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Message-Id: <20120330194852.601114116@linuxfoundation.org>
Date: Fri, 30 Mar 2012 12:50:36 -0700
From: Greg KH <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc: torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
alan@...rguk.ukuu.org.uk, "Rafael J. Wysocki" <rjw@...k.pl>,
Simon Horman <horms@...ge.net.au>,
Paul Mundt <lethal@...ux-sh.org>
Subject: [ 131/175] PM / shmobile: Make MTU2 driver use pm_genpd_dev_always_on()
3.3-stable review patch. If anyone has any objections, please let me know.
------------------
From: Rafael J. Wysocki <rjw@...k.pl>
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
removals.
Signed-off-by: Rafael J. Wysocki <rjw@...k.pl>
Tested-by: Simon Horman <horms@...ge.net.au>
Acked-by: Paul Mundt <lethal@...ux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
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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