Lines Matching +full:psci +full:- +full:suspend +full:- +full:param

1 // SPDX-License-Identifier: GPL-2.0-only
3  * PSCI CPU idle driver.
9 #define pr_fmt(fmt) "CPUidle PSCI: " fmt
18 #include <linux/psci.h>
33 					   idx, state[idx - 1]);  in psci_enter_idle_state()
40 	 * PSCI idle states relies on architectural WFI to
54 	{ .compatible = "arm,idle-state",
61 	int err = of_property_read_u32(np, "arm,psci-suspend-param", state);  in psci_dt_parse_state_node()
64 		pr_warn("%pOF missing arm,psci-suspend-param property\n", np);  in psci_dt_parse_state_node()
69 		pr_warn("Invalid PSCI power state %#x\n", *state);  in psci_dt_parse_state_node()
70 		return -EINVAL;  in psci_dt_parse_state_node()
83 	while ((state_node = of_parse_phandle(cpu_node, "cpu-idle-states",  in psci_dt_cpu_init_idle()
90 		return -ENODEV;  in psci_dt_cpu_init_idle()
94 		return -ENOMEM;  in psci_dt_cpu_init_idle()
97 		state_node = of_parse_phandle(cpu_node, "cpu-idle-states", i);  in psci_dt_cpu_init_idle()
104 		pr_debug("psci-power-state %#x index %d\n", psci_states[i], i);  in psci_dt_cpu_init_idle()
107 	/* Idle states parsed correctly, initialize per-cpu pointer */  in psci_dt_cpu_init_idle()
122 	 * If the PSCI cpu_suspend function hook has not been initialized  in psci_cpu_init_idle()
126 		return -EOPNOTSUPP;  in psci_cpu_init_idle()
130 		return -ENODEV;  in psci_cpu_init_idle()
148 		return -ENODEV;  in psci_idle_init_cpu()
151 	 * Check whether the enable-method for the cpu is PSCI, fail  in psci_idle_init_cpu()
154 	enable_method = of_get_property(cpu_node, "enable-method", NULL);  in psci_idle_init_cpu()
155 	if (!enable_method || (strcmp(enable_method, "psci")))  in psci_idle_init_cpu()
156 		ret = -ENODEV;  in psci_idle_init_cpu()
164 		return -ENOMEM;  in psci_idle_init_cpu()
166 	drv->cpumask = (struct cpumask *)cpumask_of(cpu);  in psci_idle_init_cpu()
176 	 * default archictectural back-end already executes wfi  in psci_idle_init_cpu()
181 		ret = ret ? : -ENODEV;  in psci_idle_init_cpu()
186 	 * Initialize PSCI idle states.  in psci_idle_init_cpu()
190 		pr_err("CPU %d failed to PSCI idle\n", cpu);  in psci_idle_init_cpu()
206  * psci_idle_init - Initializes PSCI cpuidle driver
208  * Initializes PSCI cpuidle driver for all CPUs, if any CPU fails
227 	while (--cpu >= 0) {  in psci_idle_init()