huawei,gaokun3-ec.yaml

  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    };