qcom,rpmpd.yaml

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