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

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Message-ID: <20100126110247.GB13062@nokia.com>
Date:	Tue, 26 Jan 2010 13:02:47 +0200
From:	Felipe Balbi <felipe.balbi@...ia.com>
To:	ext David Brownell <david-b@...bell.net>
Cc:	"Balbi Felipe (Nokia-D/Helsinki)" <felipe.balbi@...ia.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Tony Lindgren <tony@...mide.com>,
	"Koskinen Aaro (Nokia-D/Helsinki)" <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 Tue, Jan 26, 2010 at 08:06:55AM +0100, ext David Brownell wrote:
>On Monday 14 December 2009, Felipe Balbi wrote:
>> move twl4030 children to threaded irq.
>>
>> Felipe Balbi (4):
>>   input: keyboard: twl4030: move to request_threaded_irq
>>   input: misc: twl4030: move to request_threaded_irq
>>   rtc: twl4030: move to request_threaded_irq
>>   usb: otg: twl4030: move to request_threaded_irq
>
>But nothing in drivers/mfd ... the entry to the whole stack?
>
>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.)
>
>If so, I'd like to see that be used here, rather than needlessly
>spend all those pages on mostly-unused stacks.

correct, that's still missing. I tried to play with it for a while, but 
had to give up due to other musb tasks. So if someone wants to step up 
and code that part, I'd be glad

-- 
balbi
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