This is a note to let you know that I've just added the patch titled
PM / shmobile: Make TMU driver use pm_genpd_dev_always_on()
to the 3.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pm-shmobile-make-tmu-driver-use-pm_genpd_dev_always_on.patch
and it can be found in the queue-3.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 2ee619f9487c2acc1efdf2c78e68e2bd51b635fa Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <[email protected]>
Date: Tue, 13 Mar 2012 22:40:00 +0100
Subject: PM / shmobile: Make TMU driver use pm_genpd_dev_always_on()
From: "Rafael J. Wysocki" <[email protected]>
commit 2ee619f9487c2acc1efdf2c78e68e2bd51b635fa upstream.
Make the TMU clocksource driver mark its device as "always on"
using pm_genpd_dev_always_on() to protect it from surprise power
removals and make sh7372_add_standard_devices() add TMU devices on
sh7372 to the A4R power domain so that their "always on" flags
are taken into account as appropriate.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Tested-by: Simon Horman <[email protected]>
Acked-by: Paul Mundt <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/arm/mach-shmobile/setup-sh7372.c | 2 ++
drivers/clocksource/sh_tmu.c | 4 ++++
2 files changed, 6 insertions(+)
--- a/arch/arm/mach-shmobile/setup-sh7372.c
+++ b/arch/arm/mach-shmobile/setup-sh7372.c
@@ -1028,6 +1028,8 @@ void __init sh7372_add_standard_devices(
sh7372_add_device_to_domain(&sh7372_a4r, &veu2_device);
sh7372_add_device_to_domain(&sh7372_a4r, &veu3_device);
sh7372_add_device_to_domain(&sh7372_a4r, &jpu_device);
+ sh7372_add_device_to_domain(&sh7372_a4r, &tmu00_device);
+ sh7372_add_device_to_domain(&sh7372_a4r, &tmu01_device);
}
void __init sh7372_add_early_devices(void)
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.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_tmu_priv {
void __iomem *mapbase;
@@ -410,6 +411,9 @@ static int __devinit sh_tmu_probe(struct
struct sh_tmu_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;
Patches currently in stable-queue which might be from [email protected] are
queue-3.2/pm-shmobile-make-mtu2-driver-use-pm_genpd_dev_always_on.patch
queue-3.2/pm-domains-fix-handling-of-wakeup-devices-during-system-resume.patch
queue-3.2/pm-shmobile-make-cmt-driver-use-pm_genpd_dev_always_on.patch
queue-3.2/pm-shmobile-make-tmu-driver-use-pm_genpd_dev_always_on.patch
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