ARM:exynos5:power-domain: Save and restore CLK_TOP_SRC3 via clock framework.

After Suspend-Resume operation of exynos5, CLK_TOP_SRC3 register modified
while power gating G-scaler and MFC power domains.This is seen only after suspend and resume.

The solution to this problem is to save CLK_SRC_TOP3 register and restore it while powergating. But CLK_SRC_TOP3 register cannot accessed directly by power domain code.
Please refer below URL to know the background of this issue.
http://www.mail-archive.com/linux-samsung-
soc at vger.kernel.org/msg14347.html.

This patch set adds clock framework support for save and restore clock register (CLK_SRC_TOP3) for G-scaler and MFC power domains.

This patch set depends on
http://www.mail-archive.com/linux-samsung-
soc at vger.kernel.org/msg14648.html

Prasanna Kumar (3):
ARM: dts: exynos5: Add power domain clocks to pd node of Gscaler and
MFC
ARM:exynos5:dts: Bindings for clock definitions are added.
ARM: exynos5: Add clock save and restore operation(CLK_SRC_TOP3) using
clock framework.

 .../bindings/arm/exynos/power_domain.txt           |   14 ++
 arch/arm/boot/dts/exynos5250.dtsi                  |    2 +
 arch/arm/mach-exynos/pm_domains.c                  |  125
++++++++++++++++++++
 3 files changed, 141 insertions(+), 0 deletions(-)

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1.7.5.4