+#ifdef CONFIG_PM
+static int etb_runtime_suspend(struct device *dev)
+{
+ struct etb_drvdata *drvdata = dev_get_drvdata(dev);
+
+ if (drvdata && !IS_ERR(drvdata->atclk))
+ clk_disable_unprepare(drvdata->atclk);
+
+ return 0;
+}
+
+static int etb_runtime_resume(struct device *dev)
+{
+ struct etb_drvdata *drvdata = dev_get_drvdata(dev);
+
+ if (drvdata && !IS_ERR(drvdata->atclk))
+ clk_prepare_enable(drvdata->atclk);
+
+ return 0;
+}
+#endif
+
+static const struct dev_pm_ops etb_dev_pm_ops = {
+ SET_RUNTIME_PM_OPS(etb_runtime_suspend, etb_runtime_resume, NULL)
+};
+