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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/bus/qcom,ssbi.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/bus/qcom,ssbi.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Qualcomm Single-wire Serial Bus Interface (SSBI)

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description:

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  Some Qualcomm MSM devices contain a point-to-point serial bus used to

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  communicate with a limited range of devices (mostly power management

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  chips).

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maintainers:

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  - Andy Gross <agross@kernel.org>

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  - Bjorn Andersson <andersson@kernel.org>

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properties:

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  compatible:

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    const: qcom,ssbi

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  reg:

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    maxItems: 1

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  qcom,controller-type:

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    description:

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      Indicates the SSBI bus variant the controller should use to talk

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      with the slave device. The type chosen is determined by the attached

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      slave.

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    enum:

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      - ssbi

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      - ssbi2

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      - pmic-arbiter

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  pmic:

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    $ref: /schemas/mfd/qcom-pm8xxx.yaml#

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required:

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  - compatible

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  - reg

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  - qcom,controller-type

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/interrupt-controller/irq.h>

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    ssbi@c00000 {

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        compatible = "qcom,ssbi";

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        reg = <0x00c00000 0x1000>;

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        qcom,controller-type = "pmic-arbiter";

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        pmic {

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            compatible = "qcom,pm8821";

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            interrupt-parent = <&msmgpio>;

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            interrupts = <76 IRQ_TYPE_LEVEL_LOW>;

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            #interrupt-cells = <2>;

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            interrupt-controller;

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            #address-cells = <1>;

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            #size-cells = <0>;

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        };

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    };

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...

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