From: Simon Glass <sjg@chromium.org>
Date: Wed, 13 Jun 2012 06:19:37 +0000 (+0000)
Subject: Add gpio_request() to asm-generic header
X-Git-Tag: v2012.10-rc1~1^2~3
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=1bbd28d21518e3118e0a2d1da87084b6846e5b32;p=oweals%2Fu-boot.git

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>
---

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index c19e16cd21..23c9649403 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -94,4 +94,13 @@ int gpio_get_value(unsigned gpio);
  */
 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_ */