Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops

2017-07-12 Thread Vivek Gautam
On 07/13/2017 04:31 AM, Stephen Boyd wrote: On 07/12, Stephen Boyd wrote: On 07/06, Vivek Gautam wrote: From: Sricharan R The smmu needs to be functional only when the respective master's using it are active. The device_link feature helps to track such functional dependencies, so that the i

Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops

2017-07-12 Thread Stephen Boyd
On 07/12, Stephen Boyd wrote: > On 07/06, Vivek Gautam wrote: > > From: Sricharan R > > > > The smmu needs to be functional only when the respective > > master's using it are active. The device_link feature > > helps to track such functional dependencies, so that the > > iommu gets powered when t

Re: [PATCH V4 2/6] iommu/arm-smmu: Add pm_runtime/sleep ops

2017-07-12 Thread Stephen Boyd
On 07/06, Vivek Gautam wrote: > From: Sricharan R > > The smmu needs to be functional only when the respective > master's using it are active. The device_link feature > helps to track such functional dependencies, so that the > iommu gets powered when the master device enables itself > using pm_r