xref: /linux/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml (revision e7d759f31ca295d589f7420719c311870bb3166f) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/power/qcom,rpmpd.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Qualcomm RPM/RPMh Power domains
8
9maintainers:
10  - Bjorn Andersson <andersson@kernel.org>
11
12description:
13  For RPM/RPMh Power domains, we communicate a performance state to RPM/RPMh
14  which then translates it into a corresponding voltage on a rail.
15
16properties:
17  compatible:
18    oneOf:
19      - enum:
20          - qcom,mdm9607-rpmpd
21          - qcom,msm8226-rpmpd
22          - qcom,msm8909-rpmpd
23          - qcom,msm8916-rpmpd
24          - qcom,msm8917-rpmpd
25          - qcom,msm8939-rpmpd
26          - qcom,msm8953-rpmpd
27          - qcom,msm8976-rpmpd
28          - qcom,msm8994-rpmpd
29          - qcom,msm8996-rpmpd
30          - qcom,msm8998-rpmpd
31          - qcom,qcm2290-rpmpd
32          - qcom,qcs404-rpmpd
33          - qcom,qdu1000-rpmhpd
34          - qcom,qm215-rpmpd
35          - qcom,sa8155p-rpmhpd
36          - qcom,sa8540p-rpmhpd
37          - qcom,sa8775p-rpmhpd
38          - qcom,sc7180-rpmhpd
39          - qcom,sc7280-rpmhpd
40          - qcom,sc8180x-rpmhpd
41          - qcom,sc8280xp-rpmhpd
42          - qcom,sdm660-rpmpd
43          - qcom,sdm670-rpmhpd
44          - qcom,sdm845-rpmhpd
45          - qcom,sdx55-rpmhpd
46          - qcom,sdx65-rpmhpd
47          - qcom,sdx75-rpmhpd
48          - qcom,sm6115-rpmpd
49          - qcom,sm6125-rpmpd
50          - qcom,sm6350-rpmhpd
51          - qcom,sm6375-rpmpd
52          - qcom,sm7150-rpmhpd
53          - qcom,sm8150-rpmhpd
54          - qcom,sm8250-rpmhpd
55          - qcom,sm8350-rpmhpd
56          - qcom,sm8450-rpmhpd
57          - qcom,sm8550-rpmhpd
58          - qcom,sm8650-rpmhpd
59          - qcom,x1e80100-rpmhpd
60      - items:
61          - enum:
62              - qcom,msm8937-rpmpd
63          - const: qcom,msm8917-rpmpd
64
65  '#power-domain-cells':
66    const: 1
67
68  operating-points-v2: true
69
70  opp-table:
71    type: object
72
73required:
74  - compatible
75  - '#power-domain-cells'
76  - operating-points-v2
77
78additionalProperties: false
79
80examples:
81  - |
82
83    // Example 1 (rpmh power domain controller and OPP table):
84
85    #include <dt-bindings/power/qcom-rpmpd.h>
86
87    rpmhpd: power-controller {
88      compatible = "qcom,sdm845-rpmhpd";
89      #power-domain-cells = <1>;
90      operating-points-v2 = <&rpmhpd_opp_table>;
91
92      rpmhpd_opp_table: opp-table {
93        compatible = "operating-points-v2";
94
95        rpmhpd_opp_ret: opp1 {
96          opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
97        };
98
99        rpmhpd_opp_min_svs: opp2 {
100          opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
101        };
102
103        rpmhpd_opp_low_svs: opp3 {
104          opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
105        };
106
107        rpmhpd_opp_svs: opp4 {
108          opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
109        };
110
111        rpmhpd_opp_svs_l1: opp5 {
112          opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
113        };
114
115        rpmhpd_opp_nom: opp6 {
116          opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
117        };
118
119        rpmhpd_opp_nom_l1: opp7 {
120          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
121        };
122
123        rpmhpd_opp_nom_l2: opp8 {
124          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
125        };
126
127        rpmhpd_opp_turbo: opp9 {
128          opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
129        };
130
131        rpmhpd_opp_turbo_l1: opp10 {
132          opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
133        };
134      };
135    };
136
137  - |
138
139    // Example 2 (rpm power domain controller and OPP table):
140
141    rpmpd: power-controller {
142      compatible = "qcom,msm8996-rpmpd";
143      #power-domain-cells = <1>;
144      operating-points-v2 = <&rpmpd_opp_table>;
145
146      rpmpd_opp_table: opp-table {
147        compatible = "operating-points-v2";
148
149        rpmpd_opp_low: opp1 {
150          opp-level = <1>;
151        };
152
153        rpmpd_opp_ret: opp2 {
154          opp-level = <2>;
155        };
156
157        rpmpd_opp_svs: opp3 {
158          opp-level = <3>;
159        };
160
161        rpmpd_opp_normal: opp4 {
162          opp-level = <4>;
163        };
164
165        rpmpd_opp_high: opp5 {
166          opp-level = <5>;
167        };
168
169        rpmpd_opp_turbo: opp6 {
170          opp-level = <6>;
171        };
172      };
173    };
174
175  - |
176
177    // Example 3 (Client/Consumer device using OPP table):
178
179    leaky-device0@12350000 {
180      compatible = "foo,i-leak-current";
181      reg = <0x12350000 0x1000>;
182      power-domains = <&rpmhpd 0>;
183      operating-points-v2 = <&leaky_opp_table>;
184    };
185
186    leaky_opp_table: opp-table {
187      compatible = "operating-points-v2";
188      opp1 {
189        opp-hz = /bits/ 64 <144000>;
190        required-opps = <&rpmhpd_opp_low>;
191      };
192
193      opp2 {
194        opp-hz = /bits/ 64 <400000>;
195        required-opps = <&rpmhpd_opp_ret>;
196      };
197
198      opp3 {
199        opp-hz = /bits/ 64 <20000000>;
200        required-opps = <&rpmpd_opp_svs>;
201      };
202
203      opp4 {
204        opp-hz = /bits/ 64 <25000000>;
205        required-opps = <&rpmpd_opp_normal>;
206      };
207    };
208...
209