1*3d6a17fcSKrzysztof Kozlowski# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*3d6a17fcSKrzysztof Kozlowski%YAML 1.2 3*3d6a17fcSKrzysztof Kozlowski--- 4*3d6a17fcSKrzysztof Kozlowski$id: http://devicetree.org/schemas/embedded-controller/microsoft,surface-sam.yaml# 5*3d6a17fcSKrzysztof Kozlowski$schema: http://devicetree.org/meta-schemas/core.yaml# 6*3d6a17fcSKrzysztof Kozlowski 7*3d6a17fcSKrzysztof Kozlowskititle: Surface System Aggregator Module (SAM, SSAM) 8*3d6a17fcSKrzysztof Kozlowski 9*3d6a17fcSKrzysztof Kozlowskimaintainers: 10*3d6a17fcSKrzysztof Kozlowski - Konrad Dybcio <konradybcio@kernel.org> 11*3d6a17fcSKrzysztof Kozlowski 12*3d6a17fcSKrzysztof Kozlowskidescription: | 13*3d6a17fcSKrzysztof Kozlowski Surface devices use a standardized embedded controller to let the 14*3d6a17fcSKrzysztof Kozlowski operating system interface with various hardware functions. The 15*3d6a17fcSKrzysztof Kozlowski specific functionalities are modeled as subdevices and matched on 16*3d6a17fcSKrzysztof Kozlowski five levels: domain, category, target, instance and function. 17*3d6a17fcSKrzysztof Kozlowski 18*3d6a17fcSKrzysztof Kozlowskiproperties: 19*3d6a17fcSKrzysztof Kozlowski compatible: 20*3d6a17fcSKrzysztof Kozlowski const: microsoft,surface-sam 21*3d6a17fcSKrzysztof Kozlowski 22*3d6a17fcSKrzysztof Kozlowski interrupts: 23*3d6a17fcSKrzysztof Kozlowski maxItems: 1 24*3d6a17fcSKrzysztof Kozlowski 25*3d6a17fcSKrzysztof Kozlowski current-speed: true 26*3d6a17fcSKrzysztof Kozlowski 27*3d6a17fcSKrzysztof Kozlowskirequired: 28*3d6a17fcSKrzysztof Kozlowski - compatible 29*3d6a17fcSKrzysztof Kozlowski - interrupts 30*3d6a17fcSKrzysztof Kozlowski 31*3d6a17fcSKrzysztof KozlowskiadditionalProperties: false 32*3d6a17fcSKrzysztof Kozlowski 33*3d6a17fcSKrzysztof Kozlowskiexamples: 34*3d6a17fcSKrzysztof Kozlowski - | 35*3d6a17fcSKrzysztof Kozlowski #include <dt-bindings/interrupt-controller/irq.h> 36*3d6a17fcSKrzysztof Kozlowski uart { 37*3d6a17fcSKrzysztof Kozlowski embedded-controller { 38*3d6a17fcSKrzysztof Kozlowski compatible = "microsoft,surface-sam"; 39*3d6a17fcSKrzysztof Kozlowski 40*3d6a17fcSKrzysztof Kozlowski interrupts-extended = <&tlmm 91 IRQ_TYPE_EDGE_RISING>; 41*3d6a17fcSKrzysztof Kozlowski 42*3d6a17fcSKrzysztof Kozlowski pinctrl-0 = <&ssam_state>; 43*3d6a17fcSKrzysztof Kozlowski pinctrl-names = "default"; 44*3d6a17fcSKrzysztof Kozlowski 45*3d6a17fcSKrzysztof Kozlowski current-speed = <4000000>; 46*3d6a17fcSKrzysztof Kozlowski }; 47*3d6a17fcSKrzysztof Kozlowski }; 48