net:rfkill: add a gpio setup function into GPIO rfkill

Add a gpio setup function which gives a chance to set up
platform specific configuration such as pin multiplexing,
input/output direction at the runtime or booting time.

Signed-off-by: Sangwook Lee <sangwook.lee@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/rfkill-gpio.h b/include/linux/rfkill-gpio.h
index a175d0598033..4d09f6eab359 100644
--- a/include/linux/rfkill-gpio.h
+++ b/include/linux/rfkill-gpio.h
@@ -30,6 +30,8 @@
  * @reset_gpio:         GPIO which is used for reseting rfkill switch
  * @shutdown_gpio:      GPIO which is used for shutdown of rfkill switch
  * @power_clk_name:     [optional] name of clk to turn off while blocked
+ * @gpio_runtime_close: clean up platform specific gpio configuration
+ * @gpio_runtime_setup: set up platform specific gpio configuration
  */
 
 struct rfkill_gpio_platform_data {
@@ -38,6 +40,8 @@ struct rfkill_gpio_platform_data {
         int                     shutdown_gpio;
         const char              *power_clk_name;
         enum rfkill_type        type;
+        void    (*gpio_runtime_close)(struct platform_device *);
+        int     (*gpio_runtime_setup)(struct platform_device *);
 };
 
 #endif /* __RFKILL_GPIO_H */