From 8b2463d8cae2dda0c98ab5a15f25a0350a0e998d Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Tue, 4 Mar 2014 15:25:56 +0100
Subject: [PATCH] clocksource: sh_mtu2: Replace global spinlock with a
 per-device spinlock

The global spinlock is used to protect the shared start/stop register.
Now that all MTU2 channels are handled by a single device instance, use
a per-device spinlock.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Wolfram Sang <wsa@sang-engineering.com>
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