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authorRafael J. Wysocki <rjw@sisk.pl>2012-03-26 23:26:10 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-04-02 10:32:10 -0700
commit14dbd9a0e642ff89604ee177cd08c7809b323f1f (patch)
treedb444cdf1c54a70a1a2649a02beb523dd91c8832
parent166a1687a4d1ad2fa237452355a5ec018dc68cc5 (diff)
PM / shmobile: Make TMU driver use pm_genpd_dev_always_on()
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 <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>
-rw-r--r--arch/arm/mach-shmobile/setup-sh7372.c2
-rw-r--r--drivers/clocksource/sh_tmu.c4
2 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c
index a83cf51fc099..cccf91b8fae1 100644
--- a/arch/arm/mach-shmobile/setup-sh7372.c
+++ b/arch/arm/mach-shmobile/setup-sh7372.c
@@ -1043,6 +1043,8 @@ void __init sh7372_add_standard_devices(void)
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)
diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 079e96ad44e8..97f54b634be4 100644
--- 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 platform_device *pdev)
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;