linux-kernel - Re: [PATCH v4 2/4] irq: add irq_domain support to generic-chip

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Message-ID: <20120208061649.GA28996@r65073-Latitude-D630>
Date:	Tue, 7 Feb 2012 22:16:51 -0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Grant Likely <grant.likely@...retlab.ca>
Cc:	Rob Herring <robherring2@...il.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Thomas Gleixner <tglx@...utronix.de>, b-cousson@...com,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH v4 2/4] irq: add irq_domain support to generic-chip

On Fri, Feb 03, 2012 at 04:47:17PM -0700, Grant Likely wrote:
> On Fri, Feb 3, 2012 at 3:35 PM, Rob Herring <robherring2@...il.com> wrote:
...
> > +static struct irq_domain_ops irq_gc_irq_domain_ops = {
> > +       .map = irq_gc_irq_domain_map,
> > +       .xlate = irq_domain_xlate_onetwocell,
> 
> Can we hard-enforce _xlate_twocell here?  Are there any users using
> just one cell?  Alternately, can we make the caller specify if one or
> two cells are expected?
> 
I did not notice this comment until I tried Rob's v5 branch.  The imx5
TZIC uses just one cell.

-- 
Regards,
Shawn
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