drm/vmwgfx: Drop authentication requirement on UNREF ioctls

[linux-2.6-block.git] / drivers / gpio / gpiolib-acpi.c

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index ae0ffdce8bd57d4857b46cdc963f708923839982..716ee98431102d466e4be8114837322578cfe237 100644 (file)
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -12,11 +12,13 @@
 
 #include <linux/errno.h>
 #include <linux/gpio/consumer.h>
+#include <linux/gpio/driver.h>
 #include <linux/export.h>
-#include <linux/acpi_gpio.h>
 #include <linux/acpi.h>
 #include <linux/interrupt.h>
 
+#include "gpiolib.h"
+
 struct acpi_gpio_evt_pin {
        struct list_head node;
        acpi_handle *evt_handle;
@@ -94,7 +96,7 @@ static void acpi_gpio_evt_dh(acpi_handle handle, void *data)
  * gpio pins have acpi event methods and assigns interrupt handlers that calls
  * the acpi event methods for those pins.
  */
-void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
+static void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
 {
        struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL};
        struct acpi_resource *res;
@@ -192,7 +194,6 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
                                irq);
        }
 }
-EXPORT_SYMBOL(acpi_gpiochip_request_interrupts);
 
 /**
  * acpi_gpiochip_free_interrupts() - Free GPIO _EVT ACPI event interrupts.
@@ -203,7 +204,7 @@ EXPORT_SYMBOL(acpi_gpiochip_request_interrupts);
  * The remaining ACPI event interrupts associated with the chip are freed
  * automatically.
  */
-void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
+static void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
 {
        acpi_handle handle;
        acpi_status status;
@@ -230,7 +231,6 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
        acpi_detach_data(handle, acpi_gpio_evt_dh);
        kfree(evt_pins);
 }
-EXPORT_SYMBOL(acpi_gpiochip_free_interrupts);
 
 struct acpi_gpio_lookup {
        struct acpi_gpio_info info;
@@ -307,6 +307,15 @@ struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
        if (lookup.desc && info)
                *info = lookup.info;
 
-       return lookup.desc ? lookup.desc : ERR_PTR(-ENODEV);
+       return lookup.desc ? lookup.desc : ERR_PTR(-ENOENT);
+}
+
+void acpi_gpiochip_add(struct gpio_chip *chip)
+{
+       acpi_gpiochip_request_interrupts(chip);
+}
+
+void acpi_gpiochip_remove(struct gpio_chip *chip)
+{
+       acpi_gpiochip_free_interrupts(chip);
 }
-EXPORT_SYMBOL_GPL(acpi_get_gpiod_by_index);