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

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Date:	Mon, 13 Apr 2015 16:39:10 +0200
From:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:	Andrew Lunn <andrew@...n.ch>
CC:	Andrew Andrianov <andrew@...mnt.org>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	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

Hi Andrew,

On 11/04/2015 23:28, Andrew Lunn wrote:
>> 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.

I have check on the datasheet I have (in case of it was different of the public one)
and for all the variant of the Armada 370:  88F6710, 88F6707, and 88F6W11 the MPP63
is list as GPO.

I will ask Marvell to see if it was a typo on their datasheet.


Thanks,

Gregory


> 
>    Andrew
> 


-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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