Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* loongson-specific suspend support
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*
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* Copyright (C) 2009 Lemote Inc.
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* Author: Wu Zhangjin <wuzhangjin@gmail.com>
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*/
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#include <linux/suspend.h>
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#include <linux/pm.h>
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#include <asm/mipsregs.h>
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#include <loongson.h>
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asmlinkage void loongson_lefi_sleep(unsigned long sleep_addr);
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static int lefi_pm_enter(suspend_state_t state)
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{
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switch (state) {
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case PM_SUSPEND_MEM:
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pm_set_suspend_via_firmware();
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loongson_lefi_sleep(loongson_sysconf.suspend_addr);
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pm_set_resume_via_firmware();
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return 0;
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default:
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return -EINVAL;
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}
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}
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static int lefi_pm_valid_state(suspend_state_t state)
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{
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switch (state) {
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case PM_SUSPEND_MEM:
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return !!loongson_sysconf.suspend_addr;
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default:
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return 0;
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}
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}
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static const struct platform_suspend_ops lefi_pm_ops = {
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.valid = lefi_pm_valid_state,
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.enter = lefi_pm_enter,
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};
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static int __init loongson_pm_init(void)
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{
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if (loongson_sysconf.fw_interface == LOONGSON_LEFI)
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suspend_set_ops(&lefi_pm_ops);
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return 0;
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}
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arch_initcall(loongson_pm_init);
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