From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Fri, 25 Jan 2013 08:39:34 +0000 (+0100)
Subject: spi: spi-gpio: Add checks for the dt properties
X-Git-Tag: v3.9-rc1~148^2~27^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0202a32d5f4a129ced47db76001f958cd33adeb7;p=pandora-kernel.git

spi: spi-gpio: Add checks for the dt properties

The bindings assumed that the gpios properties were always there, which
made the NO_TX and NO_RX mode not usable from device tree. Add extra
checks to make sure that the driver can work if either MOSI or MISO is
not used.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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