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yaml
---
r: 339267
b: refs/heads/master
c: 1cc807a
h: refs/heads/master
i:
  339265: 7589d85
  339263: 96fdf8d
v: v3
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Durgadoss R authored and Zhang Rui committed Nov 5, 2012
1 parent 41263ed commit 7469229
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Showing 4 changed files with 76 additions and 1 deletion.
2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: e151a202a084f9f4310d1aa4398325c56ca95fda
refs/heads/master: 1cc807a234cb988d69ba18f6a3a1c68d71e54bed
6 changes: 6 additions & 0 deletions trunk/drivers/thermal/Kconfig
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Expand Up @@ -67,3 +67,9 @@ config STEP_WISE
depends on THERMAL
help
Enable this to manage platform thermals using a simple linear

config USER_SPACE
bool "User_space thermal governor"
depends on THERMAL
help
Enable this to let the user space manage the platform thermals.
1 change: 1 addition & 0 deletions trunk/drivers/thermal/Makefile
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Expand Up @@ -9,3 +9,4 @@ obj-$(CONFIG_RCAR_THERMAL) += rcar_thermal.o
obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o
obj-$(CONFIG_FAIR_SHARE) += fair_share.o
obj-$(CONFIG_STEP_WISE) += step_wise.o
obj-$(CONFIG_USER_SPACE) += user_space.o
68 changes: 68 additions & 0 deletions trunk/drivers/thermal/user_space.c
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/*
* user_space.c - A simple user space Thermal events notifier
*
* Copyright (C) 2012 Intel Corp
* Copyright (C) 2012 Durgadoss R <durgadoss.r@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/module.h>
#include <linux/thermal.h>

#include "thermal_core.h"

/**
* notify_user_space - Notifies user space about thermal events
* @tz - thermal_zone_device
*
* This function notifies the user space through UEvents.
*/
int notify_user_space(struct thermal_zone_device *tz, int trip)
{
mutex_lock(&tz->lock);
kobject_uevent(&tz->device.kobj, KOBJ_CHANGE);
mutex_unlock(&tz->lock);
return 0;
}

struct thermal_governor thermal_gov_user_space = {
.name = "user_space",
.throttle = notify_user_space,
.owner = THIS_MODULE,
};

static int __init thermal_gov_user_space_init(void)
{
return thermal_register_governor(&thermal_gov_user_space);
}

static void __exit thermal_gov_user_space_exit(void)
{
thermal_unregister_governor(&thermal_gov_user_space);
}

/* This should load after thermal framework */
fs_initcall(thermal_gov_user_space_init);
module_exit(thermal_gov_user_space_exit);

MODULE_AUTHOR("Durgadoss R");
MODULE_DESCRIPTION("A user space Thermal notifier");
MODULE_LICENSE("GPL");

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