| Message ID | 20180830144541.17740-4-vivek.gautam@codeaurora.org (mailing list archive) |
|---|---|
| State | Not Applicable, archived |
| Delegated to: | Andy Gross |
| Headers | show |
| Series | iommu/arm-smmu: Add runtime pm/sleep support | expand |
On 30/08/18 15:45, Vivek Gautam wrote: > From: Sricharan R <sricharan@codeaurora.org> > > 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. Reviewed-by: Robin Murphy <robin.murphy@arm.com> > Signed-off-by: Sricharan R <sricharan@codeaurora.org> > Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org> > Reviewed-by: Tomasz Figa <tfiga@chromium.org> > Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> > --- > 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, > + DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_SUPPLIER); > + > return 0; > > out_cfg_free: >
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, + DL_FLAG_PM_RUNTIME | DL_FLAG_AUTOREMOVE_SUPPLIER); + return 0; out_cfg_free: