Commit efa677fb authored by Simon Glass's avatar Simon Glass
Browse files

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: default avatarSimon Glass <sjg@chromium.org>
parent 32ec1598
......@@ -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;
......
......@@ -433,6 +433,18 @@ int gpio_request_list_by_name(struct udevice *dev, const char *list_name,
struct gpio_desc *desc_list, int max_count,
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
*
......
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