From 5ada4550e86b081b889bced50e5ab6c510f9cdd7 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:44 -0800
Subject: [PATCH] backlight: atmel-pwm-bl: use gpio_is_valid

Use gpio_is_valid rather than open coding the more restrictive != -1
test.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
Reading git-format-patch failed