diff options
| author | Simon Glass <sjg@chromium.org> | 2015-06-23 15:38:41 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-07-21 17:39:23 -0600 |
| commit | efa677fb481aec0888d3d37803643219d4ea57d1 (patch) | |
| tree | 1b84001c3eab9eff32b5c3a5d242eab08ff84493 | |
| parent | 32ec159844d7b76f199b07412dd054ad842bdd58 (diff) | |
| download | u-boot-efa677fb481aec0888d3d37803643219d4ea57d1.tar.gz | |
dm: gpio: Add dm_gpio_request() to manually request a GPIO
This function can be used for testing to manually request a GPIO for use,
without resorting to the legacy GPIO API.
Signed-off-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | drivers/gpio/gpio-uclass.c | 2 | ||||
| -rw-r--r-- | include/asm-generic/gpio.h | 12 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index c6fd5802f5..4efda311a4 100644 --- a/drivers/gpio/gpio-uclass.c +++ b/drivers/gpio/gpio-uclass.c @@ -127,7 +127,7 @@ static int gpio_find_and_xlate(struct gpio_desc *desc, return ops->xlate ? ops->xlate(desc->dev, desc, args) : 0; } -static int dm_gpio_request(struct gpio_desc *desc, const char *label) +int dm_gpio_request(struct gpio_desc *desc, const char *label) { struct udevice *dev = desc->dev; struct gpio_dev_priv *uc_priv; diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h index b1cf95c687..0af599f86d 100644 --- a/include/asm-generic/gpio.h +++ b/include/asm-generic/gpio.h @@ -434,6 +434,18 @@ int gpio_request_list_by_name(struct udevice *dev, const char *list_name, int flags); /** + * dm_gpio_request() - manually request a GPIO + * + * Note: This function should only be used for testing / debugging. Instead. + * use gpio_request_by_name() to pull GPIOs from the device tree. + * + * @desc: GPIO description of GPIO to request (see dm_gpio_lookup_name()) + * @label: Label to attach to the GPIO while claimed + * @return 0 if OK, -ve on error + */ +int dm_gpio_request(struct gpio_desc *desc, const char *label); + +/** * gpio_get_list_count() - Returns the number of GPIOs in a list * * Counts the GPIOs in a list. See gpio_request_by_name() for additional |