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authorRafael J. Wysocki <rjw@sisk.pl>2012-03-13 22:40:14 +0100
committerRafael J. Wysocki <rjw@sisk.pl>2012-03-16 21:45:26 +0100
commit57d13370cfaf6017c68981e66ff5b3bf20a2705c (patch)
tree711ab528fbe521c77fb3c0128d69cf3471a35b11 /drivers/clocksource/sh_mtu2.c
parent615a445f7f8a077c145e737864ae59a4d8717882 (diff)
downloadop-kernel-dev-57d13370cfaf6017c68981e66ff5b3bf20a2705c.zip
op-kernel-dev-57d13370cfaf6017c68981e66ff5b3bf20a2705c.tar.gz
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
Diffstat (limited to 'drivers/clocksource/sh_mtu2.c')
-rw-r--r--drivers/clocksource/sh_mtu2.c4
1 files changed, 4 insertions, 0 deletions
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 @@ static int __devinit sh_mtu2_probe(struct platform_device *pdev)
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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