PM / shmobile: Make CMT driver use pm_genpd_dev_always_on()

Make the CMT 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

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index ca09bc421ddb..32fe9ef5cc5c 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -32,6 +32,7 @@
 #include <linux/sh_timer.h>
 #include <linux/slab.h>
 #include <linux/module.h>
+#include <linux/pm_domain.h>
 
 struct sh_cmt_priv {
         void __iomem *mapbase;
@@ -689,6 +690,9 @@ static int __devinit sh_cmt_probe(struct platform_device *pdev)
         struct sh_cmt_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;