From: Mark Brown <broonie-yzvPICuk2AATkU/dhu1WVueM+bqZidxxQQ4Iyu8u01E@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Wei Ni <wni-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>,
linux-wireless-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org,
brcm80211-dev-list-dY08KVG/lbpWk0Htik3J/w@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org"
<rob.herring-bsGFqQB8/DxBDgjK7y7TUQ@public.gmane.org>,
frankyl-dY08KVG/lbpWk0Htik3J/w@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: How to get the irq flags from the dts file
Date: Thu, 9 Aug 2012 13:05:30 +0100 [thread overview]
Message-ID: <20120809120530.GC8474@sirena.org.uk> (raw)
In-Reply-To: <201208091148.42748.arnd-r2nGTMty4D4@public.gmane.org>
On Thu, Aug 09, 2012 at 11:48:42AM +0000, Arnd Bergmann wrote:
> On Thursday 09 August 2012, Wei Ni wrote:
> > The wlan driver wish this flags include the IRQF_TRGGER_* information,
> > and it will use this flags to configure other hw settings. If it is
> > wrong, the wlan can't work.
You can read the configuration with irqd_get_trigger_type() - see the OF
code in sound/soc/codecs/wm8903.c for an example.
> The driver should not need to know about thie flag. It gets read
> by irq_create_of_mapping when calling teh xlate function and
> gets set using irq_set_irq_type from there too.
That only helps the interrupt controller, it doesn't help the interrupt
source. A good proportion of embedded devices have a great deal of
flexibility in how they signal interrupts so they need to know what mode
to pick.
next prev parent reply other threads:[~2012-08-09 12:05 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 10:43 How to get the irq flags from the dts file Wei Ni
2012-08-09 11:48 ` Arnd Bergmann
[not found] ` <201208091148.42748.arnd-r2nGTMty4D4@public.gmane.org>
2012-08-09 12:05 ` Mark Brown [this message]
[not found] ` <20120809120530.GC8474-GFdadSzt00ze9xe1eoZjHA@public.gmane.org>
2012-08-10 9:11 ` Wei Ni
2012-08-09 12:09 ` Arend van Spriel
[not found] ` <5023A88F.8040402-dY08KVG/lbpWk0Htik3J/w@public.gmane.org>
2012-08-10 9:14 ` Wei Ni
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