init android origin source code

1 files changed, 63 insertions, 0 deletions

diff --git a/ANDROID_3.4.5/drivers/cpufreq/cpufreq_performance.c b/ANDROID_3.4.5/drivers/cpufreq/cpufreq_performance.c
new file mode 100644
index 00000000..f13a8a9a
--- /dev/null
+++ b/ANDROID_3.4.5/drivers/cpufreq/cpufreq_performance.c
@@ -0,0 +1,63 @@
+/*
+ *  linux/drivers/cpufreq/cpufreq_performance.c
+ *
+ *  Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/cpufreq.h>
+#include <linux/init.h>
+
+
+static int cpufreq_governor_performance(struct cpufreq_policy *policy,
+					unsigned int event)
+{
+	switch (event) {
+	case CPUFREQ_GOV_START:
+	case CPUFREQ_GOV_LIMITS:
+		pr_debug("setting to %u kHz because of event %u\n",
+						policy->max, event);
+		__cpufreq_driver_target(policy, policy->max,
+						CPUFREQ_RELATION_H);
+		break;
+	default:
+		break;
+	}
+	return 0;
+}
+
+#ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE_MODULE
+static
+#endif
+struct cpufreq_governor cpufreq_gov_performance = {
+	.name		= "performance",
+	.governor	= cpufreq_governor_performance,
+	.owner		= THIS_MODULE,
+};
+
+
+static int __init cpufreq_gov_performance_init(void)
+{
+	return cpufreq_register_governor(&cpufreq_gov_performance);
+}
+
+
+static void __exit cpufreq_gov_performance_exit(void)
+{
+	cpufreq_unregister_governor(&cpufreq_gov_performance);
+}
+
+
+MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
+MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
+MODULE_LICENSE("GPL");
+
+fs_initcall(cpufreq_gov_performance_init);
+module_exit(cpufreq_gov_performance_exit);