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| author | Simon Glass <sjg@chromium.org> | 2012-06-13 06:19:37 +0000 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2012-09-21 21:11:25 +0200 |
| commit | 1bbd28d21518e3118e0a2d1da87084b6846e5b32 (patch) | |
| tree | a74a4265a5df0e16b272fc37bdbc452afd032553 | |
| parent | 3ab270d5df7ae7bf8d7b5d225ab1abb37297d77e (diff) | |
| download | u-boot-imx-1bbd28d21518e3118e0a2d1da87084b6846e5b32.zip u-boot-imx-1bbd28d21518e3118e0a2d1da87084b6846e5b32.tar.gz u-boot-imx-1bbd28d21518e3118e0a2d1da87084b6846e5b32.tar.bz2 | |
Add gpio_request() to asm-generic header
This function should also be part of the GPIO API, so add it.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | include/asm-generic/gpio.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index c19e16c..23c9649 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -94,4 +94,13 @@ int gpio_get_value(unsigned gpio); */ int gpio_set_value(unsigned gpio, int value); +/** + * Request a gpio. This should be called before any of the other functions + * are used on this gpio. + * + * @param gp GPIO number + * @param label User label for this GPIO + * @return 0 if ok, -1 on error + */ +int gpio_request(unsigned gpio, const char *label); #endif /* _ASM_GENERIC_GPIO_H_ */ |