diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 6915235f9e8682cf91b6d90942fa3238b96db24d..ef771a22c09d2c31591fd98eb6c2abffbca97e3a 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -558,8 +558,7 @@ static int exynos_sysmmu_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, data);
 
-	if (dev->parent)
-		pm_runtime_enable(dev);
+	pm_runtime_enable(dev);
 
 	dev_dbg(dev, "(%s) Initialized\n", data->dbgname);
 	return 0;