kernel/linux.git/Documentation/firmware-guide, branch v6.18.21

Documentation: ACPI: i2c-muxes: fix I2C device references

2025-11-03T16:01:05+00:00

When the device references were changed from relative to absolute in commit e65cb011349e ("Documentation: ACPI: Fix parent device references"), the MUX0 device was omitted from the paths. So add it to fix the references. Fixes: e65cb011349e ("Documentation: ACPI: Fix parent device references") Closes: https://lore.kernel.org/all/48d0fb45-096c-4caa-b51c-753c2f17f018@gmail.com/ Signed-off-by: Jonas Gorski Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20251027192628.130998-1-jonas.gorski@gmail.com Signed-off-by: Rafael J. Wysocki

Merge branch 'acpi-misc'

2025-07-22T15:12:57+00:00

Merge an update fixing typos in ACPI documentation and comments for 6.17-rc1 (Bjorn Helgaas). * acpi-misc: ACPI: Fix typos

ACPI: Fix typos

2025-07-22T15:12:41+00:00

Fix typos in documentation and comments. Signed-off-by: Bjorn Helgaas Link: https://patch.msgid.link/20250722132653.GA2781885@bhelgaas Signed-off-by: Rafael J. Wysocki

Merge branches 'acpi-debug' and 'acpi-docs'

2025-07-22T14:02:02+00:00

Merge an update related to ACPI debugging and ACPI documentation updates for 6.17-rc1: - Enable CONFIG_ACPI_DEBUG by default to make it easier to get ACPI debug messages from OEM platforms (Mario Limonciello) - Fix parent device references in ASL examples in the ACPI documentation and fix spelling and style in the gpio-properties documentation in firmware-guide (Andy Shevchenko) * acpi-debug: ACPI: Enable CONFIG_ACPI_DEBUG by default * acpi-docs: Documentation: ACPI: Fix parent device references Documentation: firmware-guide: gpio-properties: Spelling and style fixes

Documentation: ACPI: Fix parent device references

2025-07-11T09:13:37+00:00

The _CRS resources in many cases want to have ResourceSource field to be a type of ACPI String. This means that to compile properly we need to enclosure the name path into double quotes. This will in practice defer the interpretation to a run-time stage, However, this may be interpreted differently on different OSes and ACPI interpreter implementations. In particular ACPICA might not correctly recognize the leading '^' (caret) character and will not resolve the relative name path properly. On top of that, this piece may be used in SSDTs which are loaded after the DSDT and on itself may also not resolve relative name paths outside of their own scopes. With this all said, fix documentation to use fully-qualified name paths always to avoid any misinterpretations, which is proven to work. Fixes: 8eb5c87a92c0 ("i2c: add ACPI support for I2C mux ports") Reported-by: Yevhen Kondrashyn Cc: All applicable Signed-off-by: Andy Shevchenko Link: https://patch.msgid.link/20250710170225.961303-1-andriy.shevchenko@linux.intel.com Signed-off-by: Rafael J. Wysocki

Documentation: firmware-guide: gpio-properties: Spelling and style fixes

2025-07-02T18:05:52+00:00

- Use consistent style for active-high and active-low - For C and ASL code snippets use 4-space indentation consistently - Interleave case examples with the explanations of the certain case - Remove or add commas when appropriate Signed-off-by: Andy Shevchenko Reviewed-by: Mika Westerberg Link: https://patch.msgid.link/20250626130109.215848-1-andriy.shevchenko@linux.intel.com Signed-off-by: Rafael J. Wysocki

ACPI: APEI: EINJ: Update the documentation for EINJv2 support

2025-06-18T18:49:32+00:00

Add documentation based on implementation of EINJv2 as described in ACPI 6.5.A specification. [Tony: New user interface for device id and syndrome] Link: https://uefi.org/specs/ACPI/6.5_A/18_Platform_Error_Interfaces.html#error-injection Co-developed-by: Tony Luck Signed-off-by: Tony Luck Signed-off-by: Zaid Alali Link: https://patch.msgid.link/20250617193026.637510-8-zaidal@os.amperecomputing.com Signed-off-by: Rafael J. Wysocki

Documentation: ACPI: Use all-string data node references

2025-04-09T14:39:17+00:00

Document that references to data nodes shall use string-only references instead of a device reference and a succession of the first package entries of hierarchical data node references. Fixes: 9880702d123f ("ACPI: property: Support using strings in reference properties") Cc: 6.8+ # 6.8+ Signed-off-by: Sakari Ailus Link: https://patch.msgid.link/20250409084738.3657079-1-sakari.ailus@linux.intel.com [ rjw: Clarifying edits ] Signed-off-by: Rafael J. Wysocki

Documentation: firmware-guide: ACPI: Fix namespace typo

2024-04-26T16:58:13+00:00

The ACPI namespace has always started with LNXSYSTM, not LNXSYSTEM. Fix the documentation accordingly. Signed-off-by: John Watts Signed-off-by: Rafael J. Wysocki

Merge tag 'acpi-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2024-03-19T18:15:14+00:00

Pull more ACPI updates from Rafael Wysocki: "These update ACPI documentation and kerneldoc comments. Specifics: - Add markup to generate links from footnotes in the ACPI enumeration document (Chris Packham) - Update the handle_eject_request() kerneldoc comment to document the arguments of the function and improve kerneldoc comments for ACPI suspend and hibernation functions (Yang Li)" * tag 'acpi-6.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI: PM: Improve kerneldoc comments for suspend and hibernation functions ACPI: docs: enumeration: Make footnotes links ACPI: Document handle_eject_request() arguments