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Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Linux/drivers/cpuidle/   (Open Source Betriebssystem Version 6.17.9©)  Datei vom 24.10.2025 mit Größe 1 kB image not shown  

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cpuidle-calxeda.c


products/Sources/formale Sprachen/C/Linux/drivers/cpuidle/cpuidle-calxeda.c

// SPDX-License-Identifier: GPL-2.0-only /* * Copyright 2012 Calxeda, Inc. * * Based on arch/arm/plat-mxc/cpuidle.c: #v3.7 * Copyright 2012 Freescale Semiconductor, Inc. * Copyright 2012 Linaro Ltd. * * Maintainer: Rob Herring */ #include #include #include #include #include #include #include #include #include #define CALXEDA_IDLE_PARAM \ ((0 << PSCI_0_2_POWER_STATE_ID_SHIFT) | \ (0 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | \ (PSCI_POWER_STATE_TYPE_POWER_DOWN << PSCI_0_2_POWER_STATE_TYPE_SHIFT)) static int calxeda_idle_finish(unsigned long val) { return psci_ops.cpu_suspend(CALXEDA_IDLE_PARAM, __pa(cpu_resume)); } static int calxeda_pwrdown_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { cpu_pm_enter(); cpu_suspend(0, calxeda_idle_finish); cpu_pm_exit(); return index; } static struct cpuidle_driver calxeda_idle_driver = { .name = "calxeda_idle", .states = { ARM_CPUIDLE_WFI_STATE, { .name = "PG", .desc = "Power Gate", .exit_latency = 30, .power_usage = 50, .target_residency = 200, .enter = calxeda_pwrdown_idle, }, }, .state_count = 2, }; static int calxeda_cpuidle_probe(struct platform_device *pdev) { return cpuidle_register(&calxeda_idle_driver, NULL); } static struct platform_driver calxeda_cpuidle_plat_driver = { .driver = { .name = "cpuidle-calxeda", }, .probe = calxeda_cpuidle_probe, }; builtin_platform_driver(calxeda_cpuidle_plat_driver);

                                                                                                                                                                                                                                                                                                                                                                                                     

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