Merge commit 'gpio-lw/devel' into spear-for-3.8

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

diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 2b84fc32fae2bf9f861104ebd8d8c0adc4d9006a..b6516f32280de4cf7e7f11f1daa46c3e32160de6 100644 (file)
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -57,6 +57,8 @@ struct device_node;
  *     enabling module power and clock; may sleep
  * @free: optional hook for chip-specific deactivation, such as
  *     disabling module power and clock; may sleep
+ * @get_direction: returns direction for signal "offset", 0=out, 1=in,
+ *     (same as GPIOF_DIR_XXX), or negative error
  * @direction_input: configures signal "offset" as input, or returns error
  * @get: returns value for signal "offset"; for output signals this
  *     returns either the value actually sensed, or zero
@@ -101,7 +103,8 @@ struct gpio_chip {
                                                unsigned offset);
        void                    (*free)(struct gpio_chip *chip,
                                                unsigned offset);
-
+       int                     (*get_direction)(struct gpio_chip *chip,
+                                               unsigned offset);
        int                     (*direction_input)(struct gpio_chip *chip,
                                                unsigned offset);
        int                     (*get)(struct gpio_chip *chip,