Documentation/devicetree/bindings/power/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
   7 title: Qualcomm RPM/RPMh Power domains
   8
   9 maintainers:
  10   - Bjorn Andersson <andersson@kernel.org>
  11
  12 description:
  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
  16 properties:
  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,qdu1000-rpmhpd
  36           - qcom,qm215-rpmpd
  37           - qcom,sa8155p-rpmhpd
  38           - qcom,sa8540p-rpmhpd
  39           - qcom,sa8775p-rpmhpd
  40           - qcom,sc7180-rpmhpd
  41           - qcom,sc7280-rpmhpd
  42           - qcom,sc8180x-rpmhpd
  43           - qcom,sc8280xp-rpmhpd
  44           - qcom,sdm660-rpmpd
  45           - qcom,sdm670-rpmhpd
  46           - qcom,sdm845-rpmhpd
  47           - qcom,sdx55-rpmhpd
  48           - qcom,sdx65-rpmhpd
  49           - qcom,sdx75-rpmhpd
  50           - qcom,sm6115-rpmpd
  51           - qcom,sm6125-rpmpd
  52           - qcom,sm6350-rpmhpd
  53           - qcom,sm6375-rpmpd
  54           - qcom,sm7150-rpmhpd
  55           - qcom,sm8150-rpmhpd
  56           - qcom,sm8250-rpmhpd
  57           - qcom,sm8350-rpmhpd
  58           - qcom,sm8450-rpmhpd
  59           - qcom,sm8550-rpmhpd
  60           - qcom,sm8650-rpmhpd
  61           - qcom,x1e80100-rpmhpd
  62       - items:
  63           - enum:
  64               - qcom,msm8937-rpmpd
  65           - const: qcom,msm8917-rpmpd
  66
  67   '#power-domain-cells':
  68     const: 1
  69
  70   operating-points-v2: true
  71
  72   opp-table:
  73     type: object
  74
  75 required:
  76   - compatible
  77   - '#power-domain-cells'
  78   - operating-points-v2
  79
  80 additionalProperties: false
  81
  82 examples:
  83   - |
  84
  85     // Example 1 (rpmh power domain controller and OPP table):
  86
  87     #include <dt-bindings/power/qcom-rpmpd.h>
  88
  89     rpmhpd: power-controller {
  90       compatible = "qcom,sdm845-rpmhpd";
  91       #power-domain-cells = <1>;
  92       operating-points-v2 = <&rpmhpd_opp_table>;
  93
  94       rpmhpd_opp_table: opp-table {
  95         compatible = "operating-points-v2";
  96
  97         rpmhpd_opp_ret: opp1 {
  98           opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>;
  99         };
 100
 101         rpmhpd_opp_min_svs: opp2 {
 102           opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>;
 103         };
 104
 105         rpmhpd_opp_low_svs: opp3 {
 106           opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>;
 107         };
 108
 109         rpmhpd_opp_svs: opp4 {
 110           opp-level = <RPMH_REGULATOR_LEVEL_SVS>;
 111         };
 112
 113         rpmhpd_opp_svs_l1: opp5 {
 114           opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>;
 115         };
 116
 117         rpmhpd_opp_nom: opp6 {
 118           opp-level = <RPMH_REGULATOR_LEVEL_NOM>;
 119         };
 120
 121         rpmhpd_opp_nom_l1: opp7 {
 122           opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>;
 123         };
 124
 125         rpmhpd_opp_nom_l2: opp8 {
 126           opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>;
 127         };
 128
 129         rpmhpd_opp_turbo: opp9 {
 130           opp-level = <RPMH_REGULATOR_LEVEL_TURBO>;
 131         };
 132
 133         rpmhpd_opp_turbo_l1: opp10 {
 134           opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>;
 135         };
 136       };
 137     };
 138
 139   - |
 140
 141     // Example 2 (rpm power domain controller and OPP table):
 142
 143     rpmpd: power-controller {
 144       compatible = "qcom,msm8996-rpmpd";
 145       #power-domain-cells = <1>;
 146       operating-points-v2 = <&rpmpd_opp_table>;
 147
 148       rpmpd_opp_table: opp-table {
 149         compatible = "operating-points-v2";
 150
 151         rpmpd_opp_low: opp1 {
 152           opp-level = <1>;
 153         };
 154
 155         rpmpd_opp_ret: opp2 {
 156           opp-level = <2>;
 157         };
 158
 159         rpmpd_opp_svs: opp3 {
 160           opp-level = <3>;
 161         };
 162
 163         rpmpd_opp_normal: opp4 {
 164           opp-level = <4>;
 165         };
 166
 167         rpmpd_opp_high: opp5 {
 168           opp-level = <5>;
 169         };
 170
 171         rpmpd_opp_turbo: opp6 {
 172           opp-level = <6>;
 173         };
 174       };
 175     };
 176
 177   - |
 178
 179     // Example 3 (Client/Consumer device using OPP table):
 180
 181     leaky-device0@12350000 {
 182       compatible = "foo,i-leak-current";
 183       reg = <0x12350000 0x1000>;
 184       power-domains = <&rpmhpd 0>;
 185       operating-points-v2 = <&leaky_opp_table>;
 186     };
 187
 188     leaky_opp_table: opp-table {
 189       compatible = "operating-points-v2";
 190       opp1 {
 191         opp-hz = /bits/ 64 <144000>;
 192         required-opps = <&rpmhpd_opp_low>;
 193       };
 194
 195       opp2 {
 196         opp-hz = /bits/ 64 <400000>;
 197         required-opps = <&rpmhpd_opp_ret>;
 198       };
 199
 200       opp3 {
 201         opp-hz = /bits/ 64 <20000000>;
 202         required-opps = <&rpmpd_opp_svs>;
 203       };
 204
 205       opp4 {
 206         opp-hz = /bits/ 64 <25000000>;
 207         required-opps = <&rpmpd_opp_normal>;
 208       };
 209     };
 210 ...