blob: 0595a20f54fca030da126316721706720be65d18 (
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
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
# 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.
description: Fan parent node
compatible: "named-fans"
child-binding:
description: Named fan's child node
properties:
label:
required: true
type: string
description:
Human-readable string describing the device (used as
device_get_binding() argument)
rpm_min:
required: true
type: int
description:
Minimum fan speed (in RPM) to keep turning
rpm_start:
required: true
type: int
description:
Fan speed (in RPM) to begin turning
rpm_max:
required: true
type: int
description:
Maximum fan speed (in RPM)
pwm:
type: phandle
required: true
description:
PWM channel to control the fan
tach:
type: phandle
required: false
description:
Tachometer to measure the fan speed
not_use_rpm_mode:
required: false
type: boolean
description:
Disable automatic RPM control using tachometer input
use_fast_start:
required: false
type: boolean
description:
Fan requires a higher duty cycle to start up than to keep
running
pgood_gpio:
required: false
type: phandle
description:
Active high input GPIO which signals the power is good
enable_gpio:
required: false
type: phandle
description:
Active high output GPIO to enable the power
|
