platform_driver xwdt_driver = {
|
|
|
.driver = {
|
|
|
.name = WATCHDOG_NAME,
|
|
|
.of_match_table = xwdt_of_match,
|
|
|
+ .pm = &xwdt_pm_ops,
|
|
|
},
|
|
|
};
|
|
|
|