diff options
| author | Peter Feuerer <peter@piie.net> | 2014-07-22 17:37:13 +0200 |
|---|---|---|
| committer | Zhang Rui <rui.zhang@intel.com> | 2014-08-27 15:45:58 +0800 |
| commit | e4dbf98f7f169346f57296e173e883b7330076ab (patch) | |
| tree | 9716c985db04ada091fbb35a9b93a9494e9b13e8 /drivers/thermal/thermal_core.h | |
| parent | 52addcf9d6669fa439387610bc65c92fa0980cef (diff) | |
thermal: Added Bang-bang thermal governor
The bang-bang thermal governor uses a hysteresis to switch abruptly on
or off a cooling device. It is intended to control fans, which can
not be throttled but just switched on or off.
Bang-bang cannot be set as default governor as it is intended for
special devices only. For those special devices the driver needs to
explicitely request it.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Andreas Mohr <andi@lisas.de>
Cc: Borislav Petkov <bp@suse.de>
Cc: Javi Merino <javi.merino@arm.com>
Cc: linux-pm@vger.kernel.org
Signed-off-by: Peter Feuerer <peter@piie.net>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'drivers/thermal/thermal_core.h')
| -rw-r--r-- | drivers/thermal/thermal_core.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 3db339fb636f..d15d243de27a 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -69,6 +69,14 @@ static inline int thermal_gov_fair_share_register(void) { return 0; } static inline void thermal_gov_fair_share_unregister(void) {} #endif /* CONFIG_THERMAL_GOV_FAIR_SHARE */ +#ifdef CONFIG_THERMAL_GOV_BANG_BANG +int thermal_gov_bang_bang_register(void); +void thermal_gov_bang_bang_unregister(void); +#else +static inline int thermal_gov_bang_bang_register(void) { return 0; } +static inline void thermal_gov_bang_bang_unregister(void) {} +#endif /* CONFIG_THERMAL_GOV_BANG_BANG */ + #ifdef CONFIG_THERMAL_GOV_USER_SPACE int thermal_gov_user_space_register(void); void thermal_gov_user_space_unregister(void); |