Messages in this thread Patch in this message | | | From | Rob Herring <> | Subject | [PATCH 2/6] cpuidle: calxeda: add cpu_pm_enter/exit calls | Date | Thu, 26 Sep 2013 21:24:50 -0500 |
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From: Rob Herring <rob.herring@calxeda.com>
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> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-pm@vger.kernel.org --- drivers/cpuidle/cpuidle-calxeda.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c index 01cfecf3..b04767a 100644 --- a/drivers/cpuidle/cpuidle-calxeda.c +++ b/drivers/cpuidle/cpuidle-calxeda.c @@ -21,6 +21,7 @@ */ #include <linux/cpuidle.h> +#include <linux/cpu_pm.h> #include <linux/init.h> #include <linux/of.h> #include <asm/cpuidle.h> @@ -39,7 +40,10 @@ static int calxeda_pwrdown_idle(struct cpuidle_device *dev, struct cpuidle_driver *drv, int index) { + cpu_pm_enter(); cpu_suspend(0, calxeda_idle_finish); + cpu_pm_exit(); + return index; } -- 1.8.1.2
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