linux.git/include/linux/thermal.h, branch v6.7-rc2

thermal: core: Pass trip pointer to governor throttle callback

2023-10-20T17:26:37+00:00

Modify the governor .throttle() callback definition so that it takes a
trip pointer instead of a trip index as its second argument, adjust the
governors accordingly and update the core code invoking .throttle().

This causes the governors to become independent of the representation
of the list of trips in the thermal zone structure.

This change is not expected to alter the general functionality.

Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Daniel Lezcano

thermal: core: Drop thermal_zone_device_exec()

2023-10-05T11:32:55+00:00

Because thermal_zone_device_exec() has no users any more and there are
no plans to use it anywhere, revert commit 9a99a996d1ec ("thermal: core:
Introduce thermal_zone_device_exec()") that introduced it.

No functional impact.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Daniel Lezcano

thermal: core: Add function to walk trips under zone lock

2023-10-05T11:13:40+00:00

Add a wrapper around for_each_thermal_trip(), called
thermal_zone_for_each_trip(), that will invoke the former under the
thermal zone lock and pass its return value to the caller.

Two drivers will be modified subsequently to use this new function.

No functional impact.

Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Daniel Lezcano

thermal: core: Allow trip pointers to be used for cooling device binding

2023-09-28T10:57:10+00:00

Add new helper functions, thermal_bind_cdev_to_trip() and
thermal_unbind_cdev_from_trip(), to allow a trip pointer to be used for
binding a cooling device to a trip point and unbinding it, respectively,
and redefine the existing helpers, thermal_zone_bind_cooling_device()
and thermal_zone_unbind_cooling_device(), as wrappers around the new
ones, respectively.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Daniel Lezcano

thermal: core: Drop trips_disabled bitmask

2023-09-25T09:46:19+00:00

After recent changes, thermal_zone_get_trip() cannot fail, as invoked
from thermal_zone_device_register_with_trips(), so the only role of
the trips_disabled bitmask is struct thermal_zone_device is to make
handle_thermal_trip() skip trip points whose temperature was initially
zero.  However, since the unit of temperature in the thermal core is
millicelsius, zero may very well be a valid temperature value at least
in some usage scenarios and the trip temperature may as well change
later.  Thus there is no reason to permanently disable trip points
with initial temperature equal to zero.

Accordingly, drop the trips_disabled bitmask along with the code
related to it.

Signed-off-by: Rafael J. Wysocki 
Tested-by: Ido Schimmel 
Acked-by: Daniel Lezcano

thermal: Constify the trip argument of the .get_trend() zone callback

2023-09-11T15:16:40+00:00

Add 'const' to the definition of the 'trip' argument of the
.get_trend() thermal zone callback to indicate that the trip point
passed to it should not be modified by it and adjust the
callback functions implementing it, thermal_get_trend() in the
ACPI thermal driver and __ti_thermal_get_trend(), accordingly.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki 
Reviewed-by: Michal Wilczynski

thermal: core: Drop thermal_zone_device_register()

2023-09-05T19:42:18+00:00

There are no more users of thermal_zone_device_register(), so drop it
from the core.

Note that thermal_zone_device_register_with_trips() may be renamed to
thermal_zone_device_register() in the future, but only after a grace
period allowing all of the possible work in progress that may be using
the latter to adjust.

Signed-off-by: Rafael J. Wysocki

thermal: core: Add function for registering tripless thermal zones

2023-09-05T19:42:18+00:00

Multiple callers of thermal_zone_device_register() don't pass any trips
to it and they might use a shortened argument list for that, so add
a special function with fewer arguments for this purpose.

Signed-off-by: Rafael J. Wysocki

thermal: core: Clean up headers of thermal zone registration functions

2023-09-05T19:42:18+00:00

For consistency, add a missing thermal_zone_device_register_with_trips()
stub for the CONFIG_THERMAL unset case, specify argument names in all of
the thermal zone registration and unregistration function headers and
make all of them use white space consistently.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki

thermal: core: Rework .get_trend() thermal zone callback

2023-08-29T18:48:35+00:00

Passing a struct thermal_trip pointer instead of a trip index to the
.get_trend() thermal zone callback allows one of its 2 implementations,
the thermal_get_trend() function in the ACPI thermal driver, to be
simplified quite a bit, and the other implementation of it in the
ti-soc-thermal driver does not even use the relevant callback argument.

For this reason, change the .get_trend() thermal zone callback
definition and adjust the related code accordingly.

Signed-off-by: Rafael J. Wysocki