ACPI: thermal_lib: Add functions returning temperature in deci-Kelvin

Browse source

Because the ACPI thermal driver generally operates temperature values
in deci-Kelvin, it needs the library functions returning temperature
for various trip point types to use deci-Kelvin too.

To address that, arrange the ACPI thermal library code in three levels
of functions where the high-level ones will return temperature in
milli-Celsius, as needed by the thermal core and the majority of
thermal drivers, the mid-level ones will return temperature in
deci-Kelvin and will be called internally by the corresponding high-
level functions, and all of the mid-level functions will call the same
low-level one, acpi_trip_temp(), to actually evaluate ACPI objects to
retrieve themperature values from the platform firmware.

Going forward, this will allow the ACPI thermal driver to use the
mid-level functions to provide temperature values needed by it, so as
to reduce code duplication related to evaluating trip temperature ACPI
control methods.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

...

This commit is contained in:

Rafael J. Wysocki 2023-10-17 22:06:52 +02:00

parent f475079881

commit 6908097aa5

1 changed files with 60 additions and 15 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

73

drivers/acpi/thermal_lib.c

View file