linux-kernel - Re: [PATCH v3 2/3] mfd: lubbock_io: add lubbock

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Message-ID: <20150121094711.GP26493@n2100.arm.linux.org.uk>
Date:	Wed, 21 Jan 2015 09:47:11 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, Samuel Ortiz <sameo@...ux.intel.com>,
	Pawel Moll <pawel.moll@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	linux-kernel@...r.kernel.org,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Arnd Bergmann <arnd@...db.de>,
	linux-arm-kernel@...ts.infradead.org,
	Kumar Gala <galak@...eaurora.org>,
	Daniel Mack <daniel@...que.org>
Subject: Re: [PATCH v3 2/3] mfd: lubbock_io: add lubbock_io board

On Wed, Jan 21, 2015 at 08:16:45AM +0000, Lee Jones wrote:
> On Wed, 21 Jan 2015, Robert Jarzmik wrote:
> > > > > platform_get_irq()?
> > > > No. I need the flags.
> > > Where are they used?
> > A couple of lines below, using local "irqflags" variable :
> >        ret = devm_request_irq(&pdev->dev, cot->irq, lubbock_irq_handler,
> >                               irqflags, dev_name(&pdev->dev), cot);
> 
> No, I mean where are they _used_?

They're used in request_irq, and request_irq uses it to set the interrupt
type (edge or level) as specified in the IRQ resource.

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