diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index c3df53e480ea..50ab9fd4eeb0 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -4,6 +4,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/clk.h>
 #include <linux/compiler.h>
 #include <linux/delay.h>
 #include <linux/device.h>
@@ -87,10 +88,17 @@ struct rk_iommu_domain {
 	struct iommu_domain domain;
 };
 
+/* list of clocks required by IOMMU */
+static const char * const rk_iommu_clocks[] = {
+	"aclk", "iface",
+};
+
 struct rk_iommu {
 	struct device *dev;
 	void __iomem **bases;
 	int num_mmu;
+	struct clk_bulk_data *clocks;
+	int num_clocks;
 	bool reset_disabled;
 	struct iommu_device iommu;
 	struct list_head node; /* entry in rk_iommu_domain.iommus */
@@ -506,6 +514,8 @@ static irqreturn_t rk_iommu_irq(int irq, void *dev_id)
 	irqreturn_t ret = IRQ_NONE;
 	int i;
 
+	WARN_ON(clk_bulk_enable(iommu->num_clocks, iommu->clocks));
+
 	for (i = 0; i < iommu->num_mmu; i++) {
 		int_status = rk_iommu_read(iommu->bases[i], RK_MMU_INT_STATUS);
 		if (int_status == 0)
@@ -552,6 +562,8 @@ static irqreturn_t rk_iommu_irq(int irq, void *dev_id)
 		rk_iommu_write(iommu->bases[i], RK_MMU_INT_CLEAR, int_status);
 	}
 
+	clk_bulk_disable(iommu->num_clocks, iommu->clocks);
+
 	return ret;
 }
 
@@ -594,7 +606,9 @@ static void rk_iommu_zap_iova(struct rk_iommu_domain *rk_domain,
 	list_for_each(pos, &rk_domain->iommus) {
 		struct rk_iommu *iommu;
 		iommu = list_entry(pos, struct rk_iommu, node);
+		WARN_ON(clk_bulk_enable(iommu->num_clocks, iommu->clocks));
 		rk_iommu_zap_lines(iommu, iova, size);
+		clk_bulk_disable(iommu->num_clocks, iommu->clocks);
 	}
 	spin_unlock_irqrestore(&rk_domain->iommus_lock, flags);
 }
@@ -823,10 +837,14 @@ static int rk_iommu_attach_device(struct iommu_domain *domain,
 	if (!iommu)
 		return 0;
 
-	ret = rk_iommu_enable_stall(iommu);
+	ret = clk_bulk_enable(iommu->num_clocks, iommu->clocks);
 	if (ret)
 		return ret;
 
+	ret = rk_iommu_enable_stall(iommu);
+	if (ret)
+		goto out_disable_clocks;
+
 	ret = rk_iommu_force_reset(iommu);
 	if (ret)
 		goto out_disable_stall;
@@ -852,6 +870,8 @@ static int rk_iommu_attach_device(struct iommu_domain *domain,
 
 out_disable_stall:
 	rk_iommu_disable_stall(iommu);
+out_disable_clocks:
+	clk_bulk_disable(iommu->num_clocks, iommu->clocks);
 	return ret;
 }
 
@@ -873,6 +893,7 @@ static void rk_iommu_detach_device(struct iommu_domain *domain,
 	spin_unlock_irqrestore(&rk_domain->iommus_lock, flags);
 
 	/* Ignore error while disabling, just keep going */
+	WARN_ON(clk_bulk_enable(iommu->num_clocks, iommu->clocks));
 	rk_iommu_enable_stall(iommu);
 	rk_iommu_disable_paging(iommu);
 	for (i = 0; i < iommu->num_mmu; i++) {
@@ -880,6 +901,7 @@ static void rk_iommu_detach_device(struct iommu_domain *domain,
 		rk_iommu_write(iommu->bases[i], RK_MMU_DTE_ADDR, 0);
 	}
 	rk_iommu_disable_stall(iommu);
+	clk_bulk_disable(iommu->num_clocks, iommu->clocks);
 
 	iommu->domain = NULL;
 
@@ -1172,15 +1194,37 @@ static int rk_iommu_probe(struct platform_device *pdev)
 	iommu->reset_disabled = device_property_read_bool(dev,
 					"rockchip,disable-mmu-reset");
 
-	err = iommu_device_sysfs_add(&iommu->iommu, dev, NULL, dev_name(dev));
+	iommu->num_clocks = ARRAY_SIZE(rk_iommu_clocks);
+	iommu->clocks = devm_kcalloc(iommu->dev, iommu->num_clocks,
+				     sizeof(*iommu->clocks), GFP_KERNEL);
+	if (!iommu->clocks)
+		return -ENOMEM;
+
+	for (i = 0; i < iommu->num_clocks; ++i)
+		iommu->clocks[i].id = rk_iommu_clocks[i];
+
+	err = devm_clk_bulk_get(iommu->dev, iommu->num_clocks, iommu->clocks);
 	if (err)
 		return err;
 
+	err = clk_bulk_prepare(iommu->num_clocks, iommu->clocks);
+	if (err)
+		return err;
+
+	err = iommu_device_sysfs_add(&iommu->iommu, dev, NULL, dev_name(dev));
+	if (err)
+		goto err_unprepare_clocks;
+
 	iommu_device_set_ops(&iommu->iommu, &rk_iommu_ops);
 	err = iommu_device_register(&iommu->iommu);
 	if (err)
-		iommu_device_sysfs_remove(&iommu->iommu);
+		goto err_remove_sysfs;
 
+	return 0;
+err_remove_sysfs:
+	iommu_device_sysfs_remove(&iommu->iommu);
+err_unprepare_clocks:
+	clk_bulk_unprepare(iommu->num_clocks, iommu->clocks);
 	return err;
 }