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9a0658d399
Fix a race condition where a second suspend notification from another SCMI agent wakes the system before SCMI_SYSPOWER_IDLE is set, leading to ignored suspend requests. This is due to interrupts triggering early execution of `scmi_userspace_notifier()` before the SCMI state is updated. To resolve this, set SCMI_SYSPOWER_IDLE earlier in the device resume path, prior to `thaw_processes()`. This ensures the SCMI state is correct when the notifier runs, allowing the system to suspend again as expected. On some platforms using SCMI, SCP cannot distinguish between CPU idle and suspend since both result in cluster power-off. By explicitly setting the idle state early, the Linux SCMI agent can correctly re-suspend in response to external notifications. Signed-off-by: Peng Fan <peng.fan@nxp.com> Message-Id: <20250704-scmi-pm-v2-2-9316cec2f9cc@nxp.com> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Linux kernel
============
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