xref: /linux/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml (revision fa079a0616edbcdad538128306abbc19b68a9863) 
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,msm8974-rpmpd
28          - qcom,msm8974pro-pma8084-rpmpd
29          - qcom,msm8976-rpmpd
30          - qcom,msm8994-rpmpd
31          - qcom,msm8996-rpmpd
32          - qcom,msm8998-rpmpd
33          - qcom,qcm2290-rpmpd
34          - qcom,qcs404-rpmpd
35          - qcom,qcs615-rpmhpd
36          - qcom,qcs8300-rpmhpd
37          - qcom,qdu1000-rpmhpd
38          - qcom,qm215-rpmpd
39          - qcom,sa8155p-rpmhpd
40          - qcom,sa8540p-rpmhpd
41          - qcom,sa8775p-rpmhpd
42          - qcom,sar2130p-rpmhpd
43          - qcom,sc7180-rpmhpd
44          - qcom,sc7280-rpmhpd
45          - qcom,sc8180x-rpmhpd
46          - qcom,sc8280xp-rpmhpd
47          - qcom,sdm660-rpmpd
48          - qcom,sdm670-rpmhpd
49          - qcom,sdm845-rpmhpd
50          - qcom,sdx55-rpmhpd
51          - qcom,sdx65-rpmhpd
52          - qcom,sdx75-rpmhpd
53          - qcom,sm4450-rpmhpd
54          - qcom,sm6115-rpmpd
55          - qcom,sm6125-rpmpd
56          - qcom,sm6350-rpmhpd
57          - qcom,sm6375-rpmpd
58          - qcom,sm7150-rpmhpd
59          - qcom,sm8150-rpmhpd
60          - qcom,sm8250-rpmhpd
61          - qcom,sm8350-rpmhpd
62          - qcom,sm8450-rpmhpd
63          - qcom,sm8550-rpmhpd
64          - qcom,sm8650-rpmhpd
65          - qcom,sm8750-rpmhpd
66          - qcom,x1e80100-rpmhpd
67      - items:
68          - enum:
69              - qcom,msm8937-rpmpd
70          - const: qcom,msm8917-rpmpd
71
72  '#power-domain-cells':
73    const: 1
74
75  operating-points-v2: true
76
77  opp-table:
78    type: object
79
80required:
81  - compatible
82  - '#power-domain-cells'
83  - operating-points-v2
84
85additionalProperties: false
86
87examples:
88  - |
89
90    // Example 1 (rpmh power domain controller and OPP table):
91
92    #include <dt-bindings/power/qcom-rpmpd.h>
93
94    rpmhpd: power-controller {
95      compatible = "qcom,sdm845-rpmhpd";
96      #power-domain-cells = <1>;
97      operating-points-v2 = <&rpmhpd_opp_table>;
98
99      rpmhpd_opp_table: opp-table {
100        compatible = "operating-points-v2";
101
102        rpmhpd_opp_ret: opp1 {
103          opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
104        };
105
106        rpmhpd_opp_min_svs: opp2 {
107          opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
108        };
109
110        rpmhpd_opp_low_svs: opp3 {
111          opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
112        };
113
114        rpmhpd_opp_svs: opp4 {
115          opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
116        };
117
118        rpmhpd_opp_svs_l1: opp5 {
119          opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
120        };
121
122        rpmhpd_opp_nom: opp6 {
123          opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
124        };
125
126        rpmhpd_opp_nom_l1: opp7 {
127          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
128        };
129
130        rpmhpd_opp_nom_l2: opp8 {
131          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
132        };
133
134        rpmhpd_opp_turbo: opp9 {
135          opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
136        };
137
138        rpmhpd_opp_turbo_l1: opp10 {
139          opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
140        };
141      };
142    };
143
144  - |
145
146    // Example 2 (rpm power domain controller and OPP table):
147
148    rpmpd: power-controller {
149      compatible = "qcom,msm8996-rpmpd";
150      #power-domain-cells = <1>;
151      operating-points-v2 = <&rpmpd_opp_table>;
152
153      rpmpd_opp_table: opp-table {
154        compatible = "operating-points-v2";
155
156        rpmpd_opp_low: opp1 {
157          opp-level = <1>;
158        };
159
160        rpmpd_opp_ret: opp2 {
161          opp-level = <2>;
162        };
163
164        rpmpd_opp_svs: opp3 {
165          opp-level = <3>;
166        };
167
168        rpmpd_opp_normal: opp4 {
169          opp-level = <4>;
170        };
171
172        rpmpd_opp_high: opp5 {
173          opp-level = <5>;
174        };
175
176        rpmpd_opp_turbo: opp6 {
177          opp-level = <6>;
178        };
179      };
180    };
181
182  - |
183
184    // Example 3 (Client/Consumer device using OPP table):
185
186    leaky-device0@12350000 {
187      compatible = "foo,i-leak-current";
188      reg = <0x12350000 0x1000>;
189      power-domains = <&rpmhpd 0>;
190      operating-points-v2 = <&leaky_opp_table>;
191    };
192
193    leaky_opp_table: opp-table {
194      compatible = "operating-points-v2";
195      opp1 {
196        opp-hz = /bits/ 64 <144000>;
197        required-opps = <&rpmhpd_opp_low>;
198      };
199
200      opp2 {
201        opp-hz = /bits/ 64 <400000>;
202        required-opps = <&rpmhpd_opp_ret>;
203      };
204
205      opp3 {
206        opp-hz = /bits/ 64 <20000000>;
207        required-opps = <&rpmpd_opp_svs>;
208      };
209
210      opp4 {
211        opp-hz = /bits/ 64 <25000000>;
212        required-opps = <&rpmpd_opp_normal>;
213      };
214    };
215...
216