diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 6dac151ee330..e8f2a36fb5bc 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1861,7 +1861,7 @@ static phys_addr_t arm_smmu_iova_to_phys_hard(struct iommu_domain *domain,
 	}
 
 	if (readl_poll_timeout_atomic(cb_base + ARM_SMMU_CB_ATSR, tmp,
-				!(tmp & ATSR_ACTIVE), 10, 5)) {
+				!(tmp & ATSR_ACTIVE), 5, 50)) {
 		spin_unlock_irqrestore(&smmu_domain->lock, flags);
 		dev_err(dev,
 			"iova to phys timed out on 0x%pa. Falling back to software table walk.\n",