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1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause2%YAML 1.23---4$id: http://devicetree.org/schemas/regulator/sprd,sc2731-regulator.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Spreadtrum SC2731 Power Management IC regulators8 9maintainers:10 - Orson Zhai <orsonzhai@gmail.com>11 - Baolin Wang <baolin.wang7@gmail.com>12 - Chunyan Zhang <zhang.lyra@gmail.com>13 14description: |15 The SC2731 integrates low-voltage and low quiescent current DCDC/LDO.16 14 LDO and 3 DCDCs are designed for external use. All DCDCs/LDOs have17 their own bypass (power-down) control signals. It is recommended to use18 external tantalum or MLCC ceramic capacitors with these LDOs.19 Valid names for the regulators are:20 BUCK:21 BUCK_CPU0, BUCK_CPU1, BUCK_RF22 LDO:23 LDO_CAMA0, LDO_CAMA1, LDO_CAMD0, LDO_CAMD1, LDO_CAMIO, LDO_CAMMOT,24 LDO_CON, LDO_EMMCCORE, LDO_SDCORE, LDO_SDIO, LDO_SRAM, LDO_USB33,25 LDO_VLDO, LDO_WIFIPA26 27properties:28 compatible:29 const: sprd,sc2731-regulator30 31patternProperties:32 "^BUCK_(CPU[0-1]|RF)$":33 type: object34 $ref: regulator.yaml#35 unevaluatedProperties: false36 37 "^LDO_(CAM(A0|A1|D0|D1|IO|MOT)|CON|EMMCCORE|SD(CORE|IO)|SRAM|USB33|VLDO|WIFIPA)$":38 type: object39 $ref: regulator.yaml#40 unevaluatedProperties: false41 42required:43 - compatible44 45additionalProperties: false46 47examples:48 - |49 regulators {50 compatible = "sprd,sc2731-regulator";51 52 BUCK_CPU0 {53 regulator-name = "vddarm0";54 regulator-min-microvolt = <400000>;55 regulator-max-microvolt = <1996875>;56 regulator-ramp-delay = <25000>;57 regulator-always-on;58 };59 60 LDO_CAMA0 {61 regulator-name = "vddcama0";62 regulator-min-microvolt = <1200000>;63 regulator-max-microvolt = <3750000>;64 regulator-enable-ramp-delay = <100>;65 };66 };67...68