linux-kernel - Re: [PATCH 0/2] ARM: mvebu: Add DLINK-DNS327L support

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Message-ID: <20150411212823.GI5244@lunn.ch>
Date:	Sat, 11 Apr 2015 23:28:23 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	Andrew Andrianov <andrew@...mnt.org>,
	Gregory Clement <gregory.clement@...e-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Linus Walleij <linus.walleij@...aro.org>,
	Wolfram Sang <wsa@...-dreams.de>, devicetree@...r.kernel.org,
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/2] ARM: mvebu: Add DLINK-DNS327L support

> When power button is pressed to turn the NAS off, weltrend signals 
> the SoC by driving mpp63 line low. Apparently right now pinctrl assumes
> that this line can only work as 'gpo' that screws up gpio-buttons driver.
> Since without gpio-buttons, mpp63 works as input properly via sysfs 
> interface, I've added a patch for pinctrl-armada-370.c that fixes the 
> issue.

Hi Andrew

This is odd. I just checked the Marvell datasheets, and they list this
pin a GPO.

We probably want Thomas or Gregory to check this with Marvell.

   Andrew
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