On Tue, Apr 22, 2014 at 05:39:28PM -0700, Dmitry Torokhov wrote: > On Tue, Apr 22, 2014 at 10:18:21PM +0100, Mark Brown wrote: > > Remove the bitrotted comment, though in actual fact the use case mentioned > > is a great use for spi_async() since it would cut down on latency handling > > the interrupt by saving us a context switch before we start SPI. > > This was previously implemented, it was removed in commit b534422b2d11 > > (Input: ad7877 - switch to using threaded IRQ) for code complexity reasons. > > It may be better to revert that commit instead. > Hmm, maybe.. although I think original would cause device 'stuck' if > call to spi_async() fails, so probably not a straight revert... Probably best just to apply this, then - someone can always reimplement if they need to.
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