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Date:   Thu, 30 Aug 2018 20:15:39 +0530
From:   Vivek Gautam <>
        Vivek Gautam <>
Subject: [PATCH v16 3/5] iommu/arm-smmu: Add the device_link between masters and smmu

From: Sricharan R <>

Finally add the device link between the master device and
smmu, so that the smmu gets runtime enabled/disabled only when the
master needs it. This is done from add_device callback which gets
called once when the master is added to the smmu.

Signed-off-by: Sricharan R <>
Signed-off-by: Vivek Gautam <>
Reviewed-by: Tomasz Figa <>
Tested-by: Srinivas Kandagatla <>
 drivers/iommu/arm-smmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 1bf542010be7..166c8c6da24f 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1461,6 +1461,9 @@ static int arm_smmu_add_device(struct device *dev)
 	iommu_device_link(&smmu->iommu, dev);
+	device_link_add(dev, smmu->dev,
 	return 0;
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