From: Rafael J. Wysocki <
[email protected]>
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 <
[email protected]>
---
drivers/clocksource/sh_cmt.c | 4 ++++
1 file changed, 4 insertions(+)
Index: linux/drivers/clocksource/sh_cmt.c
===================================================================
--- linux.orig/drivers/clocksource/sh_cmt.c
+++ linux/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
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;
--
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