1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/soc/qcom/qc 4 $id: http://devicetree.org/schemas/soc/qcom/qcom,rpm.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Qualcomm Resource Power Manager (RPM) 7 title: Qualcomm Resource Power Manager (RPM)
8 8
9 description: 9 description:
10 This driver is used to interface with the Re 10 This driver is used to interface with the Resource Power Manager (RPM) found
11 in various Qualcomm platforms. The RPM allow 11 in various Qualcomm platforms. The RPM allows each component in the system
12 to vote for state of the system resources, s 12 to vote for state of the system resources, such as clocks, regulators and bus
13 frequencies. 13 frequencies.
14 14
15 maintainers: 15 maintainers:
16 - Bjorn Andersson <andersson@kernel.org> 16 - Bjorn Andersson <andersson@kernel.org>
17 17
18 properties: 18 properties:
19 compatible: 19 compatible:
20 enum: 20 enum:
21 - qcom,rpm-apq8064 21 - qcom,rpm-apq8064
22 - qcom,rpm-msm8660 22 - qcom,rpm-msm8660
23 - qcom,rpm-msm8960 23 - qcom,rpm-msm8960
24 - qcom,rpm-ipq8064 24 - qcom,rpm-ipq8064
25 - qcom,rpm-mdm9615 25 - qcom,rpm-mdm9615
26 26
27 reg: 27 reg:
28 maxItems: 1 28 maxItems: 1
29 29
30 interrupts: 30 interrupts:
31 maxItems: 3 31 maxItems: 3
32 32
33 interrupt-names: 33 interrupt-names:
34 items: 34 items:
35 - const: ack 35 - const: ack
36 - const: err 36 - const: err
37 - const: wakeup 37 - const: wakeup
38 38
39 qcom,ipc: 39 qcom,ipc:
40 $ref: /schemas/types.yaml#/definitions/pha 40 $ref: /schemas/types.yaml#/definitions/phandle-array
41 items: 41 items:
42 - items: 42 - items:
43 - description: phandle to a syscon n 43 - description: phandle to a syscon node representing the APCS registers
44 - description: u32 representing offs 44 - description: u32 representing offset to the register within the syscon
45 - description: u32 representing the 45 - description: u32 representing the ipc bit within the register
46 description: 46 description:
47 Three entries specifying the outgoing ip 47 Three entries specifying the outgoing ipc bit used for signaling the RPM.
48 48
49 patternProperties: 49 patternProperties:
50 "^regulators(-[01])?$": 50 "^regulators(-[01])?$":
51 type: object 51 type: object
52 $ref: /schemas/regulator/qcom,rpm-regulato 52 $ref: /schemas/regulator/qcom,rpm-regulator.yaml#
53 unevaluatedProperties: false 53 unevaluatedProperties: false
54 54
55 required: 55 required:
56 - compatible 56 - compatible
57 - reg 57 - reg
58 - interrupts 58 - interrupts
59 - interrupt-names 59 - interrupt-names
60 - qcom,ipc 60 - qcom,ipc
61 61
62 additionalProperties: false 62 additionalProperties: false
63 63
64 examples: 64 examples:
65 - | 65 - |
66 #include <dt-bindings/interrupt-controller 66 #include <dt-bindings/interrupt-controller/arm-gic.h>
67 #include <dt-bindings/interrupt-controller 67 #include <dt-bindings/interrupt-controller/irq.h>
68 #include <dt-bindings/mfd/qcom-rpm.h> 68 #include <dt-bindings/mfd/qcom-rpm.h>
69 69
70 rpm@108000 { 70 rpm@108000 {
71 compatible = "qcom,rpm-msm8960"; 71 compatible = "qcom,rpm-msm8960";
72 reg = <0x108000 0x1000>; 72 reg = <0x108000 0x1000>;
73 qcom,ipc = <&apcs 0x8 2>; 73 qcom,ipc = <&apcs 0x8 2>;
74 74
75 interrupts = <GIC_SPI 19 IRQ_TYPE_NONE>, 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" 76 interrupt-names = "ack", "err", "wakeup";
77 77
78 regulators { 78 regulators {
79 compatible = "qcom,rpm-pm8921-regulato 79 compatible = "qcom,rpm-pm8921-regulators";
80 vdd_l1_l2_l12_l18-supply = <&pm8921_s4 80 vdd_l1_l2_l12_l18-supply = <&pm8921_s4>;
81 81
82 s1 { 82 s1 {
83 regulator-min-microvolt = <1225000>; 83 regulator-min-microvolt = <1225000>;
84 regulator-max-microvolt = <1225000>; 84 regulator-max-microvolt = <1225000>;
85 85
86 bias-pull-down; 86 bias-pull-down;
87 87
88 qcom,switch-mode-frequency = <320000 88 qcom,switch-mode-frequency = <3200000>;
89 }; 89 };
90 90
91 pm8921_s4: s4 { 91 pm8921_s4: s4 {
92 regulator-min-microvolt = <1800000>; 92 regulator-min-microvolt = <1800000>;
93 regulator-max-microvolt = <1800000>; 93 regulator-max-microvolt = <1800000>;
94 94
95 qcom,switch-mode-frequency = <160000 95 qcom,switch-mode-frequency = <1600000>;
96 bias-pull-down; 96 bias-pull-down;
97 97
98 qcom,force-mode = <QCOM_RPM_FORCE_MO 98 qcom,force-mode = <QCOM_RPM_FORCE_MODE_AUTO>;
99 }; 99 };
100 }; 100 };
101 }; 101 };
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