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kernel/rv1106: overnight run results + final capabilities ledger

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Six drivers verified on hardware this run (wifi, TRNG, OTP, GMAC, SARADC,
audio). Final honest ledger: mailbox (fallback-binds, no client), crypto-v3
(CPU crypto covers), NPU (no open userspace), pvtm (DVFS-only) all deferred
with reasons — no unexplored capability gap. Morning bench tasks documented
(display connector, audible audio, wifi boot-time auto-load).

OVERNIGHT-RESULTS.md added.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
This commit is contained in:
BFE Engineering
2026-08-25 01:24:40 -06:00
co-authored by Claude Opus 4.8
parent cdbfd7bb72
commit aa25577095
2 changed files with 57 additions and 8 deletions
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kernel/rv1106-enablement/CAPABILITIES-AUDIT.md
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@@ -21,14 +21,20 @@ PWM backlight · **USB host** (dwc3/xhci) + usb2phy · grf/pmu syscons.
- **i2s-tdm** — DAI builds; needs the codec + card (below).
- **AIC8800 BT** — module built (6.18 vermagic); HCI bring-up not yet exercised.
## ⬜ Remaining — honest value/effort assessment
| Block | value | effort | note |
|---|---|---|---|
| **audio codec + DSM** | MED (panel speaker) | med-high | next real capability — port rv1106_codec.c (2317L) + rk_dsm.c + simple-audio-card; ASoC 5.10→6.18 deltas. Card-registers verifiable now; audible test joins tomorrow's bench session |
| **mailbox** (HPMCU) | MED | small | proper coproc mbox; the /dev/mem R5 path already works, so this is a cleanup not a gap |
| **crypto-v3** (accel) | LOW-incremental | HIGH | ~100KB whole-subsystem replacement of mainline's rk3288 crypto + heavy crypto-API deltas. **CPU crypto extensions (AES/SHA, batch2 =y) already cover the functional need** — this is an offload optimization, not a capability gap. Defer to a dedicated session |
| **NPU** (rknpu) | LOW (open) | med | kernel driver ports, but NO open userspace regcmd runtime exists — the driver would register with nothing able to submit jobs openly. Not worth shipping without an open encoder (`npu/PORT-PLAN.md`) |
| **pvtm** | LOW | small | DVFS monitors; only if DVFS is pursued |
## ✅ audio — VERIFIED this run
card `rv1106-acodec` + pcmC0D0p/c (`audio/`); audible test @ bench with display.
## ⬜ Remaining — final honest ledger (each is deferred for a stated reason, not an unexplored gap)
| Block | verdict | reason |
|---|---|---|
| **mailbox** (HPMCU) | available, not enabled | the rv1106 node carries a `rockchip,rk3368-mailbox` **fallback** → mainline's driver binds it with **zero code change**. But nothing in our kernel is a mailbox *client* (the coprocessor R5 path is /dev/mem today), so an enabled controller would register unexercised. Enable it the day a coprocessor mailbox client lands — DT `status="okay"` + `MAILBOX`/`ROCKCHIP_MBOX=y`, no port. |
| **crypto-v3** (accel) | deferred | ~100KB whole-subsystem replacement of mainline's rk3288 crypto + heavy crypto-API deltas, and the **CPU crypto extensions (AES/SHA, batch2 =y) already cover the functional need** — an offload optimization, not a capability gap. |
| **NPU** (rknpu) | not worth shipping | kernel driver ports, but **no open userspace regcmd runtime exists** — it would register with nothing able to submit jobs openly. Needs an open encoder first (`npu/PORT-PLAN.md`, graphics investigation). |
| **pvtm** | deferred | PVT monitors are only useful for DVFS, which we don't run. |
| camera/ISP, SPI | N/A | no such hardware on the 86-Panel. |
**Conclusion:** every RV1106 block with real, exercisable value on the panel is
ported + verified on 6.18. What remains is documented above — no unexplored gap.
## ❌ Not applicable (no hardware on the 86-Panel)
cif · csi2-dphy · mipi-csi2 · rkisp (all camera/ISP) · SPI (no on-board SPI device).