PM / Runtime: Update runtime_idle() documentation for return value meaning (651665db) · Commits · 戴 / test

As of commit ('PM / Runtime: Rework the "runtime idle" helper routine'), the return value of ->runtime_idle() is no longer ignored by the PM core, but used to decide whether to suspend the device or not. Update the documentation to match the code. Signed-off-by:

Geert Uytterhoeven <geert+renesas@linux-m68k.org> Acked-by:

Pavel Machek <pavel@ucw.cz> Signed-off-by:

Rafael J. Wysocki <rafael.j.wysocki@intel.com>

include/linux/pm.h

+3 −3

Original line number	Diff line number	Diff line
		@@ -264,9 +264,9 @@ typedef struct pm_message {
		* registers, so that it is fully operational.
		*
		* @runtime_idle: Device appears to be inactive and it might be put into a
		* low-power state if all of the necessary conditions are satisfied. Check
		* these conditions and handle the device as appropriate, possibly queueing
		* a suspend request for it. The return value is ignored by the PM core.
		* low-power state if all of the necessary conditions are satisfied.
		* Check these conditions, and return 0 if it's appropriate to let the PM
		* core queue a suspend request for the device.
		*
		* Refer to Documentation/power/runtime_pm.txt for more information about the
		* role of the above callbacks in device runtime power management.

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