[PATCH v2] mtd: pxa3xx-nand: handle PIO in threaded interrupt
computersforpeace at gmail.com
Sat Feb 28 01:15:52 PST 2015
On Fri, Feb 20, 2015 at 07:36:43PM +0100, Robert Jarzmik wrote:
> Change the handling of the data stage in the driver : don't pump data in
> the top-half interrupt, but rather schedule a thread for non dma cases.
> This will enable latencies in the data pumping, especially if delays are
> required. Moreover platform shall be more reactive as other interrupts
> can be served while pumping data.
> No throughput degradation was observed, at least on the zylonite
> platform, while a slight degradation was being expected.
> Signed-off-by: Robert Jarzmik <robert.jarzmik at free.fr>
> Tested-by: Maxime Ripard <maxime.ripard at free-electrons.com>
> Since v1: use IRQF_ONESHOT per Maxime's comment
Pushed to l2-mtd.git. Thanks.
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