From 94a63da0ac1a67bfb8b30aec1086523c5031ea5a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 6 Jun 2013 12:10:23 +0100
Subject: [PATCH] irqdomain: document the simple domain first_irq

The first_irq needs to be zero to get a linear domain and that
comes with special semantics. We want to simplify this going
forward but some documentation never hurts.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
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