NoahandClaude Opus 5
4a5481b6a5
The guard alone did not fix flare-edge#160: with dr_mode="otg" and the live re-init skipped, the controller still died 14s after carrier-on under load (carrier 54.1s, first Tx timeout 63.4s, HC died 68.4s). That means either the OTG event path is not the trigger, or the harm comes from somewhere else in it. dr_mode="host" removes far more than this one call: it also skips dwc3_otgregs_init() and hands port-power control to xHCI instead of the OTG block. IRQ 47 is shared between dwc3-otg and xhci-hcd, so /proc/interrupts cannot say whether OTG events fire at all. CONFIG_DYNAMIC_DEBUG is off, so dev_dbg is compiled out and invisible. So this build logs, ratelimited and always compiled: - every OTG hardware event with its OEVT value, role and restart flag - each time the guard skips a re-init on a live host Run under load, that answers whether the OTG path is even active during the failure window, instead of guessing a third patch. Also worth measuring: load accelerates this dramatically -- 452-587s idle versus 9-14s under line-rate traffic -- so idle soaks are not comparable to load tests and earlier comparisons need re-reading with that in mind. Refs flare-edge#160 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MVGTC78dgCGfRANNKjoPea
The Kernel Patch Series
The delta that forward-ports the vendor Rockchip 5.10.160 RV1106 support onto a
pristine upstream linux-6.18.46, as a reviewable, subsystem-split series. Every
patch applies cleanly onto pristine 6.18.46 (git apply --check), and the whole set
reproduces the 223-file / ~136K-line delta that boots and is hardware-verified on
warden-c8a3 (see ../kernel/rv1106-enablement/).
Build it with ../build/build-kernel.sh (fetch pristine -> apply these -> configure
with ../build/warden_defconfig -> zImage + rv1106-warden.dtb).
The Series
| Patch | Scope |
|---|---|
05-build-wiring.patch |
top-level drivers/{Kconfig,Makefile} (wire in rknpu) |
10-clk-rv1106.patch |
CRU clock driver (clk-rv1106.c, reuses rv1126 data) |
15-pinctrl.patch |
pinctrl-rockchip RV1106 iomux |
20-arch-dts-bindings.patch |
arch/arm DTs (rv1106.dtsi, rv1106-warden.dts, pinctrl), mach, configs, include/dt-bindings |
25-usb-phy.patch |
inno-usb2 phy |
30-drm-vop-panel-rgb.patch |
VOP (rgb_dclk_pol=0 + WIN1 scanout), panel-simple bus-format, rockchip_rgb |
35-mailbox-hpmcu.patch |
rockchip-mailbox (rv1106 num_chans=1) |
40-pvtm-soc.patch |
PVTM (core+pmu) + include/soc/rockchip/pvtm.h |
45-npu-rknpu.patch |
open GPL rknpu 0.9.2 driver + rknpu_ioctl.h uapi |
50-rga.patch |
RGA 2D (rga3) + drivers/video wiring |
60-wifi-aic8800.patch |
out-of-tree AIC8800 wifi/BT (the 88.5K-line vendor blob) |
70-audio-codec.patch |
rv1106_codec + I2S wiring |
80-misc-thermal-rtc-adc.patch |
tsadc, rtc-rockchip, saradc, trng, otp, gmac, goodix touch |
License
Everything in this directory is a derivative work of the Linux kernel and of GPL-2.0 vendor kernel code: GPL-2.0-only (or the per-file SPDX identifier where one is present), the same license the whole repository carries.
Provenance & regeneration
Baseline: linux-6.18.46 from kernel.org (build/linux-6.18.46.tar.xz.sha256
pins the tarball). The series was generated by overlaying the hardware-verified
source tree onto pristine (build artifacts excluded) and splitting git diff by
subsystem. Licensing/origin of each block is tracked in
../kernel/rv1106-enablement/PROVENANCE.md.
Whitespace: 60-wifi-aic8800.patch carries the vendor blob's trailing-whitespace
verbatim; git apply --whitespace=nowarn (the build wrapper) accepts it. Do not
re-flow vendor code; it must stay diffable against future vendor drops.