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

hdeller · hdeller · commit 6ad6e15a9c46 · 2023-11-18T18:59:30.000+01:00
Firmware returns the physical address of the power switch, so need to use gsc_writel() instead of direct memory access. Fixes: d0c2194 ("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+
diff --git a/drivers/parisc/power.c b/drivers/parisc/power.c
@@ -176,7 +176,7 @@ 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;
 }

Original file line number	Diff line number	Diff line change
`@@ -176,7 +176,7 @@ static struct notifier_block parisc_panic_block = {`
`176`	`176`	`static int qemu_power_off(struct sys_off_data *data)`
`177`	`177`	`{`
`178`	`178`	`/* this turns the system off via SeaBIOS */`
`179`		`- (int )data->cb_data = 0;`
	`179`	`+ gsc_writel(0, (unsigned long) data->cb_data);`
`180`	`180`	`pdc_soft_power_button(1);`
`181`	`181`	`return NOTIFY_DONE;`
`182`	`182`	`}`