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OMAP3: cpuidle: Update statistics for correct state

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When 'enable_off_mode' is 0, the target power state for MPU
and CORE was locally changed to PWRDM_POWER_RET but, the
statistics are updated for idle state originally selected
by the governor.

This patch 'invalidates' the idle states that lead either of
MPU or Core to PWRDM_POWER_OFF state when 'enable_off_mode'
is '0'. The states are valid once 'enable_off_mode' is set
to '1'.

Added function next_valid_state() to check if current state
is valid; else get the next valid state. It is called from
omap3_enter_idle_bm().

Signed-off-by: Sanjeev Premi <premi@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
This commit is contained in:
Sanjeev Premi
2010-01-28 23:16:43 +05:30
committed by Kevin Hilman
parent 80c20d543d
commit 6af83b3861
3 changed files with 98 additions and 8 deletions
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4
arch/arm/mach-omap2/pm.h
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@@ -37,6 +37,10 @@ extern int omap2_pm_debug;
#define omap2_pm_debug 0
#endif
#if defined(CONFIG_CPU_IDLE)
extern void omap3_cpuidle_update_states(void);
#endif
#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
extern int pm_dbg_regset_save(int reg_set);