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 enum: 19 - qcom,mdm9607-rpmpd 20 - qcom,msm8226-rpmpd 21 - qcom,msm8909-rpmpd 22 - qcom,msm8916-rpmpd 23 - qcom,msm8939-rpmpd 24 - qcom,msm8953-rpmpd 25 - qcom,msm8976-rpmpd 26 - qcom,msm8994-rpmpd 27 - qcom,msm8996-rpmpd 28 - qcom,msm8998-rpmpd 29 - qcom,qcm2290-rpmpd 30 - qcom,qcs404-rpmpd 31 - qcom,sa8540p-rpmhpd 32 - qcom,sdm660-rpmpd 33 - qcom,sc7180-rpmhpd 34 - qcom,sc7280-rpmhpd 35 - qcom,sc8180x-rpmhpd 36 - qcom,sc8280xp-rpmhpd 37 - qcom,sdm845-rpmhpd 38 - qcom,sdx55-rpmhpd 39 - qcom,sdx65-rpmhpd 40 - qcom,sm6115-rpmpd 41 - qcom,sm6125-rpmpd 42 - qcom,sm6350-rpmhpd 43 - qcom,sm8150-rpmhpd 44 - qcom,sm8250-rpmhpd 45 - qcom,sm8350-rpmhpd 46 - qcom,sm8450-rpmhpd 47 48 '#power-domain-cells': 49 const: 1 50 51 operating-points-v2: true 52 53 opp-table: 54 type: object 55 56required: 57 - compatible 58 - '#power-domain-cells' 59 - operating-points-v2 60 61additionalProperties: false 62 63examples: 64 - | 65 66 // Example 1 (rpmh power domain controller and OPP table): 67 68 #include <dt-bindings/power/qcom-rpmpd.h> 69 70 rpmhpd: power-controller { 71 compatible = "qcom,sdm845-rpmhpd"; 72 #power-domain-cells = <1>; 73 operating-points-v2 = <&rpmhpd_opp_table>; 74 75 rpmhpd_opp_table: opp-table { 76 compatible = "operating-points-v2"; 77 78 rpmhpd_opp_ret: opp1 { 79 opp-level = <RPMH_REGULATOR_LEVEL_RETENTION>; 80 }; 81 82 rpmhpd_opp_min_svs: opp2 { 83 opp-level = <RPMH_REGULATOR_LEVEL_MIN_SVS>; 84 }; 85 86 rpmhpd_opp_low_svs: opp3 { 87 opp-level = <RPMH_REGULATOR_LEVEL_LOW_SVS>; 88 }; 89 90 rpmhpd_opp_svs: opp4 { 91 opp-level = <RPMH_REGULATOR_LEVEL_SVS>; 92 }; 93 94 rpmhpd_opp_svs_l1: opp5 { 95 opp-level = <RPMH_REGULATOR_LEVEL_SVS_L1>; 96 }; 97 98 rpmhpd_opp_nom: opp6 { 99 opp-level = <RPMH_REGULATOR_LEVEL_NOM>; 100 }; 101 102 rpmhpd_opp_nom_l1: opp7 { 103 opp-level = <RPMH_REGULATOR_LEVEL_NOM_L1>; 104 }; 105 106 rpmhpd_opp_nom_l2: opp8 { 107 opp-level = <RPMH_REGULATOR_LEVEL_NOM_L2>; 108 }; 109 110 rpmhpd_opp_turbo: opp9 { 111 opp-level = <RPMH_REGULATOR_LEVEL_TURBO>; 112 }; 113 114 rpmhpd_opp_turbo_l1: opp10 { 115 opp-level = <RPMH_REGULATOR_LEVEL_TURBO_L1>; 116 }; 117 }; 118 }; 119 120 - | 121 122 // Example 2 (rpm power domain controller and OPP table): 123 124 rpmpd: power-controller { 125 compatible = "qcom,msm8996-rpmpd"; 126 #power-domain-cells = <1>; 127 operating-points-v2 = <&rpmpd_opp_table>; 128 129 rpmpd_opp_table: opp-table { 130 compatible = "operating-points-v2"; 131 132 rpmpd_opp_low: opp1 { 133 opp-level = <1>; 134 }; 135 136 rpmpd_opp_ret: opp2 { 137 opp-level = <2>; 138 }; 139 140 rpmpd_opp_svs: opp3 { 141 opp-level = <3>; 142 }; 143 144 rpmpd_opp_normal: opp4 { 145 opp-level = <4>; 146 }; 147 148 rpmpd_opp_high: opp5 { 149 opp-level = <5>; 150 }; 151 152 rpmpd_opp_turbo: opp6 { 153 opp-level = <6>; 154 }; 155 }; 156 }; 157 158 - | 159 160 // Example 3 (Client/Consumer device using OPP table): 161 162 leaky-device0@12350000 { 163 compatible = "foo,i-leak-current"; 164 reg = <0x12350000 0x1000>; 165 power-domains = <&rpmhpd 0>; 166 operating-points-v2 = <&leaky_opp_table>; 167 }; 168 169 leaky_opp_table: opp-table { 170 compatible = "operating-points-v2"; 171 opp1 { 172 opp-hz = /bits/ 64 <144000>; 173 required-opps = <&rpmhpd_opp_low>; 174 }; 175 176 opp2 { 177 opp-hz = /bits/ 64 <400000>; 178 required-opps = <&rpmhpd_opp_ret>; 179 }; 180 181 opp3 { 182 opp-hz = /bits/ 64 <20000000>; 183 required-opps = <&rpmpd_opp_svs>; 184 }; 185 186 opp4 { 187 opp-hz = /bits/ 64 <25000000>; 188 required-opps = <&rpmpd_opp_normal>; 189 }; 190 }; 191... 192