linux/arch/arm/mach-tango/pm.c
Marc Gonzalez d0f9f16788 ARM: tango: Improve ARCH_MULTIPLATFORM compatibility
Calling platform-specific code unconditionally blows up when running
an ARCH_MULTIPLATFORM kernel on a different platform. Don't do it.

Reported-by: Paolo Pisati <p.pisati@gmail.com>
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Acked-by: Pavel Machek <pavel@ucw.cz>
Cc: stable@vger.kernel.org # v4.8+
Fixes: a30eceb7a5 ("ARM: tango: add Suspend-to-RAM support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2019-01-30 11:45:10 +01:00

32 lines
625 B
C

// SPDX-License-Identifier: GPL-2.0
#include <linux/init.h>
#include <linux/suspend.h>
#include <asm/suspend.h>
#include "smc.h"
#include "pm.h"
static int tango_pm_powerdown(unsigned long arg)
{
tango_suspend(__pa_symbol(cpu_resume));
return -EIO; /* tango_suspend has failed */
}
static int tango_pm_enter(suspend_state_t state)
{
if (state == PM_SUSPEND_MEM)
return cpu_suspend(0, tango_pm_powerdown);
return -EINVAL;
}
static const struct platform_suspend_ops tango_pm_ops = {
.enter = tango_pm_enter,
.valid = suspend_valid_only_mem,
};
void __init tango_pm_init(void)
{
suspend_set_ops(&tango_pm_ops);
}