From: Shawn Guo <shawn.guo@freescale.com>
Date: Sat, 19 Apr 2014 02:58:22 +0000 (+0800)
Subject: ARM: imx: add shared gate clock support
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~52^2~10^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9f28cdf21679792c30d9f5eebd01b7e04fe658f;p=pandora-kernel.git

ARM: imx: add shared gate clock support

It's quite common on i.MX that one gate bit controls the gating of
multiple clocks, i.e. this is a shared gate.  The patch adds the
function imx_clk_gate2_shared() for such case.  The clocks controlled
by the same gate bits should call this function with a pointer to a
single share count variable, so that the gate bits will only be
operated on the first enabling and the last disabling of these shared
gate clocks.

Thanks to Gerhard Sittig <gsi@denx.de> for this idea.

Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
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