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cpuidle: calxeda: add cpu_pm_enter/exit calls

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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 <[email protected]>
Cc: "Rafael J. Wysocki" <[email protected]>
Acked-by: Daniel Lezcano <[email protected]>
Cc: [email protected]
This commit is contained in:
Rob Herring 2013-02-26 16:16:53 -06:00
commit 34a5eeb202
1 changed files with 4 additions and 0 deletions
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4
drivers/cpuidle/cpuidle-calxeda.c
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@ -21,6 +21,7 @@
*/
#include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/of.h>
@ -66,8 +67,11 @@ static int calxeda_pwrdown_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
cpu_pm_enter();
highbank_set_cpu_jump(smp_processor_id(), cpu_resume);
cpu_suspend(0, calxeda_idle_finish);
cpu_pm_exit();
return index;
}