- Create centralized sensor multiplexer node (vnd7050aj_mux) with shared configuration
- Consolidate ADC channel, GPIO pins, and reference voltage in single location
- Update sensor bindings to reference centralized mux via sensor-mux property
- Add channel-based sensor selection using mux-channel property (0-3)
- Refactor ADC sensor library to use centralized GPIO and channel control
- Update valve library to use new vnd7050aj_mux node reference
- Eliminate duplicate ADC/GPIO definitions between voltage and current sensors
- Ensure configuration consistency and prevent mismatched settings
Benefits:
- Single source of truth for VND7050AJ hardware configuration
- Impossible to have inconsistent GPIO/ADC settings between sensors
- Simplified maintenance and scalability for additional sensors
- Clean channel-based multiplexer selection interface
Introduces device tree bindings for custom ADC voltage and current sensors,
allowing for flexible configuration of sensor inputs and associated GPIOs.
This enables proper hardware abstraction for ADC measurements.
The example overlay file
has been removed as its content is now integrated or superseded by the new
binding definitions.
- Initialize RST pin as active to keep VND7050AJ out of reset state
- Clarify S0/S1 pins as output select pins with descriptive comments
- Add initialization logging to show configured max open/close times
- Ensure proper valve controller startup sequence
Eduard Iten