1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/cpufreq/dummy-cpufreq.c b/drivers/cpufreq/dummy-cpufreq.c
new file mode 100644
index 000000000000..e614a27af11c
--- /dev/null
+++ b/drivers/cpufreq/dummy-cpufreq.c
@@ -0,0 +1,59 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Google, Inc.
+ */
+#include <linux/cpufreq.h>
+#include <linux/module.h>
+
+static struct cpufreq_frequency_table freq_table[] = {
+	{ .frequency = 1 },
+	{ .frequency = 2 },
+	{ .frequency = CPUFREQ_TABLE_END },
+};
+
+static int dummy_cpufreq_target_index(struct cpufreq_policy *policy,
+				   unsigned int index)
+{
+	return 0;
+}
+
+static int dummy_cpufreq_driver_init(struct cpufreq_policy *policy)
+{
+	return cpufreq_table_validate_and_show(policy, freq_table);
+}
+
+static unsigned int dummy_cpufreq_get(unsigned int cpu)
+{
+	return 1;
+}
+
+static int dummy_cpufreq_verify(struct cpufreq_policy *policy)
+{
+	return 0;
+}
+
+static struct cpufreq_driver dummy_cpufreq_driver = {
+	.name = "dummy",
+	.target_index = dummy_cpufreq_target_index,
+	.init = dummy_cpufreq_driver_init,
+	.get = dummy_cpufreq_get,
+	.verify = dummy_cpufreq_verify,
+	.attr = cpufreq_generic_attr,
+};
+
+static int __init dummy_cpufreq_init(void)
+{
+	return cpufreq_register_driver(&dummy_cpufreq_driver);
+}
+
+static void __exit dummy_cpufreq_exit(void)
+{
+	cpufreq_unregister_driver(&dummy_cpufreq_driver);
+}
+
+module_init(dummy_cpufreq_init);
+module_exit(dummy_cpufreq_exit);
+
+MODULE_AUTHOR("Connor O'Brien <connoro@google.com>");
+MODULE_DESCRIPTION("dummy cpufreq driver");
+MODULE_LICENSE("GPL");