[PATCH 1/5] spi: introduce mmap read support for spi flash devices

[Mark Brown]

On Wed, Sep 16, 2015 at 03:38:09PM +0530, Vignesh R wrote:

> But, I didn't get how to integrate with existing message queue. Memory
> mapped read by-passes message queue of SPI core. Could you please
> explain a bit more on integrating with message queue? Did you mean
> locking the existing message queue when memory mapped read is being
> requested?

Yes, and also making sure that we don't everything gets processed in
order so memory mapped requests come after any commands needed to set
them up and don't starve other work.
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