Re: [linux-pm] [PATCH ver. 3] PM: add synchronous runtime interface for interrupt handlers

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Am Donnerstag, 25. November 2010, 16:52:39 schrieb Alan Stern:
> When a device is declared irq-safe in this way, the PM core increments
> the parent's usage count, so the parent will never be runtime
> suspended.  This prevents difficult situations in which an irq-safe
> device can't resume because it is forced to wait for its non-irq-safe
> parent.

Shouldn't you walk further up the tree if the parent itself is irq-safe?
It seems like a waste of power to not suspend a paren, that can be
woken in irq.

	Regards
		Oliver
--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux