[PATCH 1/3] spi/qspi: Add memory mapped read support.

[Mark Brown]

On Tue, Oct 15, 2013 at 11:13:38AM -0700, Trent Piepho wrote:

> If it is, I think low latency for small reads is probably one of the
> only advantages.  To do that, you aren't going to want to deal with
> device PM for every single read.  It would make more sense to turn the
> hardware on when the MTD device is opened and leave it on until
> closed.

Autosuspend *might* be efficient enough.
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