Add gpio_request() to asm-generic header

This function should also be part of the GPIO API, so add it. Signed-off-by: Simon Glass <sjg@chromium.org>

Add gpio_request() to asm-generic header
This function should also be part of the GPIO API, so add it. Signed-off-by: Simon Glass <sjg@chromium.org>
Simon Glass · Anatolij Gustschin
1 parent 3ab270d5df
Showing 1 changed file with 9 additions and 0 deletions Side-by-side Diff
include/asm-generic/gpio.h
@@ -94,5 +94,14 @@
  */
 int gpio_set_value(unsigned gpio, int value);
  
+/**
+ * Request a gpio. This should be called before any of the other functions
+ * are used on this gpio.
+ *
+ * @param gp	GPIO number
+ * @param label	User label for this GPIO
+ * @return 0 if ok, -1 on error
+ */
+int gpio_request(unsigned gpio, const char *label);
 #endif	/* _ASM_GENERIC_GPIO_H_ */
...	...	@@ -94,5 +94,14 @@
94	94	*/
95	95	int gpio_set_value(unsigned gpio, int value);
96	96
	97	+/**
	98	+ * Request a gpio. This should be called before any of the other functions
	99	+ * are used on this gpio.
	100	+ *
	101	+ * @param gp GPIO number
	102	+ * @param label User label for this GPIO
	103	+ * @return 0 if ok, -1 on error
	104	+ */
	105	+int gpio_request(unsigned gpio, const char *label);
97	106	#endif /* _ASM_GENERIC_GPIO_H_ */