Document the ACPI thermal zone pattern used across multiple mainboards that implement five-level fan control via power resource state machines. This pattern is used by 9 mainboards including Google Chromebooks (beltino, jecht variants), Samsung stumpy, and Intel reference boards (wtm2, baskingridge, emeraldlake2). The documentation covers: - Power resource state machine implementation - Temperature management via PECI/SuperIO - Active and passive cooling policies - Critical FNP4._OFF no-op requirement for Windows compatibility - Implementation variations and checklist for new boards Initial framework generated by Cursor AI, heavily edited thereafter. Change-Id: I4174a4552c97fb85a894f5362948d57057cacb81 Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/89843 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Sean Rhodes <sean@starlabs.systems> |
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| .. | ||
| _static | ||
| acpi | ||
| arch | ||
| community | ||
| contributing | ||
| drivers | ||
| getting_started | ||
| gfx | ||
| infrastructure | ||
| internals | ||
| lib | ||
| mainboard | ||
| northbridge | ||
| releases | ||
| RFC | ||
| sbom | ||
| security | ||
| soc | ||
| superio | ||
| technotes | ||
| tutorial | ||
| util | ||
| vendorcode | ||
| .gitignore | ||
| .mdl_style.rb | ||
| acronyms.md | ||
| AMD-S3.txt | ||
| beginverbatim.tex | ||
| cbfs.txt | ||
| codeflow.svg | ||
| conf.py | ||
| COPYING | ||
| coreboot_logo.bmp | ||
| coreboot_logo.png | ||
| coreboot_logo.svg | ||
| corebootBuildingGuide.tex | ||
| distributions.md | ||
| documentation_license.md | ||
| endverbatim.tex | ||
| external_docs.md | ||
| gcov.txt | ||
| hypertransport.svg | ||
| index.md | ||
| Makefile | ||
| Makefile.sphinx | ||
| payloads.md | ||
| POSTCODES | ||
| util.md | ||