xref: /openbmc/linux/arch/arm/mach-imx/cpuidle-imx5.c (revision 9a87ffc99ec8eb8d35eed7c4f816d75f5cc9662e)
1d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only
254a4644bSDaniel Lezcano /*
354a4644bSDaniel Lezcano  * Copyright (C) 2012 Freescale Semiconductor, Inc.
454a4644bSDaniel Lezcano  */
554a4644bSDaniel Lezcano 
654a4644bSDaniel Lezcano #include <linux/cpuidle.h>
754a4644bSDaniel Lezcano #include <linux/module.h>
854a4644bSDaniel Lezcano #include <asm/system_misc.h>
95ea2e8adSMarco Franchi #include "cpuidle.h"
1054a4644bSDaniel Lezcano 
imx5_cpuidle_enter(struct cpuidle_device * dev,struct cpuidle_driver * drv,int index)11*26388a7cSPeter Zijlstra static __cpuidle int imx5_cpuidle_enter(struct cpuidle_device *dev,
1254a4644bSDaniel Lezcano 					struct cpuidle_driver *drv, int index)
1354a4644bSDaniel Lezcano {
1454a4644bSDaniel Lezcano 	arm_pm_idle();
1554a4644bSDaniel Lezcano 	return index;
1654a4644bSDaniel Lezcano }
1754a4644bSDaniel Lezcano 
1854a4644bSDaniel Lezcano static struct cpuidle_driver imx5_cpuidle_driver = {
1954a4644bSDaniel Lezcano 	.name             = "imx5_cpuidle",
2054a4644bSDaniel Lezcano 	.owner            = THIS_MODULE,
2154a4644bSDaniel Lezcano 	.states[0] = {
2254a4644bSDaniel Lezcano 		.enter            = imx5_cpuidle_enter,
2354a4644bSDaniel Lezcano 		.exit_latency     = 2,
2454a4644bSDaniel Lezcano 		.target_residency = 1,
2554a4644bSDaniel Lezcano 		.name             = "IMX5 SRPG",
2654a4644bSDaniel Lezcano 		.desc             = "CPU state retained,powered off",
2754a4644bSDaniel Lezcano 	},
2854a4644bSDaniel Lezcano 	.state_count = 1,
2954a4644bSDaniel Lezcano };
3054a4644bSDaniel Lezcano 
imx5_cpuidle_init(void)3154a4644bSDaniel Lezcano int __init imx5_cpuidle_init(void)
3254a4644bSDaniel Lezcano {
3354a4644bSDaniel Lezcano 	return cpuidle_register(&imx5_cpuidle_driver, NULL);
3454a4644bSDaniel Lezcano }
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