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 ---
Changes in v3: None Changes in v2: None
drivers/gpio/gpio-uclass.c | 2 +- include/asm-generic/gpio.h | 12 ++++++++++++ 2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-uclass.c b/drivers/gpio/gpio-uclass.c index c6fd580..4efda31 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 b1cf95c..0af599f 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