forked from luck/tmp_suning_uos_patched
a509ea840b
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>
21 lines
520 B
C
21 lines
520 B
C
/*
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* Copyright (C) 2012 Marvell
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*
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* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __MVEBU_PMSU_H__
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#define __MVEBU_PMSU_H__
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#ifdef CONFIG_MACH_MVEBU_V7
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int mvebu_pmsu_dfs_request(int cpu);
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#else
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static inline int mvebu_pmsu_dfs_request(int cpu) { return -ENODEV; }
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#endif
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#endif /* __MVEBU_PMSU_H__ */
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