[Patch v15 3/5] iommu/arm-smmu: Add the device_link between masters and smmu
From: Vivek Gautam <hidden>
Date: 2018-08-27 10:57:28
Also in:
linux-arm-msm, linux-iommu, linux-pm, lkml
Subsystem:
iommu subsystem, the rest · Maintainers:
Joerg Roedel, Will Deacon, Linus Torvalds
From: Sricharan R <redacted> 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 <redacted> Signed-off-by: Vivek Gautam <redacted> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Tested-by: Srinivas Kandagatla <redacted> --- Changes since v14: - none. 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 23b4a60149b6..b5e7f72d418c 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, + DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_SUPPLIER); + return 0; out_cfg_free:
--
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