kernel-ark/drivers/devfreq/governor_powersave.c
Xiaoguang Chen 0b7c328fd3 PM: devfreq: init performance/powersave governor
Performance and powersave governor's get_target_freq
is not called if driver chooses one of these two governors.
Add init function in governor profile to call update_devfreq
which will call get_target_freq subsequently.

Signed-off-by: Xiaoguang Chen <chenxg@marvell.com>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-05-01 21:23:50 +02:00

37 lines
858 B
C

/*
* linux/drivers/devfreq/governor_powersave.c
*
* Copyright (C) 2011 Samsung Electronics
* MyungJoo Ham <myungjoo.ham@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/devfreq.h>
#include "governor.h"
static int devfreq_powersave_func(struct devfreq *df,
unsigned long *freq)
{
/*
* target callback should be able to get ceiling value as
* said in devfreq.h
*/
*freq = df->min_freq;
return 0;
}
static int powersave_init(struct devfreq *devfreq)
{
return update_devfreq(devfreq);
}
const struct devfreq_governor devfreq_powersave = {
.name = "powersave",
.init = powersave_init,
.get_target_freq = devfreq_powersave_func,
.no_central_polling = true,
};