linux-kernel - Re: [PATCH 2/2] rtc: omap: add rtc wakeup support to alarm events

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Date:	Fri, 31 May 2013 10:41:22 -0700
From:	Kevin Hilman <khilman@...aro.org>
To:	Hebbar Gururaja <gururaja.hebbar@...com>
Cc:	<akpm@...ux-foundation.org>, <linux@....linux.org.uk>,
	<zonque@...il.com>, <linux-arm-kernel@...ts.infradead.org>,
	<grant.likely@...aro.org>, <rob.herring@...xeda.com>,
	<rob@...dley.net>, <a.zummo@...ertech.it>,
	<devicetree-discuss@...ts.ozlabs.org>, <linux-doc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <rtc-linux@...glegroups.com>,
	<davinci-linux-open-source@...ux.davincidsp.com>,
	<vaibhav.bedia@...com>, <sudhakar.raj@...com>
Subject: Re: [PATCH 2/2] rtc: omap: add rtc wakeup support to alarm events

Hebbar Gururaja <gururaja.hebbar@...com> writes:

> On some platforms (like AM33xx), a special register (RTC_IRQWAKEEN)
> is available to enable Wakeup feature for Alarm Events.
>
> Since new platforms/Boards are now added through DT only, this feature
> is supported via DT property only.

> Platforms using such IP should add the property "ti,has_irq_wake_enb"
> in rtc DT node.

This is a property of the IP, not the board.  Can't you detect this
based on the revision of the IP?

Kevin
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