linux-kernel - Re: [PATCH] arm/tegra: convert tegra20 to GIC devicetree binding

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Message-ID: <20111121122212.GL19069@tbergstrom-lnx.Nvidia.com>
Date:	Mon, 21 Nov 2011 14:22:12 +0200
From:	Peter De Schrijver <pdeschrijver@...dia.com>
To:	Stephen Warren <swarren@...dia.com>
CC:	Russell King <linux@....linux.org.uk>,
	Colin Cross <ccross@...roid.com>,
	Olof Johansson <olof@...om.net>,
	Marc Dietrich <marvin24@....de>,
	"Grant Likely" <grant.likely@...retlab.ca>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH] arm/tegra: convert tegra20 to GIC devicetree binding

On Fri, Nov 18, 2011 at 05:25:33PM +0100, Stephen Warren wrote:
> Peter De Schrijver wrote at Friday, November 18, 2011 5:04 AM:
> > On Thu, Nov 17, 2011 at 07:51:35PM +0100, Stephen Warren wrote:
> > > Peter De Schrijver wrote at Thursday, November 17, 2011 8:07 AM:
> > > > Convert tegra20 IRQ intialization to the GIC devicetree binding. Modify the
> > > > interrupt definitions in the dts files according to
> > > > Documentation/devicetree/bindings/arm/gic.txt
> > > >
> > > > Signed-off-by: Peter De Schrijver <pdeschrijver@...dia.com>
> > >
> > > tegra-harmony.dts contains an interrupts property that wasn't updated,
> > > for the WM8903 codec.
> > 
> > But that's a GPIO interrupt no?
> 
> The interrupt line from codec to Tegra is a GPIO, yes.
> 
> But the WM8903 still has the same interrupt-parent as everything else,
> since it's inherited from /interrupt-parent and doesn't define its own.
> Perhaps this is a mistake?

Yes. I think this is a mistake. If we want the device tree to reflect the
hardware, I think the WM8903 node should specify the GPIO, not the IRQ
number.

Cheers,

Peter.
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