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2014-07-16ARM: mvebu: extend PMSU code to support dynamic frequency scalingThomas Petazzoni
This commit adds the necessary code in the Marvell EBU PMSU driver to support dynamic frequency scaling. In essence, what this new code does is that it: * registers the frequency operating points supported by the CPU; * registers a clock notifier of the CPU clocks. The notifier function listens to the newly introduced APPLY_RATE_CHANGE event, and uses that to finalize the frequency transition by doing the part of the procedure that involves the PMSU; * registers a platform device for the cpufreq-generic driver, which will take care of the CPU frequency transitions. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Link: https://lkml.kernel.org/r/1404920715-19834-3-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>