From e91d54535f8535c6de05044fa6f715a78f4320f8 Mon Sep 17 00:00:00 2001
From: Thomas Chou <thomas@wytron.com.tw>
Date: Fri, 24 Dec 2010 15:19:44 +0800
Subject: nios2: add gpio_free

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>

diff --git a/arch/nios2/include/asm/gpio.h b/arch/nios2/include/asm/gpio.h
index cff1dd9..36a7132 100644
--- a/arch/nios2/include/asm/gpio.h
+++ b/arch/nios2/include/asm/gpio.h
@@ -26,6 +26,11 @@ static inline int gpio_request(unsigned gpio, const char *label)
 	return 0;
 }
 
+static inline int gpio_free(unsigned gpio)
+{
+	return 0;
+}
+
 static inline int gpio_direction_input(unsigned gpio)
 {
 	writel(1, CONFIG_SYS_GPIO_BASE + (gpio << 2));
@@ -49,6 +54,7 @@ static inline void gpio_set_value(unsigned gpio, int value)
 }
 #else
 extern int gpio_request(unsigned gpio, const char *label);
+extern int gpio_free(unsigned gpio);
 extern int gpio_direction_input(unsigned gpio);
 extern int gpio_direction_output(unsigned gpio, int value);
 extern int gpio_get_value(unsigned gpio);
diff --git a/board/altera/nios2-generic/gpio.c b/board/altera/nios2-generic/gpio.c
index d449684..8c639ce 100644
--- a/board/altera/nios2-generic/gpio.c
+++ b/board/altera/nios2-generic/gpio.c
@@ -20,6 +20,11 @@ int gpio_request(unsigned gpio, const char *label)
 	return 0;
 }
 
+int gpio_free(unsigned gpio)
+{
+	return 0;
+}
+
 int gpio_direction_input(unsigned gpio)
 {
 	u32 mask = 1 << gpio;
-- 
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