xref: /linux/Documentation/devicetree/bindings/power/qcom,rpmpd.yaml (revision 05d32474ab547fb097cfe3f3eb00a2aa7cdf4067) 
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,eliza-rpmhpd
21          - qcom,glymur-rpmhpd
22          - qcom,hawi-rpmhpd
23          - qcom,kaanapali-rpmhpd
24          - qcom,mdm9607-rpmpd
25          - qcom,milos-rpmhpd
26          - qcom,msm8226-rpmpd
27          - qcom,msm8909-rpmpd
28          - qcom,msm8916-rpmpd
29          - qcom,msm8917-rpmpd
30          - qcom,msm8939-rpmpd
31          - qcom,msm8953-rpmpd
32          - qcom,msm8974-rpmpd
33          - qcom,msm8974pro-pma8084-rpmpd
34          - qcom,msm8976-rpmpd
35          - qcom,msm8994-rpmpd
36          - qcom,msm8996-rpmpd
37          - qcom,msm8998-rpmpd
38          - qcom,nord-rpmhpd
39          - qcom,qcm2290-rpmpd
40          - qcom,qcs404-rpmpd
41          - qcom,qcs615-rpmhpd
42          - qcom,qcs8300-rpmhpd
43          - qcom,qdu1000-rpmhpd
44          - qcom,qm215-rpmpd
45          - qcom,sa8155p-rpmhpd
46          - qcom,sa8540p-rpmhpd
47          - qcom,sa8775p-rpmhpd
48          - qcom,sar2130p-rpmhpd
49          - qcom,sc7180-rpmhpd
50          - qcom,sc7280-rpmhpd
51          - qcom,sc8180x-rpmhpd
52          - qcom,sc8280xp-rpmhpd
53          - qcom,sdm660-rpmpd
54          - qcom,sdm670-rpmhpd
55          - qcom,sdm845-rpmhpd
56          - qcom,sdx55-rpmhpd
57          - qcom,sdx65-rpmhpd
58          - qcom,sdx75-rpmhpd
59          - qcom,shikra-rpmpd
60          - qcom,sm4450-rpmhpd
61          - qcom,sm6115-rpmpd
62          - qcom,sm6125-rpmpd
63          - qcom,sm6350-rpmhpd
64          - qcom,sm6375-rpmpd
65          - qcom,sm7150-rpmhpd
66          - qcom,sm8150-rpmhpd
67          - qcom,sm8250-rpmhpd
68          - qcom,sm8350-rpmhpd
69          - qcom,sm8450-rpmhpd
70          - qcom,sm8550-rpmhpd
71          - qcom,sm8650-rpmhpd
72          - qcom,sm8750-rpmhpd
73          - qcom,x1e80100-rpmhpd
74      - items:
75          - enum:
76              - qcom,msm8937-rpmpd
77          - const: qcom,msm8917-rpmpd
78
79  '#power-domain-cells':
80    const: 1
81
82  operating-points-v2: true
83
84  opp-table:
85    type: object
86
87required:
88  - compatible
89  - '#power-domain-cells'
90  - operating-points-v2
91
92additionalProperties: false
93
94examples:
95  - |
96
97    // Example 1 (rpmh power domain controller and OPP table):
98
99    #include <dt-bindings/power/qcom-rpmpd.h>
100
101    rpmhpd: power-controller {
102      compatible = "qcom,sdm845-rpmhpd";
103      #power-domain-cells = <1>;
104      operating-points-v2 = <&rpmhpd_opp_table>;
105
106      rpmhpd_opp_table: opp-table {
107        compatible = "operating-points-v2";
108
109        rpmhpd_opp_ret: opp1 {
110          opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
111        };
112
113        rpmhpd_opp_min_svs: opp2 {
114          opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
115        };
116
117        rpmhpd_opp_low_svs: opp3 {
118          opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
119        };
120
121        rpmhpd_opp_svs: opp4 {
122          opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
123        };
124
125        rpmhpd_opp_svs_l1: opp5 {
126          opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
127        };
128
129        rpmhpd_opp_nom: opp6 {
130          opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
131        };
132
133        rpmhpd_opp_nom_l1: opp7 {
134          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
135        };
136
137        rpmhpd_opp_nom_l2: opp8 {
138          opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
139        };
140
141        rpmhpd_opp_turbo: opp9 {
142          opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
143        };
144
145        rpmhpd_opp_turbo_l1: opp10 {
146          opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
147        };
148      };
149    };
150
151  - |
152
153    // Example 2 (rpm power domain controller and OPP table):
154
155    rpmpd: power-controller {
156      compatible = "qcom,msm8996-rpmpd";
157      #power-domain-cells = <1>;
158      operating-points-v2 = <&rpmpd_opp_table>;
159
160      rpmpd_opp_table: opp-table {
161        compatible = "operating-points-v2";
162
163        rpmpd_opp_low: opp1 {
164          opp-level = <1>;
165        };
166
167        rpmpd_opp_ret: opp2 {
168          opp-level = <2>;
169        };
170
171        rpmpd_opp_svs: opp3 {
172          opp-level = <3>;
173        };
174
175        rpmpd_opp_normal: opp4 {
176          opp-level = <4>;
177        };
178
179        rpmpd_opp_high: opp5 {
180          opp-level = <5>;
181        };
182
183        rpmpd_opp_turbo: opp6 {
184          opp-level = <6>;
185        };
186      };
187    };
188
189  - |
190
191    // Example 3 (Client/Consumer device using OPP table):
192
193    leaky-device0@12350000 {
194      compatible = "foo,i-leak-current";
195      reg = <0x12350000 0x1000>;
196      power-domains = <&rpmhpd 0>;
197      operating-points-v2 = <&leaky_opp_table>;
198    };
199
200    leaky_opp_table: opp-table {
201      compatible = "operating-points-v2";
202      opp1 {
203        opp-hz = /bits/ 64 <144000>;
204        required-opps = <&rpmhpd_opp_low>;
205      };
206
207      opp2 {
208        opp-hz = /bits/ 64 <400000>;
209        required-opps = <&rpmhpd_opp_ret>;
210      };
211
212      opp3 {
213        opp-hz = /bits/ 64 <20000000>;
214        required-opps = <&rpmpd_opp_svs>;
215      };
216
217      opp4 {
218        opp-hz = /bits/ 64 <25000000>;
219        required-opps = <&rpmpd_opp_normal>;
220      };
221    };
222...
223