diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2015-12-08 07:35:17 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2015-12-10 08:48:40 +0100 |
| commit | 6e6d9a2ff045f09d5a03e876becea5e6a1dabe90 (patch) | |
| tree | bcf5e71df4472e374d03cc15ca22b4f841d9c73d /dts/include/dt-bindings/gpio/gpio.h | |
| parent | 8e2fd5380a4fd7cee428513dc8eab068912b49f1 (diff) | |
| download | barebox-6e6d9a2ff045f09d5a03e876becea5e6a1dabe90.tar.gz barebox-6e6d9a2ff045f09d5a03e876becea5e6a1dabe90.tar.xz | |
dts: update to v4.4-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/include/dt-bindings/gpio/gpio.h')
| -rw-r--r-- | dts/include/dt-bindings/gpio/gpio.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/dts/include/dt-bindings/gpio/gpio.h b/dts/include/dt-bindings/gpio/gpio.h index e6b1e0a808..c673d2c87c 100644 --- a/dts/include/dt-bindings/gpio/gpio.h +++ b/dts/include/dt-bindings/gpio/gpio.h @@ -9,7 +9,19 @@ #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 + +/* + * Open Drain/Collector is the combination of single-ended active low, + * Open Source/Emitter is the combination of single-ended active high. + */ +#define GPIO_OPEN_DRAIN (GPIO_SINGLE_ENDED | GPIO_ACTIVE_LOW) +#define GPIO_OPEN_SOURCE (GPIO_SINGLE_ENDED | GPIO_ACTIVE_HIGH) + #endif |