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dts: gpio: Sync header with Linux 4.17

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Sync the gpio.h header with Linux 4.17, which contains new macros.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut 2018-06-14 13:32:10 +02:00
parent acaee30608
commit e1ccb2c34c
1 changed files with 21 additions and 0 deletions
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21
include/dt-bindings/gpio/gpio.h
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@ -1,3 +1,4 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* This header provides constants for most GPIO bindings.
*
@ -9,7 +10,27 @@
#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 and reset persistence */
#define GPIO_PERSISTENT 0
#define GPIO_TRANSITORY 8
#endif