ARM: zynq: PM: Enable DDR clock stop
The DDR controller can detect idle periods and leverage low power features clock stop. When new requests occur, the DDRC resumes normal operation. Signed-off-by: NSoren Brinkmann <soren.brinkmann@xilinx.com> Acked-by: NDaniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
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arch/arm/mach-zynq/pm.c
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