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Add the ARM NVIC PIC driver, no-MMU I/O mapping, built-in FDT support, and Cortex-M CPU hooks required by the native RT-Thread device model.
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Some GPIO should apply GPIO mode by pinctrl, add `pin_ctrl_gpio_request`
for GPIO driver to apply it auto.
Signed-off-by: GuEe-GUI <[email protected]>
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Signed-off-by: GuEe-GUI <[email protected]>
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1. There is only one GPIO device in System.
2. For Pin API input is pin number
3. Add sets pin debounce time API.
So we need a virtual pin for multi gpio chip.
Signed-off-by: GuEe-GUI <[email protected]>
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