These notifiers can be used to isolate non-cpu specific PM
code from CPU idle code.
To start with, we can already leverage VFP handlers using notifier
chain for low power idle code. So use them.
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
Cc: Kevin Hilman <khilman@xxxxxx>
---
arch/arm/mach-omap2/cpuidle34xx.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 4bf6e6e..1112519 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -24,6 +24,7 @@
#include <linux/sched.h>
#include <linux/cpuidle.h>
+#include <linux/cpu_pm.h>
#include <plat/prcm.h>
#include <plat/irqs.h>
@@ -118,9 +119,15 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle);
}
+ if (mpu_state == PWRDM_POWER_OFF)
+ cpu_pm_enter();
+
/* Execute ARM wfi */
omap_sram_idle();
+ if (pwrdm_read_prev_pwrst(mpu_pd) == PWRDM_POWER_OFF)
+ cpu_pm_exit();
+
/* Re-allow idle for C1 */
if (state == &dev->states[0]) {
pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle);
--
1.7.4.1
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