ibook, hda power off sequence (for IBM travelstar)

[Benjamin Herrenschmidt]

>
>This bit of code replaces pmu_shutdown from via-pmu.c, its the easiest
>hack to get the IDE code to issue a sleep command to the disk at shutdown
>time.

Broadcasting fake sleep requests is definitely not the correct way to
acheive what you want. Either add direct call to some ide-pmac sleep
function in the arch shutdown function, or use the shutdown notifiers in
ide-pmac to force a disk shutdown.

I'll have a look at it when I'm really back.

Ben.


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