From: Rafael J. Wysocki <rjw@sisk.pl>
Date: Mon, 26 Mar 2012 21:26:53 +0000 (+0200)
Subject: PM / shmobile: Make CMT driver use pm_genpd_dev_always_on()
X-Git-Tag: v3.3.1~47
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77bba980b91a26a942d3d0395eab64ce7fdd5cd0;p=thirdparty%2Fkernel%2Fstable.git

PM / shmobile: Make CMT driver use pm_genpd_dev_always_on()

Commit 615a445f7f8a077c145e737864ae59a4d8717882 upstream.

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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index ca09bc421ddbc..32fe9ef5cc5c3 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;