[PATCH RFC 2/2] ARM64: psci: implement system suspend using PSCI v0.2 CPU SUSPEND

On Thu, Jan 22, 2015 at 06:18:12AM +0000, Leo Yan wrote:

[...]

How about unify the power states passing for cpu idle and suspend?

below is a example for dts which place all power state into psci
entry, so that idle-states and system suspend both can reference
the power state.

psci {
	compatible = "arm,psci-0.2";
	method = "smc";

        power_state {
                CPU_POWER_OFF: cpu_power_off {
                        state = <0x00010000>;
                };

                CLUSTER_POWER_OFF: cluster_power_off {
                        state = <0x01010000>;
                };

                SOC_SUSPEND: soc_suspend {
                        state = <0x01010001>;
                };
        };
};

I do not see why this would help. We would end up with phandles to
the nodes above to get the parameter from idle-states, to me it
looks like churn honestly, I do not see where the improvement is.

Lorenzo