linux/drivers/devfreq/governor_performance.c
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   1/*
   2 *  linux/drivers/devfreq/governor_performance.c
   3 *
   4 *  Copyright (C) 2011 Samsung Electronics
   5 *      MyungJoo Ham <myungjoo.ham@samsung.com>
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License version 2 as
   9 * published by the Free Software Foundation.
  10 */
  11
  12#include <linux/devfreq.h>
  13#include "governor.h"
  14
  15static int devfreq_performance_func(struct devfreq *df,
  16                                    unsigned long *freq)
  17{
  18        /*
  19         * target callback should be able to get floor value as
  20         * said in devfreq.h
  21         */
  22        if (!df->max_freq)
  23                *freq = UINT_MAX;
  24        else
  25                *freq = df->max_freq;
  26        return 0;
  27}
  28
  29static int performance_init(struct devfreq *devfreq)
  30{
  31        return update_devfreq(devfreq);
  32}
  33
  34const struct devfreq_governor devfreq_performance = {
  35        .name = "performance",
  36        .init = performance_init,
  37        .get_target_freq = devfreq_performance_func,
  38        .no_central_polling = true,
  39};
  40
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