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Diffstat (limited to 'kernel/arch/arm/mach-imx/cpuidle-imx5.c')
-rw-r--r--kernel/arch/arm/mach-imx/cpuidle-imx5.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-imx/cpuidle-imx5.c b/kernel/arch/arm/mach-imx/cpuidle-imx5.c
new file mode 100644
index 000000000..3feca526d
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/cpuidle-imx5.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *
+ * 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/cpuidle.h>
+#include <linux/module.h>
+#include <asm/system_misc.h>
+
+static int imx5_cpuidle_enter(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
+{
+ arm_pm_idle();
+ return index;
+}
+
+static struct cpuidle_driver imx5_cpuidle_driver = {
+ .name = "imx5_cpuidle",
+ .owner = THIS_MODULE,
+ .states[0] = {
+ .enter = imx5_cpuidle_enter,
+ .exit_latency = 2,
+ .target_residency = 1,
+ .name = "IMX5 SRPG",
+ .desc = "CPU state retained,powered off",
+ },
+ .state_count = 1,
+};
+
+int __init imx5_cpuidle_init(void)
+{
+ return cpuidle_register(&imx5_cpuidle_driver, NULL);
+}