| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/remoteproc/qcom,glink-rpm-edge.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Qualcomm G-Link RPM edge |
| 8 | |
| 9 | description: | |
| 10 | Qualcomm G-Link edge, a FIFO based mechanism for communication with Resource |
| 11 | Power Manager (RPM) on various Qualcomm platforms. |
| 12 | |
| 13 | maintainers: |
| 14 | - Bjorn Andersson <andersson@kernel.org> |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | const: qcom,glink-rpm |
| 19 | |
| 20 | label: |
| 21 | $ref: /schemas/types.yaml#/definitions/string |
| 22 | description: |
| 23 | Name of the edge, used for debugging and identification purposes. The |
| 24 | node name will be used if this is not present. |
| 25 | |
| 26 | interrupts: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | mboxes: |
| 30 | items: |
| 31 | - description: rpm_hlos mailbox in APCS |
| 32 | |
| 33 | qcom,remote-pid: |
| 34 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 35 | description: |
| 36 | The identifier for the remote processor as known by the rest of the |
| 37 | system. |
| 38 | |
| 39 | qcom,rpm-msg-ram: |
| 40 | $ref: /schemas/types.yaml#/definitions/phandle |
| 41 | description: | |
| 42 | RPM message memory resource (compatible: qcom,rpm-msg-ram). |
| 43 | |
| 44 | rpm-requests: |
| 45 | type: object |
| 46 | $ref: /schemas/soc/qcom/qcom,smd-rpm.yaml# |
| 47 | unevaluatedProperties: false |
| 48 | description: |
| 49 | Qualcomm Resource Power Manager (RPM) over G-Link |
| 50 | |
| 51 | properties: |
| 52 | qcom,intents: |
| 53 | $ref: /schemas/types.yaml#/definitions/uint32-matrix |
| 54 | minItems: 1 |
| 55 | maxItems: 32 |
| 56 | items: |
| 57 | items: |
| 58 | - description: size of each intent to preallocate |
| 59 | - description: amount of intents to preallocate |
| 60 | minimum: 1 |
| 61 | description: |
| 62 | List of (size, amount) pairs describing what intents should be |
| 63 | preallocated for this virtual channel. This can be used to tweak the |
| 64 | default intents available for the channel to meet expectations of the |
| 65 | remote. |
| 66 | |
| 67 | required: |
| 68 | - qcom,glink-channels |
| 69 | |
| 70 | required: |
| 71 | - compatible |
| 72 | - interrupts |
| 73 | - mboxes |
| 74 | |
| 75 | anyOf: |
| 76 | - required: |
| 77 | - qcom,remote-pid |
| 78 | - required: |
| 79 | - qcom,rpm-msg-ram |
| 80 | |
| 81 | additionalProperties: false |
| 82 | |
| 83 | examples: |
| 84 | - | |
| 85 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 86 | |
| 87 | glink-edge { |
| 88 | compatible = "qcom,glink-rpm"; |
| 89 | interrupts = <GIC_SPI 168 IRQ_TYPE_EDGE_RISING>; |
| 90 | mboxes = <&apcs_glb 0>; |
| 91 | qcom,rpm-msg-ram = <&rpm_msg_ram>; |
| 92 | |
| 93 | rpm-requests { |
| 94 | compatible = "qcom,rpm-msm8996"; |
| 95 | qcom,glink-channels = "rpm_requests"; |
| 96 | |
| 97 | /* ... */ |
| 98 | }; |
| 99 | }; |