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/* Copyright 2021 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <zephyr.h>
#include <pm/pm.h>
#include <soc.h>
#include "console.h"
#include "cros_version.h"
#include "system.h"
static const struct pm_state_info pm_min_residency[] =
PM_STATE_INFO_DT_ITEMS_LIST(DT_NODELABEL(cpu0));
/* CROS PM policy handler */
struct pm_state_info pm_policy_next_state(int32_t ticks)
{
/* Deep sleep is allowed and console is not in use. */
if (DEEP_SLEEP_ALLOWED != 0 && !npcx_power_console_is_in_use()) {
for (int i = ARRAY_SIZE(pm_min_residency) - 1; i >= 0; i--) {
/* Find suitable power state by residency time */
if (ticks == K_TICKS_FOREVER ||
ticks >= k_us_to_ticks_ceil32(
pm_min_residency[i]
.min_residency_us)) {
return pm_min_residency[i];
}
}
}
return (struct pm_state_info){ PM_STATE_ACTIVE, 0, 0 };
}
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