From: arnd@arndb•de (Arnd Bergmann)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH] [RFC] Using hierarchy irqdomian to implement MTK intpol.
Date: Thu, 25 Sep 2014 21:20:24 +0200 [thread overview]
Message-ID: <201409252120.24570.arnd@arndb.de> (raw)
In-Reply-To: <alpine.DEB.2.10.1409251609500.4604@nanos>
On Thursday 25 September 2014, Thomas Gleixner wrote:
> On Thu, 25 Sep 2014, Joe.C wrote:
> > From: "Joe.C" <yingjoe.chen@mediatek•com>
> >
> > Here's the first draft of using hierarchy irqdomain to implement MTK intpol
> > support. I have tested it and intpol works fine. Before continue, I'd like
> > to get your comments. This is based on Jiang's hierarchy irqdomian [1] and
> > my mediatek SoC basic support [2].
> >
> > Simplified block diagram for interrupt:
> >
> > --------- ---------
> > ---| CIRQ |------|ARM GIC|
> > ---| |------| |
> > ---| |------| |
> > ---| |------| |
> > ---| |------| |
> > --------- ---------
> >
> > In device tree, interrupt-parent for other devices is cirq, child of gic.
> > This describe HW better and allow device to specify polarity as it is sent
> > by the device. I'm using interrupt-parent to specify irq domain parent in
> > cirq now. Maybe adding another name like 'interrupt-domain-parent' will be
> > better.
>
> I leave that to the DT folks.
interrupt-parent really defines a domain already, I think using this is
perfectly fine.
Arnd
prev parent reply other threads:[~2014-09-25 19:20 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-24 16:04 [PATCH] [RFC] Using hierarchy irqdomian to implement MTK intpol Joe.C
2014-09-25 2:16 ` Joe.C
2014-09-25 3:04 ` Jiang Liu
2014-09-25 3:17 ` Jason Cooper
2014-09-25 3:37 ` Jiang Liu
2014-09-25 3:12 ` Jiang Liu
2014-09-25 14:27 ` Thomas Gleixner
2014-09-25 19:20 ` Arnd Bergmann [this message]
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