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pm.c


products/Sources/formale Sprachen/C/Linux/arch/mips/loongson64/pm.c

// SPDX-License-Identifier: GPL-2.0-or-later /* * loongson-specific suspend support * * Copyright (C) 2009 Lemote Inc. * Author: Wu Zhangjin */ #include #include #include #include asmlinkage void loongson_lefi_sleep(unsigned long sleep_addr); static int lefi_pm_enter(suspend_state_t state) { switch (state) { case PM_SUSPEND_MEM: pm_set_suspend_via_firmware(); loongson_lefi_sleep(loongson_sysconf.suspend_addr); pm_set_resume_via_firmware(); return 0; default: return -EINVAL; } } static int lefi_pm_valid_state(suspend_state_t state) { switch (state) { case PM_SUSPEND_MEM: return !!loongson_sysconf.suspend_addr; default: return 0; } } static const struct platform_suspend_ops lefi_pm_ops = { .valid = lefi_pm_valid_state, .enter = lefi_pm_enter, }; static int __init loongson_pm_init(void) { if (loongson_sysconf.fw_interface == LOONGSON_LEFI) suspend_set_ops(&lefi_pm_ops); return 0; } arch_initcall(loongson_pm_init);