xref: /linux/Documentation/devicetree/bindings/platform/microsoft,surface-sam.yaml (revision 566ab427f827b0256d3e8ce0235d088e6a9c28bd) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/platform/microsoft,surface-sam.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Surface System Aggregator Module (SAM, SSAM)
8
9maintainers:
10  - Konrad Dybcio <konradybcio@kernel.org>
11
12description: |
13  Surface devices use a standardized embedded controller to let the
14  operating system interface with various hardware functions. The
15  specific functionalities are modeled as subdevices and matched on
16  five levels: domain, category, target, instance and function.
17
18properties:
19  compatible:
20    const: microsoft,surface-sam
21
22  interrupts:
23    maxItems: 1
24
25  current-speed: true
26
27required:
28  - compatible
29  - interrupts
30
31additionalProperties: false
32
33examples:
34  - |
35    #include <dt-bindings/interrupt-controller/irq.h>
36    uart {
37        embedded-controller {
38            compatible = "microsoft,surface-sam";
39
40            interrupts-extended = <&tlmm 91 IRQ_TYPE_EDGE_RISING>;
41
42            pinctrl-0 = <&ssam_state>;
43            pinctrl-names = "default";
44
45            current-speed = <4000000>;
46        };
47    };
48