BFE EngineeringandClaude Fable 5
5155224594
Preparing the repo to go public (ADR-0007): - CI: kernel-build moves from the self-hosted runner to ubuntu-latest (installs its own cross toolchain + qemu, caches the pristine tarball). On a public repo a registered self-hosted runner is reachable from approved fork-PR workflows — i.e. arbitrary code on private infrastructure — and the build never actually needed the SDK host. ADR-0004 marked superseded-in-part; docs/ci-cd.md rewritten (site specifics now live only in the private deployment log). - Licensing: LICENSE gains the GPL-2.0 carve-out for patches/ and the kernel source excerpts (Linux derivatives; per-driver provenance was already tracked in PROVENANCE.md); patches/README.md states it too. - Scrubbed from the tip: bench-unit dev credentials and its gadget IP (m2-boot notes), the site AP SSID+BSSID and a neighboring AP's BSSID and the device WLAN MAC (wifi bring-up evidence — BSSIDs are geolocatable), the runner mesh IP. NOTE: these remain in git history; decision on a pre-publication history rewrite is separate. - Emoji cleanup across 21 tracked files (kernel port docs, review report, enforce-mcdc.sh) per repo text conventions: status marks became [x]/[wip]/[ ]/OK plain text. - "[maintainer]-gated" process phrasing normalized to "maintainer-gated" (attributions in dated evidence docs kept). Verified: zero emojis tracked; scrub grep clean; patches carry no internal references; ci.yml parses; shellcheck unchanged. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
1.5 KiB
PVTM (Process-Voltage-Temperature Monitor) — VERIFIED on warden-c8a3 (2026-08-25)
Whole-driver port: mainline 6.18 has no rockchip pvtm driver; the vendor
drivers/soc/rockchip/rockchip_pvtm.c (GPL-2.0, 1046L) supports rv1106. Copied it in
include/linux/soc/rockchip/pvtm.h; KconfigROCKCHIP_PVTM+ Makefile;=y.
API-delta fixes (6.18)
struct thermal_zone_deviceis now opaque → replacedpvtm->tz->ops->get_temp(...)with the publicthermal_zone_get_temp(pvtm->tz, &cur_temp).- added
#include <linux/of_device.h>forof_match_device(). - copied the vendor-only header
linux/soc/rockchip/pvtm.h.
The real blocker (why it first probed silently)
The vendor of_match_table wraps the rv1106 entries in #ifdef CONFIG_CPU_RV1106 — a
vendor per-SoC symbol that does not exist in mainline. Result: devices
(ff240000.pvtm, ff390000.pvtm) were created + the driver registered, but the
compatibles were compiled out of the match table, so nothing bound and probe never
ran (no dmesg at all). Fix: drop the #ifdef CONFIG_CPU_RV1106 guard — our tree
only builds for rv1106, so the entries are unconditional. (Watch for this guard in any
other vendor driver ported by verbatim copy.)
Evidence
rockchip-pvtm ff240000.pvtm: pvtm@0 probed + ff390000.pvtm: pvtm@0 probed;
/sys/kernel/debug/pvtm/core/value = pvtm: 71682 90462,
/sys/kernel/debug/pvtm/pmu/value = pvtm: 35772 (ring-oscillator counts, the PVT
signal). Exports rockchip_get_pvtm_value() for future DVFS voltage margining.