| 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/soc/qcom/qcom,rpm.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Qualcomm Resource Power Manager (RPM) |
| 8 | |
| 9 | description: |
| 10 | This driver is used to interface with the Resource Power Manager (RPM) found |
| 11 | in various Qualcomm platforms. The RPM allows each component in the system |
| 12 | to vote for state of the system resources, such as clocks, regulators and bus |
| 13 | frequencies. |
| 14 | |
| 15 | maintainers: |
| 16 | - Bjorn Andersson <andersson@kernel.org> |
| 17 | |
| 18 | properties: |
| 19 | compatible: |
| 20 | enum: |
| 21 | - qcom,rpm-apq8064 |
| 22 | - qcom,rpm-msm8660 |
| 23 | - qcom,rpm-msm8960 |
| 24 | - qcom,rpm-ipq8064 |
| 25 | - qcom,rpm-mdm9615 |
| 26 | |
| 27 | reg: |
| 28 | maxItems: 1 |
| 29 | |
| 30 | interrupts: |
| 31 | maxItems: 3 |
| 32 | |
| 33 | interrupt-names: |
| 34 | items: |
| 35 | - const: ack |
| 36 | - const: err |
| 37 | - const: wakeup |
| 38 | |
| 39 | qcom,ipc: |
| 40 | $ref: /schemas/types.yaml#/definitions/phandle-array |
| 41 | items: |
| 42 | - items: |
| 43 | - description: phandle to a syscon node representing the APCS registers |
| 44 | - description: u32 representing offset to the register within the syscon |
| 45 | - description: u32 representing the ipc bit within the register |
| 46 | description: |
| 47 | Three entries specifying the outgoing ipc bit used for signaling the RPM. |
| 48 | |
| 49 | patternProperties: |
| 50 | "^regulators(-[01])?$": |
| 51 | type: object |
| 52 | $ref: /schemas/regulator/qcom,rpm-regulator.yaml# |
| 53 | unevaluatedProperties: false |
| 54 | |
| 55 | required: |
| 56 | - compatible |
| 57 | - reg |
| 58 | - interrupts |
| 59 | - interrupt-names |
| 60 | - qcom,ipc |
| 61 | |
| 62 | additionalProperties: false |
| 63 | |
| 64 | examples: |
| 65 | - | |
| 66 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 67 | #include <dt-bindings/interrupt-controller/irq.h> |
| 68 | #include <dt-bindings/mfd/qcom-rpm.h> |
| 69 | |
| 70 | rpm@108000 { |
| 71 | compatible = "qcom,rpm-msm8960"; |
| 72 | reg = <0x108000 0x1000>; |
| 73 | qcom,ipc = <&apcs 0x8 2>; |
| 74 | |
| 75 | interrupts = <GIC_SPI 19 IRQ_TYPE_NONE>, <GIC_SPI 21 IRQ_TYPE_NONE>, <GIC_SPI 22 IRQ_TYPE_NONE>; |
| 76 | interrupt-names = "ack", "err", "wakeup"; |
| 77 | |
| 78 | regulators { |
| 79 | compatible = "qcom,rpm-pm8921-regulators"; |
| 80 | vdd_l1_l2_l12_l18-supply = <&pm8921_s4>; |
| 81 | |
| 82 | s1 { |
| 83 | regulator-min-microvolt = <1225000>; |
| 84 | regulator-max-microvolt = <1225000>; |
| 85 | |
| 86 | bias-pull-down; |
| 87 | |
| 88 | qcom,switch-mode-frequency = <3200000>; |
| 89 | }; |
| 90 | |
| 91 | pm8921_s4: s4 { |
| 92 | regulator-min-microvolt = <1800000>; |
| 93 | regulator-max-microvolt = <1800000>; |
| 94 | |
| 95 | qcom,switch-mode-frequency = <1600000>; |
| 96 | bias-pull-down; |
| 97 | |
| 98 | qcom,force-mode = <QCOM_RPM_FORCE_MODE_AUTO>; |
| 99 | }; |
| 100 | }; |
| 101 | }; |