From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] ARM: Kirkwood: convert ns2 boards to pinctrl
Date: Tue, 8 Jan 2013 17:21:04 +0100 [thread overview]
Message-ID: <20130108172104.7238e24a@skate> (raw)
In-Reply-To: <20130108161310.GD3392@lunn.ch>
Dear Andrew Lunn,
On Tue, 8 Jan 2013 17:13:10 +0100, Andrew Lunn wrote:
> > I was not sure about that. As gpio_request triggers the mpp
> > configuration at run time, IMHO there is no point for an initial and
> > statical configuration, except for a documentation purpose.
>
> [Goes away and reads Docunmentation/gpio.txt]
>
> Yes, you appear to be correct. Its not necessary. Don't know that.
Yes, Simon is correct.
gpio_request()
-> gpio/gpio-mvebu.c:mvebu_gpio_request()
-> pinctrl/core.c:pinctrl_request_gpio()
-> pinctrl/pinmux.c:pinmux_request_gpio()
-> pinctrl/pinmux.c:pin_request()
-> pinctrl/mvebu/pinctrl-mvebu.c:mvebu_pinmux_gpio_request_enable()
-> which muxes the pin as GPIO
Pffiou :-)
Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
next prev parent reply other threads:[~2013-01-08 16:21 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-08 14:36 [PATCH] ARM: Kirkwood: convert ns2 boards to pinctrl Simon Guinot
2013-01-08 14:49 ` Andrew Lunn
2013-01-08 15:09 ` Simon Guinot
2013-01-08 16:13 ` Andrew Lunn
2013-01-08 16:21 ` Thomas Petazzoni [this message]
2013-01-08 16:15 ` Andrew Lunn
2013-01-08 16:18 ` Simon Guinot
2013-01-08 16:30 ` Andrew Lunn
2013-01-08 16:39 ` Jason Cooper
2013-01-08 16:55 ` Simon Guinot
2013-01-08 17:07 ` Jason Cooper
2013-01-08 17:51 ` Simon Guinot
2013-01-10 1:32 ` Jason Cooper
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