From 8d12c32c19a2719f6a96a23e94d95699c47e55d0 Mon Sep 17 00:00:00 2001
From: Stelian Pop <stelian@popies.net>
Date: Wed, 5 Mar 2008 22:20:36 +0100
Subject: [PATCH] atmel_usba_udc: Kill GPIO_PIN_NONE

GPIO_PIN_NONE should no longer be used. Replace it with a simple
test against negative values.

This is a transitional patch, waiting for gpio_is_valid() to be
merged at which point the tests should be revisited.

Signed-off-by: Stelian Pop <stelian@popies.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
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