Messages in this thread | | | From | Arnd Bergmann <> | Subject | Re: [PATCH] [RFC] Using hierarchy irqdomian to implement MTK intpol. | Date | Thu, 25 Sep 2014 21:20:24 +0200 |
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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
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