From: robherring2@gmail.com (Rob Herring)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/6] cpuidle: calxeda: add cpu_pm_enter/exit calls
Date: Thu, 26 Sep 2013 21:24:50 -0500 [thread overview]
Message-ID: <1380248694-13388-3-git-send-email-robherring2@gmail.com> (raw)
In-Reply-To: <1380248694-13388-1-git-send-email-robherring2@gmail.com>
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 at 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
next prev parent reply other threads:[~2013-09-27 2:24 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-27 2:24 [PATCH v4 0/6] PSCI support for highbank Rob Herring
2013-09-27 2:24 ` [PATCH 1/6] cpuidle: calxeda: add support to use PSCI calls Rob Herring
2013-09-27 8:44 ` Daniel Lezcano
2013-09-27 2:24 ` Rob Herring [this message]
2013-09-27 8:45 ` [PATCH 2/6] cpuidle: calxeda: add cpu_pm_enter/exit calls Daniel Lezcano
2013-09-27 2:24 ` [PATCH 3/6] cpuidle: calxeda: add ecx-2000 support Rob Herring
2013-09-27 8:47 ` Daniel Lezcano
2013-09-27 12:14 ` Rob Herring
2013-09-27 2:24 ` [PATCH 4/6] ARM: PSCI: remove unnecessary include of arm-gic.h Rob Herring
2013-09-27 2:24 ` [PATCH 5/6] ARM: highbank: adapt to use ARM PSCI calls Rob Herring
2013-09-27 2:24 ` [PATCH 6/6] dts: calxeda: add ARM PSCI binding Rob Herring
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