Based on kernel version 6.2.16
. Page generated on 2023-08-29 08:28 EST
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 | Qualcomm Resource Power Manager (RPM) This driver is used to interface with the Resource Power Manager (RPM) found in various Qualcomm platforms. The RPM allows each component in the system to vote for state of the system resources, such as clocks, regulators and bus frequencies. - compatible: Usage: required Value type: <string> Definition: must be one of: "qcom,rpm-apq8064" "qcom,rpm-msm8660" "qcom,rpm-msm8960" "qcom,rpm-ipq8064" "qcom,rpm-mdm9615" - reg: Usage: required Value type: <prop-encoded-array> Definition: base address and size of the RPM's message ram - interrupts: Usage: required Value type: <prop-encoded-array> Definition: three entries specifying the RPM's: 1. acknowledgement interrupt 2. error interrupt 3. wakeup interrupt - interrupt-names: Usage: required Value type: <string-array> Definition: must be the three strings "ack", "err" and "wakeup", in order - qcom,ipc: Usage: required Value type: <prop-encoded-array> Definition: three entries specifying the outgoing ipc bit used for signaling the RPM: - phandle to a syscon node representing the apcs registers - u32 representing offset to the register within the syscon - u32 representing the ipc bit within the register = SUBNODES The RPM exposes resources to its subnodes. The below bindings specify the set of valid subnodes that can operate on these resources. == Regulators Regulator nodes are identified by their compatible: - compatible: Usage: required Value type: <string> Definition: must be one of: "qcom,rpm-pm8058-regulators" "qcom,rpm-pm8901-regulators" "qcom,rpm-pm8921-regulators" "qcom,rpm-pm8018-regulators" "qcom,rpm-smb208-regulators" - vdd_l0_l1_lvs-supply: - vdd_l2_l11_l12-supply: - vdd_l3_l4_l5-supply: - vdd_l6_l7-supply: - vdd_l8-supply: - vdd_l9-supply: - vdd_l10-supply: - vdd_l13_l16-supply: - vdd_l14_l15-supply: - vdd_l17_l18-supply: - vdd_l19_l20-supply: - vdd_l21-supply: - vdd_l22-supply: - vdd_l23_l24_l25-supply: - vdd_ncp-supply: - vdd_s0-supply: - vdd_s1-supply: - vdd_s2-supply: - vdd_s3-supply: - vdd_s4-supply: Usage: optional (pm8058 only) Value type: <phandle> Definition: reference to regulator supplying the input pin, as described in the data sheet - lvs0_in-supply: - lvs1_in-supply: - lvs2_in-supply: - lvs3_in-supply: - mvs_in-supply: - vdd_l0-supply: - vdd_l1-supply: - vdd_l2-supply: - vdd_l3-supply: - vdd_l4-supply: - vdd_l5-supply: - vdd_l6-supply: - vdd_s0-supply: - vdd_s1-supply: - vdd_s2-supply: - vdd_s3-supply: - vdd_s4-supply: Usage: optional (pm8901 only) Value type: <phandle> Definition: reference to regulator supplying the input pin, as described in the data sheet - vdd_l1_l2_l12_l18-supply: - vdd_l3_l15_l17-supply: - vdd_l4_l14-supply: - vdd_l5_l8_l16-supply: - vdd_l6_l7-supply: - vdd_l9_l11-supply: - vdd_l10_l22-supply: - vdd_l21_l23_l29-supply: - vdd_l24-supply: - vdd_l25-supply: - vdd_l26-supply: - vdd_l27-supply: - vdd_l28-supply: - vdd_ncp-supply: - vdd_s1-supply: - vdd_s2-supply: - vdd_s4-supply: - vdd_s5-supply: - vdd_s6-supply: - vdd_s7-supply: - vdd_s8-supply: - vin_5vs-supply: - vin_lvs1_3_6-supply: - vin_lvs2-supply: - vin_lvs4_5_7-supply: Usage: optional (pm8921 only) Value type: <phandle> Definition: reference to regulator supplying the input pin, as described in the data sheet - vin_lvs1-supply: - vdd_l7-supply: - vdd_l8-supply: - vdd_l9_l10_l11_l12-supply: Usage: optional (pm8018 only) Value type: <phandle> Definition: reference to regulator supplying the input pin, as described in the data sheet The regulator node houses sub-nodes for each regulator within the device. Each sub-node is identified using the node's name, with valid values listed for each of the pmics below. pm8058: l0, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20, l21, l22, l23, l24, l25, s0, s1, s2, s3, s4, lvs0, lvs1, ncp pm8901: l0, l1, l2, l3, l4, l5, l6, s0, s1, s2, s3, s4, lvs0, lvs1, lvs2, lvs3, mvs pm8921: s1, s2, s3, s4, s7, s8, l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l14, l15, l16, l17, l18, l21, l22, l23, l24, l25, l26, l27, l28, l29, lvs1, lvs2, lvs3, lvs4, lvs5, lvs6, lvs7, usb-switch, hdmi-switch, ncp pm8018: s1, s2, s3, s4, s5, , l1, l2, l3, l4, l5, l6, l7, l8, l9, l10, l11, l12, l14, lvs1 smb208: s1a, s1b, s2a, s2b The content of each sub-node is defined by the standard binding for regulators - see regulator.txt - with additional custom properties described below: === Switch-mode Power Supply regulator custom properties - bias-pull-down: Usage: optional Value type: <empty> Definition: enable pull down of the regulator when inactive - qcom,switch-mode-frequency: Usage: required Value type: <u32> Definition: Frequency (Hz) of the switch-mode power supply; must be one of: 19200000, 9600000, 6400000, 4800000, 3840000, 3200000, 2740000, 2400000, 2130000, 1920000, 1750000, 1600000, 1480000, 1370000, 1280000, 1200000 - qcom,force-mode: Usage: optional (default if no other qcom,force-mode is specified) Value type: <u32> Definition: indicates that the regulator should be forced to a particular mode, valid values are: QCOM_RPM_FORCE_MODE_NONE - do not force any mode QCOM_RPM_FORCE_MODE_LPM - force into low power mode QCOM_RPM_FORCE_MODE_HPM - force into high power mode QCOM_RPM_FORCE_MODE_AUTO - allow regulator to automatically select its own mode based on realtime current draw, only for: pm8921 smps and ftsmps - qcom,power-mode-hysteretic: Usage: optional Value type: <empty> Definition: select that the power supply should operate in hysteretic mode, instead of the default pwm mode === Low-dropout regulator custom properties - bias-pull-down: Usage: optional Value type: <empty> Definition: enable pull down of the regulator when inactive - qcom,force-mode: Usage: optional Value type: <u32> Definition: indicates that the regulator should not be forced to any particular mode, valid values are: QCOM_RPM_FORCE_MODE_NONE - do not force any mode QCOM_RPM_FORCE_MODE_LPM - force into low power mode QCOM_RPM_FORCE_MODE_HPM - force into high power mode QCOM_RPM_FORCE_MODE_BYPASS - set regulator to use bypass mode, i.e. to act as a switch and not regulate, only for: pm8921 pldo, nldo and nldo1200 === Negative Charge Pump custom properties - qcom,switch-mode-frequency: Usage: required Value type: <u32> Definition: Frequency (Hz) of the switch mode power supply; must be one of: 19200000, 9600000, 6400000, 4800000, 3840000, 3200000, 2740000, 2400000, 2130000, 1920000, 1750000, 1600000, 1480000, 1370000, 1280000, 1200000 = EXAMPLE #include <dt-bindings/mfd/qcom-rpm.h> rpm@108000 { compatible = "qcom,rpm-msm8960"; reg = <0x108000 0x1000>; qcom,ipc = <&apcs 0x8 2>; interrupts = <0 19 0>, <0 21 0>, <0 22 0>; interrupt-names = "ack", "err", "wakeup"; regulators { compatible = "qcom,rpm-pm8921-regulators"; vdd_l1_l2_l12_l18-supply = <&pm8921_s4>; s1 { regulator-min-microvolt = <1225000>; regulator-max-microvolt = <1225000>; bias-pull-down; qcom,switch-mode-frequency = <3200000>; }; pm8921_s4: s4 { regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; qcom,switch-mode-frequency = <1600000>; bias-pull-down; qcom,force-mode = <QCOM_RPM_FORCE_MODE_AUTO>; }; }; }; |