From mboxrd@z Thu Jan  1 00:00:00 1970
From: linux@prisktech.co.nz (Tony Prisk)
Date: Thu, 21 Feb 2013 20:11:20 +1300
Subject: GPIO sysfs 'default' values
Message-ID: <1361430680.10390.7.camel@gitbox>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Hi Grant, Linus.

I was testing our new gpio/pinctrl driver today and noticed something a
little weird.

I exported gpio0 via sysfs and echoed the direction value - it was 'in'.
This pin is used to control an LCD panel, and is actually in 'out' mode.
If I write 'in' to direction, it changes mode to 'in' and the panel
turns off. Setting it back to 'out' and value=0, and the panel turns on
again.

I noticed that I had no gpiochip->get_direction, so I added it, but the
result was the same.

Any idea what I've missed?

Regards
Tony Prisk