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When state->clockid is configured to a hardware PTP clock device (e.g., /dev/ptp0) instead of CLOCK_REALTIME, ptp_adjtime() previously passed only the measured frequency drift (-ppb) to clock_adjtime(), ignoring the residual phase offset (delta_ns / adjustment_ns). As a result, while the hardware counter tracked frequency, its phase was never pulled into alignment with the master clock. Convert delta_ns (which combines frequency drift and current phase error clamped to max_adjust_ns) to ppb over CONFIG_CLOCK_ADJTIME_PERIOD_MS, acting as a proportional-integral (PI) phase servo. This drives the hardware clock to phase lock with the master via POSIX clock_adjtime() using ADJ_FREQUENCY without requiring proprietary ioctl calls. Assisted-by: Claude:claude-sonnet-5 Assisted-by: Gemini:gemini-3.8-flash-medium Signed-off-by: Daniel P. Carvalho <danieloak@gmail.com> |
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| .. | ||
| CMakeLists.txt | ||
| Kconfig | ||
| Make.defs | ||
| Makefile | ||
| ptpd.c | ||
| ptpv2.h | ||