PM / shmobile: Make MTU2 driver use pm_genpd_dev_always_on()
Make the MTU2 clocksource driver mark its device as "always on"
using pm_genpd_dev_always_on() to protect it from surprise power
removals.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Tested-by: Simon Horman <horms@verge.net.au>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: stable@vger.kernel.org
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index db8d595..a2172f6 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -31,6 +31,7 @@
#include <linux/sh_timer.h>
#include <linux/slab.h>
#include <linux/module.h>
+#include <linux/pm_domain.h>
struct sh_mtu2_priv {
void __iomem *mapbase;
@@ -306,6 +307,9 @@
struct sh_mtu2_priv *p = platform_get_drvdata(pdev);
int ret;
+ if (!is_early_platform_device(pdev))
+ pm_genpd_dev_always_on(&pdev->dev, true);
+
if (p) {
dev_info(&pdev->dev, "kept as earlytimer\n");
return 0;