msm: pm: Adjust for events with hard wakeups
Get the next event and setup a new timer to expire
earlier than the next event after accounting for the
latency of the low power state being entered. This
will ensure that the core is active to handle the event
when it arrives.
Change-Id: Ife3e165bc6b61e0109c692cf4675baef0f4290f0
Signed-off-by: Girish Mahadevan <girishm@codeaurora.org>
diff --git a/arch/arm/mach-msm/lpm_levels.c b/arch/arm/mach-msm/lpm_levels.c
index f7456ef..8218a42 100644
--- a/arch/arm/mach-msm/lpm_levels.c
+++ b/arch/arm/mach-msm/lpm_levels.c
@@ -92,8 +92,8 @@
}
static void *msm_lpm_lowest_limits(bool from_idle,
- enum msm_pm_sleep_mode sleep_mode, uint32_t latency_us,
- uint32_t sleep_us, uint32_t *power)
+ enum msm_pm_sleep_mode sleep_mode,
+ struct msm_pm_time_params *time_param, uint32_t *power)
{
unsigned int cpu = smp_processor_id();
struct msm_rpmrs_level *best_level = NULL;
@@ -114,20 +114,22 @@
if (sleep_mode != level->sleep_mode)
continue;
- if (latency_us < level->latency_us)
+ if (time_param->latency_us < level->latency_us)
continue;
- if (sleep_us <= 1) {
+ if (time_param->sleep_us <= 1) {
pwr = level->energy_overhead;
- } else if (sleep_us <= level->time_overhead_us) {
- pwr = level->energy_overhead / sleep_us;
- } else if ((sleep_us >> 10) > level->time_overhead_us) {
+ } else if (time_param->sleep_us <= level->time_overhead_us) {
+ pwr = level->energy_overhead / time_param->sleep_us;
+ } else if ((time_param->sleep_us >> 10)
+ > level->time_overhead_us) {
pwr = level->steady_state_power;
} else {
pwr = level->steady_state_power;
pwr -= (level->time_overhead_us *
- level->steady_state_power)/sleep_us;
- pwr += level->energy_overhead / sleep_us;
+ level->steady_state_power) /
+ time_param->sleep_us;
+ pwr += level->energy_overhead / time_param->sleep_us;
}
if (!best_level || best_level->rs_limits.power[cpu] >= pwr) {