[ 131/175] PM / shmobile: Make MTU2 driver use pm_genpd_dev_always_on()

From: Greg KH
Date: Fri Mar 30 2012 - 17:44:29 EST

3.3-stable review patch. If anyone has any objections, please let me know.


From: Rafael J. Wysocki <rjw@xxxxxxx>

Commit 57d13370cfaf6017c68981e66ff5b3bf20a2705c upstream.

Make the MTU2 clocksource driver mark its device as "always on"
using pm_genpd_dev_always_on() to protect it from surprise power

Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Tested-by: Simon Horman <horms@xxxxxxxxxxxx>
Acked-by: Paul Mundt <lethal@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

drivers/clocksource/sh_mtu2.c | 4 ++++
1 file changed, 4 insertions(+)

--- 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 @@ static int __devinit sh_mtu2_probe(struc
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;

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