lwn.git/Documentation/admin-guide/acpi/index.rst, branch v6.7-rc4

Documentation: ACPI: Prune DSDT override documentation from index

2022-10-13T18:33:12+00:00

Commit d206cef03c4827 ("ACPI: docs: Drop useless DSDT override documentation") removes useless DSDT override documentation. However, the commit forgets to prune the documentation entry from table of contents of ACPI admin guide documentation, hence triggers Sphinx warning: Documentation/admin-guide/acpi/index.rst:8: WARNING: toctree contains reference to nonexisting document 'admin-guide/acpi/dsdt-override' Prune the entry to fix the warning. Fixes: d206cef03c4827 ("ACPI: docs: Drop useless DSDT override documentation") Signed-off-by: Bagas Sanjaya Signed-off-by: Rafael J. Wysocki

ACPI: fan: Expose fan performance state information

2019-12-19T21:35:04+00:00

When _FPS indicates variable speed fan support, the thermal cooling device for fan shows max performance state count as "max_state" (greater than or equal to 1). But the thermal cooling device doesn't expose the properties of each performance state. This is not enough for smart fan control user space software, which also considers speed, power and noise level. This change exposes the properties of the fan performance states in the sysfs directory of the ACPI device representing the fan, that is /sys/bus/acpi/devices/devices/INT3404:00 or /sys/bus/platform/devices/PNP0C0B:00. For example: $ ls /sys/bus/acpi/devices/INT3404\:00 description path state0 state11 state4 state7 status hid physical_node state1 state2 state5 state8 subsystem modalias power state10 state3 state6 state9 uevent uid wakeup where each state* attribute lists the properties of a fan performance state in the following format: control_percent:trip_point:speed_rpm:noise_level_mdb:power_mw $ cat /sys/bus/acpi/devices/INT3404\:00/state10 95:0:11600:47500:4500 as documented in Documentation/admin-guide/acpi/fan_performance_states.rst While at it, return the correct error code from acpi_fan_probe() when acpi_fan_get_fps() or acpi_fan_get_fif() fails. Suggested-by: Rafael J. Wysocki Signed-off-by: Srinivas Pandruvada [ rjw: Subject, changelog, documentation ] Signed-off-by: Rafael J. Wysocki

Documentation: ACPI: move ssdt-overlays.txt to admin-guide/acpi and convert to reST

2019-04-25T21:07:20+00:00

This converts the plain text documentation to reStructuredText format and adds it to Sphinx TOC tree. No essential content change. Signed-off-by: Changbin Du Reviewed-by: Mauro Carvalho Chehab Signed-off-by: Rafael J. Wysocki

Documentation: ACPI: move cppc_sysfs.txt to admin-guide/acpi and convert to reST

2019-04-25T21:07:20+00:00

This converts the plain text documentation to reStructuredText format and adds it to Sphinx TOC tree. No essential content change. Signed-off-by: Changbin Du Signed-off-by: Rafael J. Wysocki

Documentation: ACPI: move dsdt-override.txt to admin-guide/acpi and convert to reST

2019-04-25T21:07:20+00:00

Documentation: ACPI: move initrd_table_override.txt to admin-guide/acpi and convert to reST

2019-04-25T21:07:20+00:00

Documentation: add Linux ACPI to Sphinx TOC tree

2019-04-25T21:06:53+00:00

Add below index.rst files for ACPI subsystem. More docs will be added later. o admin-guide/acpi/index.rst o driver-api/acpi/index.rst o firmware-guide/index.rst Signed-off-by: Changbin Du Reviewed-by: Mauro Carvalho Chehab Signed-off-by: Rafael J. Wysocki