1 files changed, 8 insertions, 1 deletions

diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index 5fc8656c60f9..c0f03af34832 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1175,8 +1175,15 @@ static int rk_iommu_probe(struct platform_device *pdev)
         for (i = 0; i < iommu->num_clocks; ++i)
                 iommu->clocks[i].id = rk_iommu_clocks[i];
 
+        /*
+         * iommu clocks should be present for all new devices and devicetrees
+         * but there are older devicetrees without clocks out in the wild.
+         * So clocks as optional for the time being.
+         */
         err = devm_clk_bulk_get(iommu->dev, iommu->num_clocks, iommu->clocks);
-        if (err)
+        if (err == -ENOENT)
+                iommu->num_clocks = 0;
+        else if (err)
                 return err;
 
         err = clk_bulk_prepare(iommu->num_clocks, iommu->clocks);