Currently omap3_cpuidle_update_states makes whole sale decision
on which C states to update based on enable_off_mode variable
Instead, achieve the same functionality by independently providing
mpu and core deepest states the system is allowed to achieve and
update the idle states accordingly.
Signed-off-by: Nishanth Menon <n...@ti.com>
---
arch/arm/mach-omap2/cpuidle34xx.c | 19 ++++++++++---------
arch/arm/mach-omap2/pm.h | 3 ++-
arch/arm/mach-omap2/pm34xx.c | 2 +-
3 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c
b/arch/arm/mach-omap2/cpuidle34xx.c
index 0d50b45..f80d3f6 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -293,25 +293,26 @@ select_state:
DEFINE_PER_CPU(struct cpuidle_device, omap3_idle_dev);
/**
- * omap3_cpuidle_update_states - Update the cpuidle states.
+ * omap3_cpuidle_update_states() - Update the cpuidle states
+ * @mpu_deepest_state: Enable states upto and including this for mpu domain
+ * @core_deepest_state: Enable states upto and including this for core
domain
*
- * Currently, this function toggles the validity of idle states based upon
- * the flag 'enable_off_mode'. When the flag is set all states are valid.
- * Else, states leading to OFF state set to be invalid.
+ * This goes through the list of states available and enables and disables the
+ * validity of C states based on deepest state that can be achieved for the
+ * variable domain
*/
-void omap3_cpuidle_update_states(void)
+void omap3_cpuidle_update_states(u32 mpu_deepest_state, u32 core_deepest_state)
{
int i;
for (i = OMAP3_STATE_C1; i < OMAP3_MAX_STATES; i++) {
struct omap3_processor_cx *cx = &omap3_power_states[i];
- if (enable_off_mode) {
+ if ((cx->mpu_state >= mpu_deepest_state) &&
+ (cx->core_state >= core_deepest_state)) {
cx->valid = 1;
} else {
- if ((cx->mpu_state == PWRDM_POWER_OFF) ||
- (cx->core_state == PWRDM_POWER_OFF))
- cx->valid = 0;
+ cx->valid = 0;
}
}
}
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 5e0bee9..92ef400 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -58,7 +58,8 @@ extern u32 sleep_while_idle;
#endif
#if defined(CONFIG_CPU_IDLE)
-extern void omap3_cpuidle_update_states(void);
+extern void omap3_cpuidle_update_states(u32 core_deepest_state,
+ u32 core_deepest_state);
#endif
#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 4ba7a06..21cd36e 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -928,7 +928,7 @@ void omap3_pm_off_mode_enable(int enable)
state = PWRDM_POWER_RET;
#ifdef CONFIG_CPU_IDLE
- omap3_cpuidle_update_states();
+ omap3_cpuidle_update_states(state, state);
#endif
list_for_each_entry(pwrst, &pwrst_list, node) {
--
1.6.3.3
--
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