From: Liu Ying <Ying.Liu@freescale.com>
Date: Thu, 4 Jul 2013 09:22:26 +0000 (+0800)
Subject: ARM: imx: add common clock support for fixup div
X-Git-Tag: v3.12-rc1~115^2~6^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cbe7fc8aaeefc71a75c2688602ba5bb570c0a265;p=pandora-kernel.git

ARM: imx: add common clock support for fixup div

One register may have several fields to control some clocks. It
is possible that the read/write values of some fields may map to
different real functional values, so writing to the other fields
in the same register may break a working clock tree. A real case
is the aclk_podf field in the register 'CCM Serial Clock Multiplexer
Register 1' of i.MX6Q/SDL SoC. This patch introduces a fixup hook
for divider clock which is called before writing a value to clock
registers to support this kind of divider clocks.

Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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