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

[Gupta, Pekon]

> From: Mark Brown [mailto:broonie at kernel.org]
> > On Tue, Oct 15, 2013 at 03:33:19PM +0000, Gupta, Pekon wrote:
> > Problem here..
> > spi_sync() is not blocking, that means it would just add a spi_message
> > to queue and return. And it depends on kthread_worker when it pumps
> > this spi_message to QPSI controller driver for actual configuration.
> > So this is actually a race-condition. You cannot use spi_sync() to configure.
> 
> No, spi_sync() is blocking - spi_async() is non-blocking.

Sorry my bad, I must have been dreaming or something.
Yes, it's spi_sync() is blocking, its clearly written in its comments too..

with regards, pekon