Merge branch 'cpuidle/3.20' of http://git.linaro.org/people/daniel.lezcano/linux into pm-cpuidle

Pull ARM cpuidle update for 3.20 from Daniel Lezcano.

* 'cpuidle/3.20' of http://git.linaro.org/people/daniel.lezcano/linux:
  drivers: cpuidle: Don't initialize big.LITTLE driver if MCPM is unavailable

drivers/cpuidle/cpuidle-big_little.c

@@ -182,6 +182,10 @@ static int __init bl_idle_init(void)
 	 */
 	if (!of_match_node(compatible_machine_match, root))
 		return -ENODEV;
+
+	if (!mcpm_is_available())
+		return -EUNATCH;
+
 	/*
 	 * For now the differentiation between little and big cores
 	 * is based on the part number. A7 cores are considered little