From d0c219472980d15f5cbc5c8aec736848bda3f235 Mon Sep 17 00:00:00 2001 From: Helge Deller Date: Tue, 17 Oct 2023 22:19:53 +0200 Subject: parisc/power: Add power soft-off when running on qemu Signed-off-by: Helge Deller Cc: stable@vger.kernel.org # v6.0+ --- drivers/parisc/power.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'drivers/parisc') diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c index 6f5e5f0230d3..6ee0717e34ec 100644 --- a/drivers/parisc/power.c +++ b/drivers/parisc/power.c @@ -197,6 +197,14 @@ static struct notifier_block parisc_panic_block = { .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) { @@ -226,7 +234,13 @@ static int __init power_init(void) 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)) { printk(KERN_ERR DRIVER_NAME ": thread creation failed. Driver not loaded.\n"); pdc_soft_power_button(0); -- cgit v1.2.3