September 2025 (flipperdevices/u-boot) focused on a targeted MPFS GPIO bug fix to improve type-safety and reduce compile-time warnings. Implemented a change to the Mpfs_gpio driver by updating the mchp_gpio_get_value return type from bool to int and adding required casts in the probe path and device matching data to satisfy type expectations. This resolves build warnings, aligns with API conventions, and reduces maintenance burden for MPFS GPIO code. Impact includes lower risk of build failures on strict compilers, more stable GPIO behavior on MPFS targets, and smoother future GPIO enhancements. Demonstrates strong C/kernel-driver skills, attention to type-safety, and disciplined patch management.

July 2025 (2025-07) monthly summary for flipperdevices/u-boot. Delivered foundational PolarFire SoC GPIO and SPI subsystems to enable GPIO control and pave the way for BeagleV-Fire SD card integration. Key features delivered: PolarFire SoC GPIO and Core GPIO driver enabling GPIO across the PolarFire SoC family; PolarFire SoC coreqspi xfer function with byte-by-byte read/write support and SPI chip-select management. Major bug fixed: multi-block read garbage when four-byte mode was enabled, resolved via the new xfer path and CS handling. Impact: expands hardware support across PolarFire SoC, provides a concrete path for BeagleV-Fire SD card integration via GPIO chip selects, and improves SPI reliability for coreqspi operations. Technologies/skills demonstrated: C driver development, GPIO and SPI subsystems, coreqspi, low-level hardware interfaces, Git-based versioning and commits.