tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/embedded-controller/huawei,gaokun3-ec.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Huawei Matebook E Go Embedded Controller
8
9maintainers:
10 - Pengyu Luo <mitltlatltl@gmail.com>
11
12description:
13 Different from other Qualcomm Snapdragon sc8180x and sc8280xp-based
14 machines, the Huawei Matebook E Go tablets use embedded controllers
15 while others use a system called PMIC GLink which handles battery,
16 UCSI, USB Type-C DP Alt Mode. In addition, Huawei's implementation
17 also handles additional features, such as charging thresholds, FN
18 lock, smart charging, tablet lid status, thermal sensors, and more.
19
20properties:
21 compatible:
22 enum:
23 - huawei,gaokun3-ec
24
25 reg:
26 const: 0x38
27
28 '#address-cells':
29 const: 1
30
31 '#size-cells':
32 const: 0
33
34 interrupts:
35 maxItems: 1
36
37patternProperties:
38 '^connector@[01]$':
39 $ref: /schemas/connector/usb-connector.yaml#
40
41 properties:
42 reg:
43 maxItems: 1
44
45required:
46 - compatible
47 - reg
48 - interrupts
49
50additionalProperties: false
51
52examples:
53 - |
54 #include <dt-bindings/interrupt-controller/irq.h>
55 i2c {
56 #address-cells = <1>;
57 #size-cells = <0>;
58
59 embedded-controller@38 {
60 compatible = "huawei,gaokun3-ec";
61 reg = <0x38>;
62
63 interrupts-extended = <&tlmm 107 IRQ_TYPE_LEVEL_LOW>;
64
65 #address-cells = <1>;
66 #size-cells = <0>;
67
68 connector@0 {
69 compatible = "usb-c-connector";
70 reg = <0>;
71 power-role = "dual";
72 data-role = "dual";
73
74 ports {
75 #address-cells = <1>;
76 #size-cells = <0>;
77
78 port@0 {
79 reg = <0>;
80
81 ucsi0_ss_in: endpoint {
82 remote-endpoint = <&usb_0_qmpphy_out>;
83 };
84 };
85
86 port@1 {
87 reg = <1>;
88
89 ucsi0_sbu: endpoint {
90 remote-endpoint = <&usb0_sbu_mux>;
91 };
92 };
93 };
94 };
95
96 connector@1 {
97 compatible = "usb-c-connector";
98 reg = <1>;
99 power-role = "dual";
100 data-role = "dual";
101
102 ports {
103 #address-cells = <1>;
104 #size-cells = <0>;
105
106 port@0 {
107 reg = <0>;
108
109 ucsi1_ss_in: endpoint {
110 remote-endpoint = <&usb_1_qmpphy_out>;
111 };
112 };
113
114 port@1 {
115 reg = <1>;
116
117 ucsi1_sbu: endpoint {
118 remote-endpoint = <&usb1_sbu_mux>;
119 };
120 };
121 };
122 };
123 };
124 };