---

yaml --- r: 137374 b: refs/heads/master c: 28d27cf h: refs/heads/master v: v3
git-mirror · Feb 20, 2009 · c3cfe45 · c3cfe45
1 parent aff6635
commit c3cfe45
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Showing 3 changed files with 26 additions and 11 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 22fc1db12515e1b528570c547fd27e38df792f1f
+refs/heads/master: 28d27cf4ce8378180eda32aa7d8e778c9e72a54f
diff --git a/trunk/arch/arm/plat-orion/gpio.c b/trunk/arch/arm/plat-orion/gpio.c
@@ -19,7 +19,8 @@
 
 static DEFINE_SPINLOCK(gpio_lock);
 static const char *gpio_label[GPIO_MAX];  /* non null for allocated GPIOs */
-static unsigned long gpio_valid[BITS_TO_LONGS(GPIO_MAX)];
+static unsigned long gpio_valid_input[BITS_TO_LONGS(GPIO_MAX)];
+static unsigned long gpio_valid_output[BITS_TO_LONGS(GPIO_MAX)];
 
 static inline void __set_direction(unsigned pin, int input)
 {
@@ -53,7 +54,7 @@ int gpio_direction_input(unsigned pin)
 {
 	unsigned long flags;
 
-	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid_input)) {
 		pr_debug("%s: invalid GPIO %d\n", __func__, pin);
 		return -EINVAL;
 	}
@@ -83,7 +84,7 @@ int gpio_direction_output(unsigned pin, int value)
 	unsigned long flags;
 	u32 u;
 
-	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid_output)) {
 		pr_debug("%s: invalid GPIO %d\n", __func__, pin);
 		return -EINVAL;
 	}
@@ -161,7 +162,9 @@ int gpio_request(unsigned pin, const char *label)
 	unsigned long flags;
 	int ret;
 
-	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+	if (pin >= GPIO_MAX ||
+	    !(test_bit(pin, gpio_valid_input) ||
+	      test_bit(pin, gpio_valid_output))) {
 		pr_debug("%s: invalid GPIO %d\n", __func__, pin);
 		return -EINVAL;
 	}
@@ -183,7 +186,9 @@ EXPORT_SYMBOL(gpio_request);
 
 void gpio_free(unsigned pin)
 {
-	if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) {
+	if (pin >= GPIO_MAX ||
+	    !(test_bit(pin, gpio_valid_input) ||
+	      test_bit(pin, gpio_valid_output))) {
 		pr_debug("%s: invalid GPIO %d\n", __func__, pin);
 		return;
 	}
@@ -208,12 +213,18 @@ void __init orion_gpio_set_unused(unsigned pin)
 	__set_direction(pin, 0);
 }
 
-void __init orion_gpio_set_valid(unsigned pin, int valid)
+void __init orion_gpio_set_valid(unsigned pin, int mode)
 {
-	if (valid)
-		__set_bit(pin, gpio_valid);
+	if (mode == 1)
+		mode = GPIO_INPUT_OK | GPIO_OUTPUT_OK;
+	if (mode & GPIO_INPUT_OK)
+		__set_bit(pin, gpio_valid_input);
 	else
-		__clear_bit(pin, gpio_valid);
+		__clear_bit(pin, gpio_valid_input);
+	if (mode & GPIO_OUTPUT_OK)
+		__set_bit(pin, gpio_valid_output);
+	else
+		__clear_bit(pin, gpio_valid_output);
 }
 
 void orion_gpio_set_blink(unsigned pin, int blink)

diff --git a/trunk/arch/arm/plat-orion/include/plat/gpio.h b/trunk/arch/arm/plat-orion/include/plat/gpio.h
@@ -25,9 +25,13 @@ void gpio_set_value(unsigned pin, int value);
  * Orion-specific GPIO API extensions.
  */
 void orion_gpio_set_unused(unsigned pin);
-void orion_gpio_set_valid(unsigned pin, int valid);
 void orion_gpio_set_blink(unsigned pin, int blink);
 
+#define GPIO_BIDI_OK		(1 << 0)
+#define GPIO_INPUT_OK		(1 << 1)
+#define GPIO_OUTPUT_OK		(1 << 2)
+void orion_gpio_set_valid(unsigned pin, int mode);
+
 /*
  * GPIO interrupt handling.
  */