Hi David,
David Brownell wrote:
Most platform drivers I've seen just handle the power on/off
requests. I think there's some historical reason that the
"reason" stuff exists ... but I suspect not many folk would
get unhappy if that were removed, and those calls got simplified.
No, I can't agree with you. This state machine provides useful framework
for drivers that work with DMA and/or drivers that set their own wakeup
bits etc. etc. It allows the driver essence to enter the state where it
doesn't accept any new requests but is able to successfully finish the
current ones.
Best regards,
Vitaly
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