From fe1229b968e1bd391ce7a89bff51aed10d02b578 Mon Sep 17 00:00:00 2001
From: Joerg Roedel <joro@8bytes.org>
Date: Mon, 4 Feb 2013 20:40:58 +0100
Subject: [PATCH] iommu/tegra: smmu: Use helper function to check for valid
 register offset

Do not repeat the checking loop in the read and write
functions. Use a single helper function for that check and
call it in both accessors.

Signed-off-by: Joerg Roedel <joro@8bytes.org>
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