From: Andres Salomon <dilinger@queued.net>
Date: Fri, 18 Feb 2011 03:07:34 +0000 (-0800)
Subject: mfd: Add refcounting support to mfd_cells
X-Git-Tag: v2.6.39-rc1~96^2~43
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1e29af62f2b285bd18685da93c3ce8c33ca2d1db;p=pandora-kernel.git

mfd: Add refcounting support to mfd_cells

This provides convenience functions for sharing of cells across
multiple mfd clients.  Mfd drivers can provide enable/disable hooks
to actually tweak the hardware, and clients can call
mfd_shared_cell_{en,dis}able without having to worry about whether
or not another client happens to have enabled or disabled the
cell/hardware.

Note that this is purely optional; drivers can continue to use
the mfd_cell's enable/disable hooks for their own purposes, if
desired.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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