mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 17:08:10 +00:00
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>
20 lines
520 B
C
20 lines
520 B
C
/*
|
|
* Copyright (C) 2012 Marvell
|
|
*
|
|
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
|
*
|
|
* This file is licensed under the terms of the GNU General Public
|
|
* License version 2. This program is licensed "as is" without any
|
|
* warranty of any kind, whether express or implied.
|
|
*/
|
|
|
|
#ifndef __MVEBU_PMSU_H__
|
|
#define __MVEBU_PMSU_H__
|
|
|
|
#ifdef CONFIG_MACH_MVEBU_V7
|
|
int mvebu_pmsu_dfs_request(int cpu);
|
|
#else
|
|
static inline int mvebu_pmsu_dfs_request(int cpu) { return -ENODEV; }
|
|
#endif
|
|
|
|
#endif /* __MVEBU_PMSU_H__ */
|