| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/bus/qcom,ssbi.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Qualcomm Single-wire Serial Bus Interface (SSBI) |
| 8 | |
| 9 | description: |
| 10 | Some Qualcomm MSM devices contain a point-to-point serial bus used to |
| 11 | communicate with a limited range of devices (mostly power management |
| 12 | chips). |
| 13 | |
| 14 | maintainers: |
| 15 | - Andy Gross <agross@kernel.org> |
| 16 | - Bjorn Andersson <andersson@kernel.org> |
| 17 | |
| 18 | properties: |
| 19 | compatible: |
| 20 | const: qcom,ssbi |
| 21 | |
| 22 | reg: |
| 23 | maxItems: 1 |
| 24 | |
| 25 | qcom,controller-type: |
| 26 | description: |
| 27 | Indicates the SSBI bus variant the controller should use to talk |
| 28 | with the slave device. The type chosen is determined by the attached |
| 29 | slave. |
| 30 | enum: |
| 31 | - ssbi |
| 32 | - ssbi2 |
| 33 | - pmic-arbiter |
| 34 | |
| 35 | pmic: |
| 36 | $ref: /schemas/mfd/qcom-pm8xxx.yaml# |
| 37 | |
| 38 | required: |
| 39 | - compatible |
| 40 | - reg |
| 41 | - qcom,controller-type |
| 42 | |
| 43 | additionalProperties: false |
| 44 | |
| 45 | examples: |
| 46 | - | |
| 47 | #include <dt-bindings/interrupt-controller/irq.h> |
| 48 | ssbi@c00000 { |
| 49 | compatible = "qcom,ssbi"; |
| 50 | reg = <0x00c00000 0x1000>; |
| 51 | qcom,controller-type = "pmic-arbiter"; |
| 52 | |
| 53 | pmic { |
| 54 | compatible = "qcom,pm8821"; |
| 55 | interrupt-parent = <&msmgpio>; |
| 56 | interrupts = <76 IRQ_TYPE_LEVEL_LOW>; |
| 57 | #interrupt-cells = <2>; |
| 58 | interrupt-controller; |
| 59 | #address-cells = <1>; |
| 60 | #size-cells = <0>; |
| 61 | }; |
| 62 | }; |
| 63 | ... |