Ken Van Hoeylandt
22 lines
851 B
YAML
22 lines
851 B
YAML
description: >
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Claims a GPIO pin and drives it to a fixed level for as long as the module is running, with
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no further runtime behavior. Useful for board-level power-enable pins that must be asserted
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before other devicetree devices try to use hardware gated by that pin - all devicetree
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devices are constructed and started during kernel_init(), which runs before the deprecated
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HAL's initBoot() hook. Declare a gpio-hog node before the dependent device(s) in the .dts
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source so it runs first.
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compatible: "tactility,gpio-hog"
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properties:
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pin:
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type: phandles
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required: true
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description: The GPIO pin to hog
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mode:
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type: int
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default: 0
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description: |
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Pin mode, see enum GpioHogMode in tactility/drivers/gpio_hog.h:
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0 = GPIO_HOG_MODE_OUTPUT_HIGH, 1 = GPIO_HOG_MODE_OUTPUT_LOW, 2 = GPIO_HOG_MODE_INPUT.
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