On Thursday 25 September 2014, Thomas Gleixner wrote: > On Thu, 25 Sep 2014, Joe.C wrote: > > From: "Joe.C" <yingjoe.chen@xxxxxxxxxxxx> > > > > 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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
