ARM: Switch to new sys-off handler API

Kernel now supports chained power-off handlers. Use
register_platform_power_off() that registers a platform level power-off
handler. Legacy pm_power_off() will be removed once all drivers and archs
are converted to the new sys-off API.

Signed-off-by: Andrew Davis <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Acked-by: Alexey Charkov <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>

Author: glneo

arch/arm/mach-highbank/highbank.c

@@ -143,7 +143,7 @@ static void __init highbank_init(void)
 	sregs_base = of_iomap(np, 0);
 	WARN_ON(!sregs_base);
 
-	pm_power_off = highbank_power_off;
+	register_platform_power_off(highbank_power_off);
 	highbank_pm_init();
 
 	bus_register_notifier(&platform_bus_type, &highbank_platform_nb);

arch/arm/mach-pxa/spitz.c

@@ -1096,7 +1096,7 @@ static void __init spitz_init(void)
 		software_node_register(&spitz_scoop_2_gpiochip_node);
 
 	init_gpio_reset(SPITZ_GPIO_ON_RESET, 1, 0);
-	pm_power_off = spitz_poweroff;
+	register_platform_power_off(spitz_poweroff);
 
 	PMCR = 0x00;
 

arch/arm/mach-sa1100/generic.c

@@ -298,7 +298,7 @@ static struct platform_device *sa11x0_devices[] __initdata = {
 static int __init sa1100_init(void)
 {
 	struct resource wdt_res = DEFINE_RES_MEM(0x90000000, 0x20);
-	pm_power_off = sa1100_power_off;
+	register_platform_power_off(sa1100_power_off);
 
 	regulator_has_full_constraints();
 

arch/arm/mach-vt8500/vt8500.c

@@ -141,7 +141,7 @@ static void __init vt8500_init(void)
 			pr_err("%s:ioremap(power_off) failed\n", __func__);
 	}
 	if (pmc_base)
-		pm_power_off = &vt8500_power_off;
+		register_platform_power_off(vt8500_power_off);
 	else
 		pr_err("%s: PMC Hibernation register could not be remapped, not enabling power off!\n", __func__);
 }

arch/arm/xen/enlighten.c

@@ -541,7 +541,7 @@ static int __init xen_late_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
-	pm_power_off = xen_power_off;
+	register_platform_power_off(xen_power_off);
 	register_restart_handler(&xen_restart_nb);
 	if (!xen_initial_domain()) {
 		struct timespec64 ts;