The saradc -22 was regulator_get_voltage on a dummy vref (no vref-supply in
DT), not the clk divider. Added vcc_1v8 fixed 1.8V regulator + vref-supply
(matching the vendor 86-panel). iio:device0 now reads both channels
(in_voltage0_raw=1023, in_voltage1_raw=246) — the adc-keys path works.
Five drivers verified this run: wifi, TRNG, OTP, GMAC, SARADC.
adc/SARADC-FIX.md; DRIVER-PARITY updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
