63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
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/*
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* Copyright (c) 2013-2015 TRUSTONIC LIMITED
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <linux/module.h>
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#include <linux/device.h>
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#include <linux/suspend.h>
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#include <linux/err.h>
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#include "public/mc_linux.h"
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#include "platform.h" /* MC_PM_RUNTIME */
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#include "debug.h"
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#include "scheduler.h" /* SWd suspend/resume commands */
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#include "pm.h"
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#ifdef MC_PM_RUNTIME
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static struct pm_context {
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struct notifier_block pm_notifier;
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} pm_ctx;
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static int mc_suspend_notifier(struct notifier_block *nb, unsigned long event,
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void *dummy)
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{
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switch (event) {
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case PM_SUSPEND_PREPARE:
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return mc_scheduler_suspend();
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case PM_POST_SUSPEND:
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return mc_scheduler_resume();
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}
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return 0;
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}
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/* CPI todo: inconsistent handling of ret in below 2 functions */
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int mc_pm_start(void)
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{
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int ret = 0;
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pm_ctx.pm_notifier.notifier_call = mc_suspend_notifier;
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ret = register_pm_notifier(&pm_ctx.pm_notifier);
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MCDRV_DBG_VERBOSE("done, ret = %d", ret);
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return ret;
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}
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void mc_pm_stop(void)
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{
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unregister_pm_notifier(&pm_ctx.pm_notifier);
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}
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#endif /* MC_PM_RUNTIME */
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