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authorRafael J. Wysocki <rjw@sisk.pl>2011-08-25 15:34:12 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2011-08-25 15:34:12 +0200
commit4605ab653c1f9d7cc2dda8033de215c9cee325f4 (patch)
tree8f55aa3137973ce2a3ef0ed49c44304e148d50fe /arch/arm/mach-shmobile/pm-sh7372.c
parentef27bed1870dbd5fd363ff5ec51eebd5a695e277 (diff)
downloadlinux-4605ab653c1f9d7cc2dda8033de215c9cee325f4.tar.bz2
PM / Domains: Use power.sybsys_data to reduce overhead
Currently pm_genpd_runtime_resume() has to walk the list of devices from the device's PM domain to find the corresponding device list object containing the need_restore field to check if the driver's .runtime_resume() callback should be executed for the device. This is suboptimal and can be simplified by using power.sybsys_data to store device information used by the generic PM domains code. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Diffstat (limited to 'arch/arm/mach-shmobile/pm-sh7372.c')
-rw-r--r--arch/arm/mach-shmobile/pm-sh7372.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/arm/mach-shmobile/pm-sh7372.c b/arch/arm/mach-shmobile/pm-sh7372.c
index 54d4d86883c9..4aeca0adae56 100644
--- a/arch/arm/mach-shmobile/pm-sh7372.c
+++ b/arch/arm/mach-shmobile/pm-sh7372.c
@@ -114,11 +114,9 @@ void sh7372_add_device_to_domain(struct sh7372_pm_domain *sh7372_pd,
{
struct device *dev = &pdev->dev;
- if (!dev->power.subsys_data) {
- pm_clk_create(dev);
- pm_clk_add(dev, NULL);
- }
pm_genpd_add_device(&sh7372_pd->genpd, dev);
+ if (pm_clk_no_clocks(dev))
+ pm_clk_add(dev, NULL);
}
void sh7372_pm_add_subdomain(struct sh7372_pm_domain *sh7372_pd,