From: Kevin Hilman <khilman@ti.com>
Date: Tue, 21 Sep 2010 16:34:09 +0000 (-0600)
Subject: OMAP: hwmod: separate list locking and hwmod hardware locking
X-Git-Tag: v2.6.37-rc1~121^2~56^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12b1fdb45c2594070bb36e39cd89a33547aad8fb;p=pandora-kernel.git

OMAP: hwmod: separate list locking and hwmod hardware locking

Currently omap_hwmod_mutex is being used to protect both the list
access/modification and concurrent access to hwmod functions.  This
patch separates these two types of locking.

First, omap_hwmod_mutex is used only to protect access and
modification of omap_hwmod_list.  Also cleaned up some comments
referring to this mutex that are no longer needed.

Then, for protecting concurrent access to hwmod functions, use a
per-hwmod mutex.  This protects concurrent access to a single hwmod,
but would allow concurrent access to different hwmods.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
[paul@pwsan.com: added structure documentation; changed mutex variable
 name]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---

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