xref: /linux/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml (revision ab93e0dd72c37d378dd936f031ffb83ff2bd87ce) 
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,glymur-rpmhpd
21          - qcom,mdm9607-rpmpd
22          - qcom,milos-rpmhpd
23          - qcom,msm8226-rpmpd
24          - qcom,msm8909-rpmpd
25          - qcom,msm8916-rpmpd
26          - qcom,msm8917-rpmpd
27          - qcom,msm8939-rpmpd
28          - qcom,msm8953-rpmpd
29          - qcom,msm8974-rpmpd
30          - qcom,msm8974pro-pma8084-rpmpd
31          - qcom,msm8976-rpmpd
32          - qcom,msm8994-rpmpd
33          - qcom,msm8996-rpmpd
34          - qcom,msm8998-rpmpd
35          - qcom,qcm2290-rpmpd
36          - qcom,qcs404-rpmpd
37          - qcom,qcs615-rpmhpd
38          - qcom,qcs8300-rpmhpd
39          - qcom,qdu1000-rpmhpd
40          - qcom,qm215-rpmpd
41          - qcom,sa8155p-rpmhpd
42          - qcom,sa8540p-rpmhpd
43          - qcom,sa8775p-rpmhpd
44          - qcom,sar2130p-rpmhpd
45          - qcom,sc7180-rpmhpd
46          - qcom,sc7280-rpmhpd
47          - qcom,sc8180x-rpmhpd
48          - qcom,sc8280xp-rpmhpd
49          - qcom,sdm660-rpmpd
50          - qcom,sdm670-rpmhpd
51          - qcom,sdm845-rpmhpd
52          - qcom,sdx55-rpmhpd
53          - qcom,sdx65-rpmhpd
54          - qcom,sdx75-rpmhpd
55          - qcom,sm4450-rpmhpd
56          - qcom,sm6115-rpmpd
57          - qcom,sm6125-rpmpd
58          - qcom,sm6350-rpmhpd
59          - qcom,sm6375-rpmpd
60          - qcom,sm7150-rpmhpd
61          - qcom,sm8150-rpmhpd
62          - qcom,sm8250-rpmhpd
63          - qcom,sm8350-rpmhpd
64          - qcom,sm8450-rpmhpd
65          - qcom,sm8550-rpmhpd
66          - qcom,sm8650-rpmhpd
67          - qcom,sm8750-rpmhpd
68          - qcom,x1e80100-rpmhpd
69      - items:
70          - enum:
71              - qcom,msm8937-rpmpd
72          - const: qcom,msm8917-rpmpd
73
74  '#power-domain-cells':
75    const: 1
76
77  operating-points-v2: true
78
79  opp-table:
80    type: object
81
82required:
83  - compatible
84  - '#power-domain-cells'
85  - operating-points-v2
86
87additionalProperties: false
88
89examples:
90  - |
91
92    // Example 1 (rpmh power domain controller and OPP table):
93
94    #include <dt-bindings/power/qcom-rpmpd.h>
95
96    rpmhpd: power-controller {
97      compatible = "qcom,sdm845-rpmhpd";
98      #power-domain-cells = <1>;
99      operating-points-v2 = <&rpmhpd_opp_table>;
100
101      rpmhpd_opp_table: opp-table {
102        compatible = "operating-points-v2";
103
104        rpmhpd_opp_ret: opp1 {
105          opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
106        };
107
108        rpmhpd_opp_min_svs: opp2 {
109          opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
110        };
111
112        rpmhpd_opp_low_svs: opp3 {
113          opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
114        };
115
116        rpmhpd_opp_svs: opp4 {
117          opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
118        };
119
120        rpmhpd_opp_svs_l1: opp5 {
121          opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
122        };
123
124        rpmhpd_opp_nom: opp6 {
125          opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
126        };
127
128        rpmhpd_opp_nom_l1: opp7 {
129          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
130        };
131
132        rpmhpd_opp_nom_l2: opp8 {
133          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
134        };
135
136        rpmhpd_opp_turbo: opp9 {
137          opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
138        };
139
140        rpmhpd_opp_turbo_l1: opp10 {
141          opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
142        };
143      };
144    };
145
146  - |
147
148    // Example 2 (rpm power domain controller and OPP table):
149
150    rpmpd: power-controller {
151      compatible = "qcom,msm8996-rpmpd";
152      #power-domain-cells = <1>;
153      operating-points-v2 = <&rpmpd_opp_table>;
154
155      rpmpd_opp_table: opp-table {
156        compatible = "operating-points-v2";
157
158        rpmpd_opp_low: opp1 {
159          opp-level = <1>;
160        };
161
162        rpmpd_opp_ret: opp2 {
163          opp-level = <2>;
164        };
165
166        rpmpd_opp_svs: opp3 {
167          opp-level = <3>;
168        };
169
170        rpmpd_opp_normal: opp4 {
171          opp-level = <4>;
172        };
173
174        rpmpd_opp_high: opp5 {
175          opp-level = <5>;
176        };
177
178        rpmpd_opp_turbo: opp6 {
179          opp-level = <6>;
180        };
181      };
182    };
183
184  - |
185
186    // Example 3 (Client/Consumer device using OPP table):
187
188    leaky-device0@12350000 {
189      compatible = "foo,i-leak-current";
190      reg = <0x12350000 0x1000>;
191      power-domains = <&rpmhpd 0>;
192      operating-points-v2 = <&leaky_opp_table>;
193    };
194
195    leaky_opp_table: opp-table {
196      compatible = "operating-points-v2";
197      opp1 {
198        opp-hz = /bits/ 64 <144000>;
199        required-opps = <&rpmhpd_opp_low>;
200      };
201
202      opp2 {
203        opp-hz = /bits/ 64 <400000>;
204        required-opps = <&rpmhpd_opp_ret>;
205      };
206
207      opp3 {
208        opp-hz = /bits/ 64 <20000000>;
209        required-opps = <&rpmpd_opp_svs>;
210      };
211
212      opp4 {
213        opp-hz = /bits/ 64 <25000000>;
214        required-opps = <&rpmpd_opp_normal>;
215      };
216    };
217...
218