diff options
Diffstat (limited to 'arch/arm/mach-omap2/cpuidle34xx.c')
| -rw-r--r-- | arch/arm/mach-omap2/cpuidle34xx.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index 942bb4f19f9f..464cffde58fe 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -25,15 +25,16 @@ #include <linux/sched.h> #include <linux/cpuidle.h> #include <linux/export.h> +#include <linux/cpu_pm.h> #include <plat/prcm.h> #include <plat/irqs.h> #include "powerdomain.h" #include "clockdomain.h" -#include <plat/serial.h> #include "pm.h" #include "control.h" +#include "common.h" #ifdef CONFIG_CPU_IDLE @@ -123,9 +124,23 @@ static int omap3_enter_idle(struct cpuidle_device *dev, pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle); } + /* + * Call idle CPU PM enter notifier chain so that + * VFP context is saved. + */ + if (mpu_state == PWRDM_POWER_OFF) + cpu_pm_enter(); + /* Execute ARM wfi */ omap_sram_idle(); + /* + * Call idle CPU PM enter notifier chain to restore + * VFP context. + */ + if (pwrdm_read_prev_pwrst(mpu_pd) == PWRDM_POWER_OFF) + cpu_pm_exit(); + /* Re-allow idle for C1 */ if (index == 0) { pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle); @@ -244,11 +259,6 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev, struct omap3_idle_statedata *cx; int ret; - if (!omap3_can_sleep()) { - new_state_idx = drv->safe_state_index; - goto select_state; - } - /* * Prevent idle completely if CAM is active. * CAM does not have wakeup capability in OMAP3. |