linux-toradex.git/include/linux/thermal.h, branch v4.14-rc5

thermal: int3400_thermal: process "thermal table changed" event

2017-08-11T02:51:22+00:00

Some BIOS implement ACPI notification code 0x83 to indicate active
relationship table(ART) and/or thermal relationship table(TRT) changes
to INT3400 device. This event needs to be propagated to user space so
that it can be handled by the user space thermal daemon.

Signed-off-by: Brian Bian 
Signed-off-by: Zhang Rui

thermal core: convert ID allocation to IDA

2017-01-04T04:47:28+00:00

The thermal core does not use the ability to look up pointers by ID, so
convert it from using an IDR to the more space-efficient IDA.

Signed-off-by: Matthew Wilcox 
Signed-off-by: Zhang Rui

thermal: core: move trips attributes to tz->device.groups

2016-11-23T02:06:12+00:00

Finally, move the last thermal zone sysfs attributes to
tz->device.groups: trips attributes. This requires adding a
attribute_group to thermal_zone_device, creating it dynamically, and
then setting all trips attributes in it. The trips attribute is then
added to the tz->device.groups.

As the removal of all attributes are handled by device core, the device
remove calls are not needed anymore.

Cc: Zhang Rui 
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin 
Signed-off-by: Zhang Rui

thermal: Enhance thermal_zone_device_update for events

2016-09-27T06:35:21+00:00

Added one additional parameter to thermal_zone_device_update() to provide
caller with an optional capability to specify reason.
Currently this event is used by user space governor to trigger different
processing based on event code. Also it saves an additional call to read
temperature when the event is received.
The following events are cuurently defined:
- Unspecified event
- New temperature sample
- Trip point violated
- Trip point changed
- thermal device up and down
- thermal device power capability changed

Signed-off-by: Srinivas Pandruvada 
Signed-off-by: Zhang Rui

thermal: streamline get_trend callbacks

2016-09-27T06:02:16+00:00

The .get_trend callback in struct thermal_zone_device_ops has
the prototype:
        int (*get_trend) (struct thermal_zone_device *, int,
                          enum thermal_trend *);
whereas the .get_trend callback in struct thermal_zone_of_device_ops
has:
        int (*get_trend)(void *, long *);

Streamline both prototypes and add the trip argument to the OF callback
aswell and use enum thermal_trend * instead of an integer pointer.

While the OF prototype may be the better one, this should be decided at
framework level and not on OF level.

Signed-off-by: Sascha Hauer 
Signed-off-by: Caesar Wang 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Cc: linux-pm@vger.kernel.org
Reviewed-by: Keerthy 
Signed-off-by: Eduardo Valentin 
Signed-off-by: Zhang Rui

thermal: of: implement .set_trips for device tree thermal zones

2016-09-27T06:02:16+00:00

This patch implements .set_trips for device tree thermal zones.
As the hardware-tracked trip points is supported by thermal core patch[0].

patch[0]
"thermal: Add support for hardware-tracked trip points".

Signed-off-by: Sascha Hauer 
Signed-off-by: Caesar Wang 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Reviewed-by: Javi Merino 
Signed-off-by: Eduardo Valentin 
Signed-off-by: Zhang Rui

thermal: Add support for hardware-tracked trip points

2016-09-27T06:02:16+00:00

This adds support for hardware-tracked trip points to the device tree
thermal sensor framework.

The framework supports an arbitrary number of trip points. Whenever
the current temperature is updated, the trip points immediately
below and above the current temperature are found. A .set_trips
callback is then called with the temperatures. If there is no trip
point above or below the current temperature, the passed trip
temperature will be -INT_MAX or INT_MAX respectively. In this callback,
the driver should program the hardware such that it is notified
when either of these trip points are triggered. When a trip point
is triggered, the driver should call `thermal_zone_device_update'
for the respective thermal zone. This will cause the trip points
to be updated again.

If .set_trips is not implemented, the framework behaves as before.

This patch is based on an earlier version from Mikko Perttunen


Signed-off-by: Sascha Hauer 
Signed-off-by: Caesar Wang 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Cc: linux-pm@vger.kernel.org
Reviewed-by: Javi Merino 
Signed-off-by: Eduardo Valentin 
Signed-off-by: Zhang Rui

thermal: core: export apis to get slope and offset

2016-09-27T06:02:16+00:00

Add apis for platform thermal drivers to query for slope and offset
attributes, which might be needed for temperature calculations.

Signed-off-by: Rajendra Nayak 
Signed-off-by: Eduardo Valentin 
Signed-off-by: Zhang Rui

thermal: add the note for set_trip_temp

2016-06-01T14:25:48+00:00

Fixes commit 60f9ce3ada53
("thermal: of-thermal: allow setting trip_temp on hardware")

Signed-off-by: Caesar Wang 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Cc: linux-pm@vger.kernel.org
Signed-off-by: Zhang Rui

thermal: of-thermal: allow setting trip_temp on hardware

2016-05-17T14:28:28+00:00

In current of-thermal, the .set_trip_temp only support to
set trip_temp for SW. But some sensors support to set
trip_temp on hardware, so that can trigger interrupt,
shutdown or any other events.
This patch adds .set_trip_temp() callback in
thermal_zone_of_device_ops{}, so that the sensor device can
use it to set trip_temp on hardware.

Signed-off-by: Wei Ni 
Signed-off-by: Eduardo Valentin