March 2026 summary for nxp-upstream/zephyr: Delivered core DMA/EDMA enhancements, expanded hardware test coverage, and strengthened maintenance processes. No major bugs reported this month; focus was on feature delivery, test enablement, and collaboration. Key outcomes include enabling EDMA V4 memory-to-memory transfers without DMAMUX with a per-major-loop channel start to ensure complete data transfer, adding FRDM_MCXA153 board support to DMA test suites, and onboarding a new collaborator for the DMA and Input subsystems. These efforts improve data-transfer reliability, broaden hardware validation, and accelerate collaboration and maintenance.

Month 2026-01: End-to-end Touch Sensing Input (TSI) capability delivered across the Zephyr/NXP stack. Implemented clock control for TSI, added a periodic-scanning TSI driver, introduced device-tree binding and FRDM-MCXN947 board support, and integrated the TSI v6 driver into the MCUX SDK build system. This month focused on feature delivery with no major bug fixes, establishing a robust touch UI path and hardware-ready configuration for production builds.

December 2025 monthly summary for nrfconnect/sdk-zephyr: Implemented cross-version consistency and hardware validation improvements for MCUX EDMA and FRDM-MCXE31B DMA/UART testing. Key outcomes include driver unification for MCUX EDMA across versions, device-tree alignment and migration updates to simplify DMA maintenance, and expanded DMA/UART testing capabilities on FRDM-MCXE31B, enabling DMA-based LPUART2 and asynchronous UART testing overlays. These efforts reduce configuration drift, improve cross-platform reliability, and accelerate hardware validation and feature readiness.

In August 2025, delivered robust KPP input improvements across two repositories, enhancing reliability for multi-key detection and SDK compatibility. The work strengthens user interaction accuracy and reduces missed key presses in embedded applications.

July 2025: Delivered end-to-end NXP Keypad (KPP) support for the MIMXRT1180 EVK in nrfconnect/sdk-zephyr. Implemented KPP driver across input subsystem, integrated CCM clocking, added HAL support, device-tree bindings, and board enablement for CM33/CM7 cores. Augmented test coverage with a keypad input test. This work enhances keypad-based user input, improves system usability, and accelerates keypad-enabled deployments.