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8c4300c227
Tested basic suspend/resume on a mx25pdk: $ echo enabled > /sys/class/tty/ttymxc0/power/wakeup $ echo mem > /sys/power/state Then press any key in the serial console and the system wakes up. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
38 lines
727 B
C
38 lines
727 B
C
/*
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* Copyright 2016 NXP Semiconductors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/suspend.h>
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#include <linux/io.h>
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static int imx25_suspend_enter(suspend_state_t state)
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{
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if (!IS_ENABLED(CONFIG_PM))
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return 0;
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switch (state) {
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case PM_SUSPEND_MEM:
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cpu_do_idle();
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static const struct platform_suspend_ops imx25_suspend_ops = {
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.enter = imx25_suspend_enter,
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.valid = suspend_valid_only_mem,
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};
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void __init imx25_pm_init(void)
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{
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suspend_set_ops(&imx25_suspend_ops);
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}
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