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

commit 6ad6e15a9c46b8f0932cd99724f26f3db4db1cdf upstream.

Firmware returns the physical address of the power switch,
so need to use gsc_writel() instead of direct memory access.

Fixes: d0c219472980 ("parisc/power: Add power soft-off when running on qemu")
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # v6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
index 6ee0717..332bcc0 100644 (file)
--- a/drivers/parisc/power.c
+++ b/drivers/parisc/power.c
@@ -201,7 +201,7 @@ static struct notifier_block parisc_panic_block = {
 static int qemu_power_off(struct sys_off_data *data)
 {
        /* this turns the system off via SeaBIOS */
-       *(int *)data->cb_data = 0;
+       gsc_writel(0, (unsigned long) data->cb_data);
        pdc_soft_power_button(1);
        return NOTIFY_DONE;
 }