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author | Sascha Hauer <s.hauer@pengutronix.de> | 2021-04-15 14:01:50 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2021-04-15 14:01:50 +0200 |
commit | a9450309bb51ff3d7159db85b6b40be20eaba962 (patch) | |
tree | cb86068501d9c3ce153ae92e3fc7b6655831a0f3 /include | |
parent | 7d20416fa9a1d05838bc52b307d689cc13002506 (diff) | |
parent | b11b738ed1b1e05a20680451b9fae52530645acb (diff) | |
download | barebox-a9450309bb51ff3d7159db85b6b40be20eaba962.tar.gz barebox-a9450309bb51ff3d7159db85b6b40be20eaba962.tar.xz |
Merge branch 'for-next/gpio'
Diffstat (limited to 'include')
-rw-r--r-- | include/gpiod.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/gpiod.h b/include/gpiod.h new file mode 100644 index 0000000000..c8b2cd47a3 --- /dev/null +++ b/include/gpiod.h @@ -0,0 +1,26 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __GPIOD_H_ +#define __GPIOD_H_ + +#include <gpio.h> +#include <of_gpio.h> + +/** + * Optional flags that can be passed to one of gpiod_* to configure direction + * and output value. These values cannot be OR'd. + */ +enum gpiod_flags { + GPIOD_ASIS = 0, + GPIOD_IN = GPIOF_IN, + /* + * To change this later to a different logic level (i.e. taking + * active low into account), use gpio_direction_active() + */ + GPIOD_OUT_LOW = GPIOF_OUT_INIT_INACTIVE, + GPIOD_OUT_HIGH = GPIOF_OUT_INIT_ACTIVE, +}; + +/* returned gpio descriptor can be passed to any normal gpio_* function */ +int gpiod_get(struct device_d *dev, const char *_con_id, enum gpiod_flags flags); + +#endif |