January 2026 monthly summary for torvalds/linux: Delivered a focused bug fix improving DPLL lifecycle reliability by enforcing a single registration policy and preventing duplicate registrations. This reduces resource mismanagement and unregistration issues, with explicit error signaling to callers.

Month: 2025-10 — The linux-riscv/linux driver work focused on stabilizing the ZL3073x driver during firmware updates and improving resilience to hardware configuration edge cases. The changes reduce risk in firmware deployment, shorten provisioning cycles, and improve overall reliability of flash operations in production.

In Sep 2025, delivered a substantial set of zl3073x improvements and DPLL enhancements for the linux-riscv/linux repository, strengthening hardware interaction, flash/firmware workflows, and configurability while preserving normal driver operation during flashing. The work lays a solid foundation for future devlink-powered flash workflows and more robust DPLL monitoring.

Month: 2025-07. In geerlingguy/linux, delivered a focused set of DPLL (zl3073x) enhancements aimed at improving timing accuracy, observability, and reliability in timing-critical deployments. Key work includes esync configuration/get-set on input/output pins, phase offset monitoring across all inputs, phase adjustment via compensation registers, fractional frequency offset retrieval for input pins, and a build stability fix ensuring REGMAP is enabled when the zl3073x driver is active. These changes jointly reduce drift, enhance diagnostics, and improve deployment reliability, enabling tighter timing control and faster troubleshooting in production.