Orange Pi5 kernel

^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 2011 Calxeda, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <linux/cpu_pm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) #include <linux/psci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) #include <linux/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <uapi/linux/psci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #define HIGHBANK_SUSPEND_PARAM \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 	((0 << PSCI_0_2_POWER_STATE_ID_SHIFT) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	 (1 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	 (PSCI_POWER_STATE_TYPE_POWER_DOWN << PSCI_0_2_POWER_STATE_TYPE_SHIFT))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) static int highbank_suspend_finish(unsigned long val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 	return psci_ops.cpu_suspend(HIGHBANK_SUSPEND_PARAM, __pa(cpu_resume));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) static int highbank_pm_enter(suspend_state_t state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	cpu_pm_enter();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	cpu_cluster_pm_enter();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	cpu_suspend(0, highbank_suspend_finish);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) 	cpu_cluster_pm_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 	cpu_pm_exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) static const struct platform_suspend_ops highbank_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	.enter = highbank_pm_enter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 	.valid = suspend_valid_only_mem,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) void __init highbank_pm_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 	if (!psci_ops.cpu_suspend)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) 	suspend_set_ops(&highbank_pm_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }