dm: Move the function for getting GPIO status into the uclass

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

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 7104454..693bb56 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -96,6 +96,24 @@ enum gpio_func_t {
 struct udevice;
 
 /**
+ * gpio_get_status() - get the current GPIO status as a string
+ *
+ * Obtain the current GPIO status as a string which can be presented to the
+ * user. A typical string is:
+ *
+ * "b4:  in: 1 [x] sdmmc_cd"
+ *
+ * which means this is GPIO bank b, offset 4, currently set to input, current
+ * value 1, [x] means that it is requested and the owner is 'sdmmc_cd'
+ *
+ * @dev:       Device to check
+ * @offset:    Offset of device GPIO to check
+ * @buf:       Place to put string
+ * @buffsize:  Size of string including \0
+ */
+int gpio_get_status(struct udevice *dev, int offset, char *buf, int buffsize);
+
+/**
  * gpio_get_function() - get the current function for a GPIO pin
  *
  * Note this returns GPIOF_UNUSED if the GPIO is not requested.