soc: msm_performance: limit max cpu frequencies for both clusters

* To decrease energy consumption, the max freq of all CPUs
  is limited to 1,344 / 1,536 GHz per cluster respectively.

drivers/soc/qcom/msm_performance.c

@@ -137,6 +137,9 @@ static struct task_struct *notify_thread;
 #define DEF_MULTI_EXIT_CYCLE	4
 #define LAST_LD_CHECK_TOL	(2 * USEC_PER_MSEC)
 
+#define CLUSTER_0_FREQ_CAP	1344000
+#define CLUSTER_1_FREQ_CAP	1536000
+
 /**************************sysfs start********************************/
 
 static int set_num_clusters(const char *buf, const struct kernel_param *kp)
@@ -1942,8 +1945,13 @@ static int __init msm_performance_init(void)
 	cpufreq_register_notifier(&perf_cpufreq_nb, CPUFREQ_POLICY_NOTIFIER);
 	cpufreq_register_notifier(&perf_govinfo_nb, CPUFREQ_GOVINFO_NOTIFIER);
 
-	for_each_present_cpu(cpu)
-		per_cpu(cpu_stats, cpu).max = UINT_MAX;
+	/* Cap max cpu freq individually for each cluster */
+	for_each_present_cpu(cpu) {
+		if (topology_physical_package_id(cpu) == 0)
+			per_cpu(cpu_stats, cpu).max = CLUSTER_0_FREQ_CAP;
+ 		else if (topology_physical_package_id(cpu) == 1)
+			per_cpu(cpu_stats, cpu).max = CLUSTER_1_FREQ_CAP;
+	}
 
 	register_cpu_notifier(&msm_performance_cpu_notifier);