TX6 Release 2013-04-22

[karo-tx-uboot.git] / include / asm-generic / gpio.h

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index bfedbe44596aa31fb2266f7e052a63401f06d181..dceaddcb7c6e0e63358b02c9f61851d3c2d8dcbc 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -41,6 +41,18 @@
  * an error value of -1.
  */
 
+enum gpio_flags {
+       GPIOF_INPUT,
+       GPIOF_OUTPUT_INIT_LOW,
+       GPIOF_OUTPUT_INIT_HIGH,
+};
+
+struct gpio {
+       unsigned int gpio;
+       enum gpio_flags flags;
+       const char *label;
+};
+
 /**
  * Request a gpio. This should be called before any of the other functions
  * are used on this gpio.
@@ -94,4 +106,26 @@ int gpio_get_value(unsigned gpio);
  * @return 0 if ok, -1 on error
  */
 int gpio_set_value(unsigned gpio, int value);
+
+/**
+ * Request a GPIO and configure it
+ * @param gpios        pointer to array of gpio defs
+ * @param count        number of GPIOs to set up
+ */
+int gpio_request_one(unsigned gpio, enum gpio_flags flags, const char *label);
+
+/**
+ * Request a set of GPIOs and configure them
+ * @param gpios        pointer to array of gpio defs
+ * @param count        number of GPIOs to set up
+ */
+int gpio_request_array(const struct gpio *gpios, int count);
+
+/**
+ * Release a set of GPIOs
+ * @param gpios        pointer to array of gpio defs
+ * @param count        number of GPIOs to set up
+ */
+int gpio_free_array(const struct gpio *gpios, int count);
+
 #endif /* _ASM_GENERIC_GPIO_H_ */