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/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 435f945..d8035e3 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -199,7 +199,6 @@
 };
 #endif /* CONFIG_RT2X00_LIB_DEBUGFS */
 
-#ifdef CONFIG_RT2X00_LIB_RFKILL
 static int rt2400pci_rfkill_poll(struct rt2x00_dev *rt2x00dev)
 {
 	u32 reg;
@@ -207,9 +206,6 @@
 	rt2x00pci_register_read(rt2x00dev, GPIOCSR, &reg);
 	return rt2x00_get_field32(reg, GPIOCSR_BIT0);
 }
-#else
-#define rt2400pci_rfkill_poll	NULL
-#endif /* CONFIG_RT2X00_LIB_RFKILL */
 
 #ifdef CONFIG_RT2X00_LIB_LEDS
 static void rt2400pci_brightness_set(struct led_classdev *led_cdev,
@@ -1391,10 +1387,8 @@
 	/*
 	 * 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 enabled.
@@ -1573,6 +1567,7 @@
 	.get_tx_stats		= rt2x00mac_get_tx_stats,
 	.get_tsf		= rt2400pci_get_tsf,
 	.tx_last_beacon		= rt2400pci_tx_last_beacon,
+	.rfkill_poll		= rt2x00mac_rfkill_poll,
 };
 
 static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {