1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/power/reset 4 $id: http://devicetree.org/schemas/power/reset/atmel,sama5d2-shdwc.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Microchip AT91 SAMA5D2 SHDWC Shutdown C 7 title: Microchip AT91 SAMA5D2 SHDWC Shutdown Controller
8 8
9 maintainers: 9 maintainers:
10 - Claudiu Beznea <claudiu.beznea@microchip.co 10 - Claudiu Beznea <claudiu.beznea@microchip.com>
11 11
12 description: | 12 description: |
13 Microchip AT91 SHDWC shutdown controller con 13 Microchip AT91 SHDWC shutdown controller controls the power supplies VDDIO
14 and VDDCORE and the wake-up detection on deb 14 and VDDCORE and the wake-up detection on debounced input lines.
15 15
16 properties: 16 properties:
17 compatible: 17 compatible:
18 oneOf: 18 oneOf:
19 - items: 19 - items:
20 - const: microchip,sama7g5-shdwc 20 - const: microchip,sama7g5-shdwc
21 - const: syscon 21 - const: syscon
22 - enum: 22 - enum:
23 - atmel,sama5d2-shdwc 23 - atmel,sama5d2-shdwc
24 - microchip,sam9x60-shdwc 24 - microchip,sam9x60-shdwc
25 25
26 reg: 26 reg:
27 maxItems: 1 27 maxItems: 1
28 28
29 clocks: 29 clocks:
30 maxItems: 1 30 maxItems: 1
31 31
32 "#address-cells": 32 "#address-cells":
33 const: 1 33 const: 1
34 34
35 "#size-cells": 35 "#size-cells":
36 const: 0 36 const: 0
37 37
38 debounce-delay-us: 38 debounce-delay-us:
39 description: 39 description:
40 Minimum wake-up inputs debouncer period 40 Minimum wake-up inputs debouncer period in microseconds. It is usually a
41 board-related property. 41 board-related property.
42 42
43 atmel,wakeup-rtc-timer: 43 atmel,wakeup-rtc-timer:
44 description: enable real-time clock wake-u 44 description: enable real-time clock wake-up
45 type: boolean 45 type: boolean
46 46
47 atmel,wakeup-rtt-timer: 47 atmel,wakeup-rtt-timer:
48 description: enable real-time timer wake-u 48 description: enable real-time timer wake-up
49 type: boolean 49 type: boolean
50 50
51 patternProperties: 51 patternProperties:
52 "^input@[0-15]$": 52 "^input@[0-15]$":
53 description: 53 description:
54 Wake-up input nodes. These are usually d 54 Wake-up input nodes. These are usually described in the "board" part of
55 the Device Tree. Note also that input 0 55 the Device Tree. Note also that input 0 is linked to the wake-up pin and
56 is frequently used. 56 is frequently used.
57 type: object 57 type: object
58 properties: 58 properties:
59 reg: 59 reg:
60 description: contains the wake-up inpu 60 description: contains the wake-up input index
61 minimum: 0 61 minimum: 0
62 maximum: 15 62 maximum: 15
63 63
64 atmel,wakeup-active-high: 64 atmel,wakeup-active-high:
65 description: 65 description:
66 The corresponding wake-up input desc 66 The corresponding wake-up input described by the child forces the
67 wake-up of the core power supply on 67 wake-up of the core power supply on a high level. The default is to
68 be active low. 68 be active low.
69 type: boolean 69 type: boolean
70 70
71 required: 71 required:
72 - reg 72 - reg
73 73
74 additionalProperties: false 74 additionalProperties: false
75 75
76 required: 76 required:
77 - compatible 77 - compatible
78 - reg 78 - reg
79 - clocks 79 - clocks
80 80
81 allOf: 81 allOf:
82 - if: 82 - if:
83 properties: 83 properties:
84 compatible: 84 compatible:
85 contains: 85 contains:
86 const: atmel,sama5d2-shdwc 86 const: atmel,sama5d2-shdwc
87 then: 87 then:
88 properties: 88 properties:
89 atmel,wakeup-rtt-timer: false 89 atmel,wakeup-rtt-timer: false
90 90
91 additionalProperties: false 91 additionalProperties: false
92 92
93 examples: 93 examples:
94 - | 94 - |
95 shdwc: poweroff@f8048010 { 95 shdwc: poweroff@f8048010 {
96 compatible = "atmel,sama5d2-shdwc"; 96 compatible = "atmel,sama5d2-shdwc";
97 reg = <0xf8048010 0x10>; 97 reg = <0xf8048010 0x10>;
98 clocks = <&clk32k>; 98 clocks = <&clk32k>;
99 #address-cells = <1>; 99 #address-cells = <1>;
100 #size-cells = <0>; 100 #size-cells = <0>;
101 atmel,wakeup-rtc-timer; 101 atmel,wakeup-rtc-timer;
102 debounce-delay-us = <976>; 102 debounce-delay-us = <976>;
103 103
104 input@0 { 104 input@0 {
105 reg = <0>; 105 reg = <0>;
106 }; 106 };
107 107
108 input@1 { 108 input@1 {
109 reg = <1>; 109 reg = <1>;
110 atmel,wakeup-active-high; 110 atmel,wakeup-active-high;
111 }; 111 };
112 }; 112 };
113 113
114 ... 114 ...
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