On Thu, Oct 11, 2018 at 02:50:52AM +0530, Raju P.L.S.S.S.N wrote: > Add device binding documentation for Qualcomm Technology Inc's cpu > domain driver. The driver is used for managing system sleep activities > that are required when application processor is going to deepest low > power mode. > So either we are not using PSCI or the binding is not so clear on how this co-exist with PSCI power domains. Could you provide details ? > Cc: devicetree@xxxxxxxxxxxxxxx > Signed-off-by: Raju P.L.S.S.S.N <rplsssn@xxxxxxxxxxxxxx> > --- > .../bindings/soc/qcom/cpu_power_domain.txt | 39 ++++++++++++++++++++++ > 1 file changed, 39 insertions(+) > create mode 100644 Documentation/devicetree/bindings/soc/qcom/cpu_power_domain.txt > > diff --git a/Documentation/devicetree/bindings/soc/qcom/cpu_power_domain.txt b/Documentation/devicetree/bindings/soc/qcom/cpu_power_domain.txt > new file mode 100644 > index 0000000..1c8fe69 > --- /dev/null > +++ b/Documentation/devicetree/bindings/soc/qcom/cpu_power_domain.txt > @@ -0,0 +1,39 @@ > +Qualcomm Technologies cpu power domain > +----------------------------------------- > + > +CPU power domain handles the tasks that need to be performed during > +application processor deeper low power mode entry for QCOM SoCs which > +have hardened IP blocks combinedly called as RPMH (Resource Power Manager > +Hardened) for shared resource management. Flushing the buffered requests > +to TCS (Triggered Command Set) in RSC (Resource State Coordinator) and > +programming the wakeup timer in PDC (Power Domain Controller) for timer > +based wakeup are handled as part of domain power down. > + And which is this not hidden as part of PSCI CPU_SUSPEND ? > +The bindings for cpu power domain is specified in the RSC section in > +devicetree. > + > +Properties: > +- compatible: > + Usage: required > + Value type: <string> > + Definition: must be "qcom,cpu-pm-domain". > + NACK until details on how this can co-exist with PSCI is provided. -- Regards, Sudeep
