Hi Vivek, On Fri, Mar 2, 2018 at 7:10 PM, Vivek Gautam <vivek.gau...@codeaurora.org> wrote: > This series provides the support for turning on the arm-smmu's > clocks/power domains using runtime pm. This is done using the > recently introduced device links patches, which lets the smmu's > runtime to follow the master's runtime pm, so the smmu remains > powered only when the masters use it. > > It also adds support for Qcom's arm-smmu-v2 variant that > has different clocks and power requirements. > > Took some reference from the exynos runtime patches [1]. > > After another round of discussion [3], we now finally seem to be > in agreement to add a flag based on compatible, a flag that would > indicate if a particular implementation of arm-smmu supports > runtime pm or not. > This lets us to use the much-argued pm_runtime_get_sync/put_sync() > calls in map/unmap callbacks so that the clients do not have to > worry about handling any of the arm-smmu's power. > The patch that exported couple of pm_runtime suppliers APIS, viz. > pm_runtime_get_suppliers(), and pm_runtime_put_suppliers() can be > dropped since we don't have a user now for these APIs. > Thanks Rafael for reviewing the changes, but looks like we don't > need to export those APIs for some more time. :) > > Previous version of this patch series is @ [5].
Thanks for addressing my comments. There is still a bit of space for improving the granularity of power management, as far as I understood how it works on SDM845 correctly, but as a first step, this should at least let things work. Reviewed-by: Tomasz Figa <tf...@chromium.org> Best regards, Tomasz _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
