From 1b4c5a6e6b73b082170bfcbf1ff3e2fcf2e7530c Mon Sep 17 00:00:00 2001
From: Gernot Vormayr <gvormayr@gmail.com>
Date: Wed, 24 Sep 2014 00:58:45 +0200
Subject: [PATCH] gpio: Fix ngpio in gpio-xilinx driver

If one adds gpio-controller; to the chip in the devicetree, then
initialization fails with 'gpiochip_find_base: cannot find free range',
because ngpio is 0. This patch fixes the bug.

This version includes the suggestions from Linus Walleij.

Tested on ml507 board.

Signed-off-by: Gernot Vormayr <gvormayr@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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