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parisc/power: Add power soft-off when running on qemu

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Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
This commit is contained in:
Helge Deller 2023-10-17 22:19:53 +02:00
parent 01fef82673
commit d0c2194729
1 changed files with 15 additions and 1 deletions
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16
drivers/parisc/power.c
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@ -197,6 +197,14 @@ static struct notifier_block parisc_panic_block = {
.priority = INT_MAX, .priority = INT_MAX,
}; };
/* qemu soft power-off function */
static int qemu_power_off(struct sys_off_data *data)
{
/* this turns the system off via SeaBIOS */
*(int *)data->cb_data = 0;
pdc_soft_power_button(1);
return NOTIFY_DONE;
}
static int __init power_init(void) static int __init power_init(void)
{ {
@ -226,7 +234,13 @@ static int __init power_init(void)
soft_power_reg); soft_power_reg);
} }
power_task = kthread_run(kpowerswd, (void*)soft_power_reg, KTHREAD_NAME); power_task = NULL;
if (running_on_qemu && soft_power_reg)
register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_DEFAULT,
qemu_power_off, (void *)soft_power_reg);
else
power_task = kthread_run(kpowerswd, (void*)soft_power_reg,
KTHREAD_NAME);
if (IS_ERR(power_task)) { if (IS_ERR(power_task)) {
printk(KERN_ERR DRIVER_NAME ": thread creation failed. Driver not loaded.\n"); printk(KERN_ERR DRIVER_NAME ": thread creation failed. Driver not loaded.\n");
pdc_soft_power_button(0); pdc_soft_power_button(0);