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>

diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c
index a83cf51fc09906a13018472b4f563baebaf7bcb5..cccf91b8fae196e56cf4770b078f0f08cda9b538 100644 (file)
--- 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 079e96ad44e875b34861126a7446004109df1f74..97f54b634be43234d820beb1661b0493bd79637f 100644 (file)
--- 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;