rt2x00: use wiphy rfkill interface

Remove the input_polldev from rt2x00 and replace it with
the rfkill interface offered by the wiphy structure. This
simplifies the entire rfkill handling in rt2x00 and allows
us to remove the CONFIG_RT2X00_LIB_RFKILL option and always
enables rfkill capabilities.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/rt2x00/rt2500usb.c b/drivers/net/wireless/rt2x00/rt2500usb.c
index 66daf68..795706d 100644
--- a/drivers/net/wireless/rt2x00/rt2500usb.c
+++ b/drivers/net/wireless/rt2x00/rt2500usb.c
@@ -277,7 +277,6 @@
 };
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 
-#ifdef CONFIG_RT2X00_LIB_RFKILL
 static int rt2500usb_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 {
 	u16 reg;
@@ -285,9 +284,6 @@
 	rt2500usb_register_read(rt2x00dev, MAC_CSR19, &reg);
 	return rt2x00_get_field32(reg, MAC_CSR19_BIT7);
 }
-#else
-#define rt2500usb_rfkill_poll	NULL
-#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
 #ifdef CONFIG_RT2X00_LIB_LEDS
 static void rt2500usb_brightness_set(struct led_classdev *led_cdev,
@@ -1601,10 +1597,8 @@
 	/*
 	 * Detect if this device has an hardware controlled radio.
 	 */
-#ifdef CONFIG_RT2X00_LIB_RFKILL
 	if (rt2x00_get_field16(eeprom, EEPROM_ANTENNA_HARDWARE_RADIO))
 		__set_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags);
-#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
 	/*
 	 * Check if the BBP tuning should be disabled.
@@ -1905,6 +1899,7 @@
 	.bss_info_changed	= rt2x00mac_bss_info_changed,
 	.conf_tx		= rt2x00mac_conf_tx,
 	.get_tx_stats		= rt2x00mac_get_tx_stats,
+	.rfkill_poll		= rt2x00mac_rfkill_poll,
 };
 
 static const struct rt2x00lib_ops rt2500usb_rt2x00_ops = {