diff options
| author | Marek Vasut | 2018-06-14 13:32:10 +0200 |
|---|---|---|
| committer | Marek Vasut | 2018-06-14 13:36:33 +0200 |
| commit | e1ccb2c34c9fe5b2c9fabbff590b9722431edb24 (patch) | |
| tree | 455a315ec53b0de5e9a30eee06ee17cffaf7517b | |
| parent | acaee30608ce203289a180d664b7f0abb2e64ee7 (diff) | |
dts: gpio: Sync header with Linux 4.17
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>
| -rw-r--r-- | include/dt-bindings/gpio/gpio.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/dt-bindings/gpio/gpio.h b/include/dt-bindings/gpio/gpio.h index e6b1e0a808a..2cc10ae4bbb 100644 --- a/include/dt-bindings/gpio/gpio.h +++ b/include/dt-bindings/gpio/gpio.h @@ -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 |