linux-kernel - Re: [RFC/PATCH 0/4] twl4030 threaded

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Message-Id: <201001252336.55577.david-b@pacbell.net>
Date:	Mon, 25 Jan 2010 23:36:55 -0800
From:	David Brownell <david-b@...bell.net>
To:	Felipe Balbi <felipe.balbi@...ia.com>
Cc:	linux-kernel@...r.kernel.org,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Tony Lindgren <tony@...mide.com>,
	Aaro Koskinen <aaro.koskinen@...ia.com>,
	Linux USB Mailing List <linux-usb@...r.kernel.org>,
	Anton Vorontsov <avorontsov@...mvista.com>,
	Grazvydas Ignotas <notasas@...il.com>,
	Madhusudhan Chikkature <madhu.cr@...com>,
	"Greg Kroah-Hartman" <gregkh@...e.de>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Samuel Ortiz <sameo@...nedhand.com>
Subject: Re: [RFC/PATCH 0/4] twl4030 threaded_irq support

On Monday 25 January 2010, David Brownell wrote:
> Did the threaded IRQ stuff ever get set up so that the top
> level IRQ thread didn't have to hand off to another thread
> each time?  (That's how the current stuff works.  One thread
> calling out to each handler.)

Yes:  set_irq_nested_thread().  Looks like the toplevel IRQ
demux (in drivers/mfd/twl*irq*c) should use that, along with
the ONESHOT flag and (eventually) bus_lock stuff.

All the key parts that were missing a few years ago now seem
to be present.  But, not yet in use here.  :)

- Dave

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