evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

cpuidle: calxeda: add cpu_pm_enter/exit calls

Browse source 
Wnen powergating the core, we need to call cpu pm notifiers to save VFP
state (!SMP only) and resetting the breakpoint h/w.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org
This commit is contained in:
Rob Herring 2013-02-26 16:16:53 -06:00
parent 15c03dd485
commit 34a5eeb202
1 changed files with 4 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/cpuidle/cpuidle-calxeda.c
View file

@ -21,6 +21,7 @@
*/ */
#include <linux/cpuidle.h> #include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/init.h> #include <linux/init.h>
#include <linux/io.h> #include <linux/io.h>
#include <linux/of.h> #include <linux/of.h>
@ -66,8 +67,11 @@ static int calxeda_pwrdown_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index) int index)
{ {
cpu_pm_enter();
highbank_set_cpu_jump(smp_processor_id(), cpu_resume); highbank_set_cpu_jump(smp_processor_id(), cpu_resume);
cpu_suspend(0, calxeda_idle_finish); cpu_suspend(0, calxeda_idle_finish);
cpu_pm_exit();
return index; return index;
} }