blob: 087a2ebad2f8649e0ce597e712bf9bb73101e9b1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* 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 <soc.h>
#include "console.h"
#include "cros_version.h"
#include "system.h"
#if IS_ZEPHYR_VERSION(2, 6)
#include <pm/pm.h>
#elif IS_ZEPHYR_VERSION(2, 5)
#include <power/power.h>
#else
#error "Unsupported Zephyr version"
#endif
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 };
}
#if IS_ZEPHYR_VERSION(2, 5)
/* CROS PM device policy handler */
bool pm_policy_low_power_devices(enum pm_state state)
{
return pm_is_sleep_state(state);
}
#endif
|
