Worked on enhancing power management in the geerlingguy/linux repository by refining the Power Domain Governor to support latency-aware idle state selection. Focused on kernel development and embedded systems, the work involved updating device driver logic in C to ensure that deeper idle states are only entered when all CPUs’ latency requirements are satisfied. This approach prevented violations of latency constraints, as validated through hardware testing on the SM8750 platform. The changes improved power-performance trade-offs and reliability on arm64 systems, with increased test coverage and observability for governor decisions, resulting in safer transitions to deeper idle states without compromising performance.