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- /*
- * This header provides constants for most GPIO bindings.
- *
- * Most GPIO bindings include a flags cell as part of the GPIO specifier.
- * In most cases, the format of the flags cell uses the standard values
- * defined in this header.
- */
- #ifndef _DT_BINDINGS_GPIO_GPIO_H
- #define _DT_BINDINGS_GPIO_GPIO_H
- /* Bit 0 express polarity */
- #define GPIO_ACTIVE_HIGH 0
- #define GPIO_ACTIVE_LOW 1
- /* Bit 1 express single-endedness */
- #define GPIO_PUSH_PULL 0
- #define GPIO_SINGLE_ENDED 2
- /*
- * Open Drain/Collector is the combination of single-ended active low,
- * Open Source/Emitter is the combination of single-ended active high.
- */
- #define GPIO_OPEN_DRAIN (GPIO_SINGLE_ENDED | GPIO_ACTIVE_LOW)
- #define GPIO_OPEN_SOURCE (GPIO_SINGLE_ENDED | GPIO_ACTIVE_HIGH)
- #endif
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