^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) 2013 ARM/Linaro
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Authors: Daniel Lezcano <daniel.lezcano@linaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Nicolas Pitre <nicolas.pitre@linaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Maintainer: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Maintainer: Daniel Lezcano <daniel.lezcano@linaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/cpuidle.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/cpu_pm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <asm/cpu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <asm/cputype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <asm/cpuidle.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <asm/mcpm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <asm/smp_plat.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <asm/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include "dt_idle_states.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) static int bl_enter_powerdown(struct cpuidle_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) struct cpuidle_driver *drv, int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * NB: Owing to current menu governor behaviour big and LITTLE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * index 1 states have to define exit_latency and target_residency for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * cluster state since, when all CPUs in a cluster hit it, the cluster
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * can be shutdown. This means that when a single CPU enters this state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * the exit_latency and target_residency values are somewhat overkill.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * There is no notion of cluster states in the menu governor, so CPUs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * have to define CPU states where possibly the cluster will be shutdown
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * depending on the state of other CPUs. idle states entry and exit happen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * at random times; however the cluster state provides target_residency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * values as if all CPUs in a cluster enter the state at once; this is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * somewhat optimistic and behaviour should be fixed either in the governor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * or in the MCPM back-ends.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * To make this driver 100% generic the number of states and the exit_latency
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * target_residency values must be obtained from device tree bindings.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * exit_latency: refers to the TC2 vexpress test chip and depends on the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * current cluster operating point. It is the time it takes to get the CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * up and running when the CPU is powered up on cluster wake-up from shutdown.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * Current values for big and LITTLE clusters are provided for clusters
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * running at default operating points.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * target_residency: it is the minimum amount of time the cluster has
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * to be down to break even in terms of power consumption. cluster
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * shutdown has inherent dynamic power costs (L2 writebacks to DRAM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * being the main factor) that depend on the current operating points.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * The current values for both clusters are provided for a CPU whose half
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * of L2 lines are dirty and require cleaning to DRAM, and takes into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * account leakage static power values related to the vexpress TC2 testchip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) static struct cpuidle_driver bl_idle_little_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .name = "little_idle",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) .states[0] = ARM_CPUIDLE_WFI_STATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) .states[1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) .enter = bl_enter_powerdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) .exit_latency = 700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) .target_residency = 2500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .flags = CPUIDLE_FLAG_TIMER_STOP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) .name = "C1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .desc = "ARM little-cluster power down",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .state_count = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) static const struct of_device_id bl_idle_state_match[] __initconst = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) { .compatible = "arm,idle-state",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .data = bl_enter_powerdown },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static struct cpuidle_driver bl_idle_big_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .name = "big_idle",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .states[0] = ARM_CPUIDLE_WFI_STATE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .states[1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .enter = bl_enter_powerdown,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .exit_latency = 500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .target_residency = 2000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .flags = CPUIDLE_FLAG_TIMER_STOP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .name = "C1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .desc = "ARM big-cluster power down",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .state_count = 2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * notrace prevents trace shims from getting inserted where they
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * should not. Global jumps and ldrex/strex must not be inserted
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * in power down sequences where caches and MMU may be turned off.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) static int notrace bl_powerdown_finisher(unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) /* MCPM works with HW CPU identifiers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) unsigned int mpidr = read_cpuid_mpidr();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) unsigned int cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) unsigned int cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) mcpm_set_entry_vector(cpu, cluster, cpu_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) mcpm_cpu_suspend();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) /* return value != 0 means failure */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * bl_enter_powerdown - Programs CPU to enter the specified state
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) * @dev: cpuidle device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) * @drv: The target state to be programmed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) * @idx: state index
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) * Called from the CPUidle framework to program the device to the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * specified target state selected by the governor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static int bl_enter_powerdown(struct cpuidle_device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) struct cpuidle_driver *drv, int idx)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) cpu_pm_enter();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) cpu_suspend(0, bl_powerdown_finisher);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) /* signals the MCPM core that CPU is out of low power state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) mcpm_cpu_powered_up();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) cpu_pm_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static int __init bl_idle_driver_init(struct cpuidle_driver *drv, int part_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) struct cpumask *cpumask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) int cpu;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) cpumask = kzalloc(cpumask_size(), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) if (!cpumask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) for_each_possible_cpu(cpu)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) if (smp_cpuid_part(cpu) == part_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) cpumask_set_cpu(cpu, cpumask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) drv->cpumask = cpumask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) static const struct of_device_id compatible_machine_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) { .compatible = "arm,vexpress,v2p-ca15_a7" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) { .compatible = "samsung,exynos5420" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) { .compatible = "samsung,exynos5800" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) static int __init bl_idle_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) struct device_node *root = of_find_node_by_path("/");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) const struct of_device_id *match_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (!root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) * Initialize the driver just for a compliant set of machines
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) match_id = of_match_node(compatible_machine_match, root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) of_node_put(root);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (!match_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (!mcpm_is_available())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return -EUNATCH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) * For now the differentiation between little and big cores
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) * is based on the part number. A7 cores are considered little
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * cores, A15 are considered big cores. This distinction may
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * evolve in the future with a more generic matching approach.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) ret = bl_idle_driver_init(&bl_idle_little_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ARM_CPU_PART_CORTEX_A7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) ret = bl_idle_driver_init(&bl_idle_big_driver, ARM_CPU_PART_CORTEX_A15);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) goto out_uninit_little;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) /* Start at index 1, index 0 standard WFI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) ret = dt_init_idle_driver(&bl_idle_big_driver, bl_idle_state_match, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) goto out_uninit_big;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /* Start at index 1, index 0 standard WFI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) ret = dt_init_idle_driver(&bl_idle_little_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) bl_idle_state_match, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) goto out_uninit_big;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) ret = cpuidle_register(&bl_idle_little_driver, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) goto out_uninit_big;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) ret = cpuidle_register(&bl_idle_big_driver, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) goto out_unregister_little;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) out_unregister_little:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) cpuidle_unregister(&bl_idle_little_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) out_uninit_big:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) kfree(bl_idle_big_driver.cpumask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) out_uninit_little:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) kfree(bl_idle_little_driver.cpumask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) device_initcall(bl_idle_init);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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