/* SPDX-License-Identifier: GPL-2.0 */ /* * 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 /* Bit 2 express Open drain or open source */ #define GPIO_LINE_OPEN_SOURCE 0 #define GPIO_LINE_OPEN_DRAIN 4 /* * Open Drain/Collector is the combination of single-ended open drain interface. * Open Source/Emitter is the combination of single-ended open source interface. */ #define GPIO_OPEN_DRAIN (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_DRAIN) #define GPIO_OPEN_SOURCE (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_SOURCE) /* Bit 3 express GPIO suspend/resume persistence */ #define GPIO_SLEEP_MAINTAIN_VALUE 0 #define GPIO_SLEEP_MAY_LOSE_VALUE 8 #endif
Name | Type | Size | Permission | Actions |
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gpio.h | File | 1.04 KB | 0644 |
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meson-gxbb-gpio.h | File | 3.19 KB | 0644 |
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meson-gxl-gpio.h | File | 2.71 KB | 0644 |
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meson8-gpio.h | File | 3.26 KB | 0644 |
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meson8b-gpio.h | File | 866 B | 0644 |
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tegra-gpio.h | File | 1.38 KB | 0644 |
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tegra186-gpio.h | File | 1.68 KB | 0644 |
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uniphier-gpio.h | File | 497 B | 0644 |
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