b43: rfkill: use HI enabled bit for all devices

Devices which use LO enabled bit are covered by b43legacy
Signed-off-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/b43/rfkill.c

@@ -28,23 +28,8 @@
 /* Returns TRUE, if the radio is enabled in hardware. */
 bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
 {
-	if (dev->phy.rev >= 3 || dev->phy.type == B43_PHYTYPE_LP) {
-		if (!(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI)
-		      & B43_MMIO_RADIO_HWENABLED_HI_MASK))
-			return 1;
-	} else {
-		/* To prevent CPU fault on PPC, do not read a register
-		 * unless the interface is started; however, on resume
-		 * for hibernation, this routine is entered early. When
-		 * that happens, unconditionally return TRUE.
-		 */
-		if (b43_status(dev) < B43_STAT_STARTED)
-			return 1;
-		if (b43_read16(dev, B43_MMIO_RADIO_HWENABLED_LO)
-		    & B43_MMIO_RADIO_HWENABLED_LO_MASK)
-			return 1;
-	}
-	return 0;
+	return !(b43_read32(dev, B43_MMIO_RADIO_HWENABLED_HI)
+		& B43_MMIO_RADIO_HWENABLED_HI_MASK);
 }
 
 /* The poll callback for the hardware button. */