Merge git://git.denx.de/u-boot-dm

[oweals/u-boot.git] / include / asm-generic / gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index de91e57efcd672a4e61e06434a6d0c042a3c0b07..0af599f86df5bee53efa1745a833d386df6665a6 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -321,6 +321,19 @@ struct gpio_dev_priv {
  */
 const char *gpio_get_bank_info(struct udevice *dev, int *offset_count);
 
+/**
+ * dm_gpio_lookup_name() - Look up a named GPIO and return its description
+ *
+ * The name of a GPIO is typically its bank name followed by a number from 0.
+ * For example A0 is the first GPIO in bank A. Each bank is a separate driver
+ * model device.
+ *
+ * @name:      Name to look up
+ * @desc:      Returns description, on success
+ * @return 0 if OK, -ve on error
+ */
+int dm_gpio_lookup_name(const char *name, struct gpio_desc *desc);
+
 /**
  * gpio_lookup_name - Look up a GPIO name and return its details
  *
@@ -420,6 +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
  *