[PATCHv2] drivers: mtd: devices: Add quad read support.

[Mark Brown]

On Thu, Sep 26, 2013 at 12:00:43PM +0100, David Woodhouse wrote:

> This seems sane enough to me if Mark agrees that it's correct from the
> SPI point of view.

I didn't really look at the patch but since it doesn't involve changes
to the SPI API providing it does the right thing it should be fine.

> I've seen a bunch of "*this* is how you indicate dummy cycles", and
> "*this* is how you request a quad-read transfer" type responses; have we
> got all the way there yet?

Nobody added an API for dummy cycles yet but it's fairly obvious how to
add them if someone wants to do that.  The quad read stuff is in
mainline already.
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