From: Anton Vorontsov <cbouatmailru-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "André Schwarz" <andre.schwarz-P0pTl12WyEgpBod+wgzj8A@public.gmane.org>
Cc: LinuxPPC List
<linuxppc-dev-mnsaURCQ41sdnm+yROfE0A@public.gmane.org>,
DevTreeDiscuss
<devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org>
Subject: Re: How to define an I2C-to-SPI bridge device ?
Date: Fri, 10 Sep 2010 22:27:35 +0400 [thread overview]
Message-ID: <20100910182735.GA28479@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <1284142484.2152.18.camel@swa-e6500>
On Fri, Sep 10, 2010 at 08:14:44PM +0200, André Schwarz wrote:
[...]
> > Does the device actually generate edge interrupts? Or is it a level
> > irq device? If it is a level irq device, then the correct way to
> > handle this is to disable the irq line so that the event can be
> > handled at non-irq context, and then reenable it when finished.
>
> The irq is level-low active.
> Will do it via disable/re-enable then.
FYI, In newer kernels you don't have to do it manually, there's
request_threaded_irq() for this.
--
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
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next prev parent reply other threads:[~2010-09-10 18:27 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-03 8:36 How to define an I2C-to-SPI bridge device ? André Schwarz
2010-09-03 12:08 ` Anton Vorontsov
2010-09-06 11:40 ` Andre Schwarz
[not found] ` <4C84D334.6060008-P0pTl12WyEgpBod+wgzj8A@public.gmane.org>
2010-09-06 14:37 ` André Schwarz
2010-09-09 18:23 ` Grant Likely
2010-09-10 8:11 ` André Schwarz
2010-09-10 17:37 ` Grant Likely
[not found] ` <20100910173706.GD11284-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-09-10 18:14 ` André Schwarz
2010-09-10 18:27 ` Anton Vorontsov [this message]
2010-09-10 18:28 ` Grant Likely
[not found] ` <20100910182815.GH11284-MrY2KI0G/OVr83L8+7iqerDks+cytr/Z@public.gmane.org>
2010-09-12 15:10 ` André Schwarz
2010-09-13 4:39 ` Grant Likely
2010-09-09 17:06 ` Grant Likely
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