Commit Graph

14 Commits

Author SHA1 Message Date
Eduardo Valentin 9b19ec39b0 thermal: thermal_core: remove usage of IS_ERR_OR_NULL
This patch changes the driver to avoid the usage of IS_ERR_OR_NULL()
macro. This macro can lead to dangerous results, like returning
success (0) during a failure scenario (NULL pointer handling).

The case present in this patch has simply be translated to
normal check for NULL and if the pointer has an error code.
The later case is needed because functions like
thermal_zone_get_zone_by_name() could return an ERR_PTR().

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-27 09:28:25 +08:00
Eduardo Valentin a00e55f9c8 thermal: update kernel-doc for thermal_zone_device_register
This patch updates the documentation for thermal_zone_device_register
and removes the warnings generated by scripts/kernel-doc -v.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:39 +08:00
Eduardo Valentin 269c174f27 thermal: update kernel-doc for create_trip_attrs
This patch updates the documentation for create_trip_attrs
and removes the warnings generated by scripts/kernel-doc -v.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:35 +08:00
Eduardo Valentin 3a6eccb352 thermal: update kernel-doc for thermal_cooling_device_register
This patch updates the documentation for thermal_cooling_device_register
and removes the warnings generated by scripts/kernel-doc -v.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:32 +08:00
Eduardo Valentin 9892e5dc56 thermal: update kernel-doc for thermal_zone_unbind_cooling_device
This patch updates the documentation for thermal_zone_unbind_cooling_device
and removes the warnings generated by scripts/kernel-doc -v.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:28 +08:00
Eduardo Valentin d2e4eb83e7 thermal: update kernel-doc for thermal_zone_bind_cooling_device
This patch updates the documentation for thermal_zone_bind_cooling_device
and removes the warnings generated by scripts/kernel-doc -v.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:24 +08:00
Eduardo Valentin 910cb1e34d thermal: use EXPORT_SYMBOL_GPL
Restrict usage of GPL modules.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:19 +08:00
Eduardo Valentin 7b73c99377 thermal: rename notify_thermal_framework to thermal_notify_framework
To follow the prefix names used by the thermal functions,
this patch renames notify_thermal_framework to thermal_notify_framework.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:16 +08:00
Eduardo Valentin 6d8d4974a2 thermal: update driver license
As per the comment at the top of this file, this is a GPLv2 driver.
This patch updates the driver license accordingly.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:12 +08:00
Eduardo Valentin c7a8b9d916 thermal: use strlcpy instead of strcpy
For memory boundaries safety, use strlcpy instead of strcpy.

Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-25 00:56:07 +08:00
Eduardo Valentin 837b26bb2e thermal: expose thermal_zone_get_temp API
This patch exports the thermal_zone_get_temp API so that driver
writers can fetch temperature of thermal zones managed by other
drivers.

Acked-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-15 09:39:02 +08:00
Eduardo Valentin 63c4d919cf thermal: introduce thermal_zone_get_zone_by_name helper function
This patch adds a helper function to get a reference of
a thermal zone, based on the zone type name.

It will perform a zone name lookup and return a reference
to a thermal zone device that matches the name requested.
In case the zone is not found or when several zones match
same name or if the required parameters are invalid, it will return
the corresponding error code (ERR_PTR).

Cc: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
Acked-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2013-04-15 09:34:28 +08:00
Zhang Rui 80a26a5c22 Thermal: build thermal governors into thermal_sys module
The thermal governors are part of the thermal framework,
rather than a seperate feature/module.
Because the generic thermal layer can not work without
thermal governors, and it must load the thermal governors
during its initialization.

Build them into one module in this patch.

This also fix a problem that the generic thermal layer does not
work when CONFIG_THERMAL=m and CONFIG_THERMAL_GOV_XXX=y.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Acked-by: Durgadoss R <durgadoss.r@intel.com>
2013-04-14 23:28:43 +08:00
Zhang Rui 5fc024ab47 Thermal: rename thermal_sys.c to thermal_core.c
this is the preparation work to build all the thermal core framework
source file, like governors, cpu cooling, etc, into one module.

No functional change in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Acked-by: Durgadoss R <durgadoss.r@intel.com>
2013-04-14 02:14:12 +08:00