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SubjectRe: [RFC patch 0/3] Support for irq chips on slow busses (i2c, spi) - V2
Hi!

> The support for irq chips on slow busses eg. i2c, spi has been
> discussed to great length several times. Most of the details can be
> found in this thread: http://lkml.org/lkml/2009/7/21/266
>
> The following patch series is a round up of the various patch snippets
> sent out during the discussion and the ideas we agreed on.
>
> This is version 2 of the patch series. The main changes vs. V1
> (http://lkml.org/lkml/2009/8/13/348)
>
> - patch 1/3: Provide a generic primary handler function which just
> returns IRQ_WAKE_THREAD as this is all what oneshot
> threaded handlers need to avoid useless copies of that
> all over the place.
>
> - patch 2/3: Reverted to the initial idea of conditional locking to
> allow drivers to be used for both slowbus and standard
> interrupts without any magic in the driver code
>
> - patch 3/3: To avoid different driver code for nested or separate
> thread handling a new function is provided which allows
> to mark the interrupt nested. request_threaded_irq()
> creates a separate thread only when the flag is not set.
>
> Please have a thorough look and hopefully a test ride on your
> favourite slowbus irq chip implementation so we can get this into .32

FWIW, it looks ok to me.
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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