Messages in this thread | | | Subject | Re: ppc: fix up pmac IDE driver for driver core changes | From | Benjamin Herrenschmidt <> | Date | Sun, 14 Nov 2004 13:26:27 +1100 |
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On Sat, 2004-11-13 at 20:53 +0000, Linux Kernel Mailing List wrote: > ChangeSet 1.2115, 2004/11/13 12:53:51-08:00, torvalds@ppc970.osdl.org > > ppc: fix up pmac IDE driver for driver core changes > > device power state is in "dev.power.power_state" now, rather than > in "dev.power_state". >
Hrm... Missed that core change, where does it come from ? doesn't quite go in the direction we have been discussing on linux-pm lately, which is rather to remove this power_state field entirely since it's mostly meaningless at this point (or rather, it's semantics are confuse and the userland interface to it is means pretty much nothing).
While having a power_state field here for internal use of the driver may be "useful" (avoiding the need for drivers to maintain something equivalent locally), it's pretty much impossible to have a generic abstract power_state that has globally defined semantics, at least not with our current scheme.
Ben.
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