🎉 PMU Communications Working - Test Release

Major Breakthrough: PMU Communications Established!

This test release marks a significant milestone in the i.MX93 Jaguar E-Ink board development with PMU communications now fully working.

🚀 Key Achievement

• PMU Device: MCXC143VFM Power Management Microcontroller
• Interface: /dev/ttyLP2 (LPUART2)
• Status: ✅ FULLY OPERATIONAL

🔧 Technical Fixes Applied

• Clock Configuration: Enhanced lpi2c3 with proper clock assignments
• DMA Resolution: Fixed SPI DMA setup errors through clock domain fixes
• Device Tree: Comprehensive LPUART power domain optimizations
• I2C3 Bus: Proper initialization with 24MHz clock rate

📋 Hardware Status

Component	Interface	Status
PMU Communications	/dev/ttyLP2	✅ Working
Console UART	/dev/ttyLP0	✅ Working
Bluetooth UART	/dev/ttyLP1	✅ Working
Clock Domains	Various	✅ Fixed
DMA Channels	EDMA1	✅ Configured

🎯 Impact

• Power Management: Can now send/receive commands to MCXC143VFM
• Battery Life: Critical step toward 5-year battery optimization
• System Stability: Resolved clock initialization race conditions
• Development: Platform ready for advanced power management features

📊 Build Details

• Target: imx93-jaguar-eink-lmp-2157
• Tag: meta-subscriber-overrides
• Kernel: Linux 6.1 with PCF2131 RTC support
• Platform: i.MX93 Jaguar E-Ink board

This release represents a major breakthrough in the power management architecture for the E-Ink signage platform! 🎉