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2014-07-16ARM: mvebu: extend PMSU code to support dynamic frequency scalingThomas Petazzoni1-0/+20
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>