Hi, Now that the performance state of PM domains are supported by the kernel (merged in linux-next), I am trying once again to define the bindings which we dropped until the code is merged first.
This is targeted for 4.16 kernel and I am sending it now to get early reviews. The bindings in this series have changed a bit since the time it was last sent for review [1]. I have taken care of most of the feedback given last time. Summary: Power-domains can also have their active states and this patchset enhances the OPP binding to define those. The power domains can use the OPP bindings mostly as is. Though there are some changes required to support special cases: - Allow "operating-points-v2" to contain multiple phandles for power domain providers providing multiple domains. - A new property "power-domain-opp" is added for devices to specify the minimum required OPP of the master domain for the functioning of the device. We can add this property directly to device's node if the device has a fixed minimum OPP requirement from the master power domain. Or we can add this property to each OPP node of the device, if different OPP nodes have different minimum OPP requirement from the master power domain. - Allow some of the OPP properties to accept magic values (firmware dependent) as the OS doesn't know the real freq/voltage values. -- viresh [1] https://marc.info/?l=linux-kernel&m=149320428621874&w=2 Viresh Kumar (2): OPP: Allow OPP table to be used for power-domains OPP: Allow "opp-hz" and "opp-microvolt" to contain magic values Documentation/devicetree/bindings/opp/opp.txt | 18 +++++++ .../devicetree/bindings/power/power_domain.txt | 62 ++++++++++++++++++++++ 2 files changed, 80 insertions(+) -- 2.15.0.rc1.236.g92ea95045093
