linux-stable.git/drivers/thermal, branch v2.6.30

thermal: fix off-by-1 error in trip point trigger condition

2009-05-14T17:40:53+00:00

This patch fixes a regression caused by commit
b1569e99c795bf83b4ddf41c4f1c42761ab7f75e
"ACPI: move thermal trip handling to generic thermal layer"
which accidentally changed trip point trigger condition to
  temp > trip_temp

This patch changes the trigger condition back to
  temp >= trip_temp

Signed-off-by: Vladimir Zajac 
Acked-by: Zhang Rui 
Acked-by: Matthew Garrett 
Signed-off-by: Andrew Morton 
Signed-off-by: Len Brown

thermal: support forcing support for passive cooling

2009-03-27T20:58:22+00:00

Due to poor thermal design or Linux driving hardware outside its thermal
envelope, some systems will reach critical temperature and shut down
under high load. This patch adds support for forcing a polling-based
passive trip point if the firmware doesn't provide one. The assumption
is made that the processor is the most practical means to reduce the
dynamic heat generation, so hitting the passive thermal limit will cause
the CPU to be throttled until the temperature stabalises around the
defined value.

UI is provided via a "passive" sysfs entry in the thermal zone
directory. It accepts a decimal value in millidegrees celsius, or "0" to
disable the functionality. Default behaviour is for this functionality
to be disabled.

Signed-off-by: Matthew Garrett 
Signed-off-by: Len Brown

ACPI: move thermal trip handling to generic thermal layer

2009-02-20T23:41:56+00:00

The ACPI code currently carries its own thermal trip handling, meaning that
any other thermal implementation will need to reimplement it. Move the code
to the generic thermal layer.

Signed-off-by: Matthew Garrett 
Signed-off-by: Len Brown

thermal: use integers rather than strings for thermal values

2009-02-20T15:52:37+00:00

The thermal API currently uses strings to pass values to userspace. This
makes it difficult to use from within the kernel. Change the interface
to use integers and fix up the consumers.

Signed-off-by: Matthew Garrett 
Acked-by: Zhang Rui 
Acked-by: Thomas Renninger 
Signed-off-by: Len Brown

thermal: struct device - replace bus_id with dev_name(), dev_set_name()

2009-01-06T18:44:37+00:00

Signed-off-by: Kay Sievers 
Signed-off-by: Greg Kroah-Hartman

thermal: Create CONFIG_THERMAL_HWMON=n

2008-06-25T23:25:42+00:00

A bug in libsensors <= 2.10.6 is exposed
when this new hwmon I/F is enabled.
Create CONFIG_THERMAL_HWMON=n
until some time after libsensors 2.10.7 ships
so those users can run the latest kernel.

libsensors 3.x is already fixed -- those users
can use CONFIG_THERMAL_HWMON=y now.

Signed-off-by: Rene Herman 
Acked-by: Mark M. Hoffman 
Signed-off-by: Len Brown

thermal: re-name thermal.c to thermal_sys.c

2008-04-29T07:12:17+00:00

thermal_sys was already the name of the resulting module,
and it is built from  this one source file.

Signed-off-by: Len Brown

thermal: add hwmon sysfs I/F

2008-04-29T06:48:01+00:00

Add hwmon sys I/F for generic thermal driver.

Note: we have one hwmon class device for EACH TYPE of the thermal zone device.

Signed-off-by: Zhang Rui 
Acked-by: Jean Delvare 
Signed-off-by: Len Brown

thermal: add the support for building the generic thermal as a module

2008-04-29T06:44:00+00:00

Build the generic thermal driver as module "thermal_sys".

Make ACPI thermal, video, processor and fan SELECT the generic
thermal driver, as these drivers rely on it to build the sysfs I/F.

Signed-off-by: Zhang Rui 
Acked-by: Jean Delvare 
Signed-off-by: Len Brown

acpi thermal trip points increased to 12

2008-04-16T02:35:41+00:00

The THERMAL_MAX_TRIPS value is set to 10.  It is too few for the Compaq AP550
machine which has 12 trip points.

Signed-off-by: Krzysztof Helt 
Cc: Len Brown 
Cc: Zhang Rui 
Cc: "Rafael J. Wysocki" 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds