Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #include <asm/suspend.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #include "smc.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include "pm.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) static int tango_pm_powerdown(unsigned long arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	tango_suspend(__pa_symbol(cpu_resume));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	return -EIO; /* tango_suspend has failed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) static int tango_pm_enter(suspend_state_t state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	if (state == PM_SUSPEND_MEM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 		return cpu_suspend(0, tango_pm_powerdown);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static const struct platform_suspend_ops tango_pm_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	.enter = tango_pm_enter,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 	.valid = suspend_valid_only_mem,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) void __init tango_pm_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	suspend_set_ops(&tango_pm_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) }