164 lines
5.3 KiB
YAML
164 lines
5.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/qcom,rpmh-regulator.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Qualcomm Technologies, Inc. RPMh Regulators
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maintainers:
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- David Collins <collinsd@codeaurora.org>
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description: |
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rpmh-regulator devices support PMIC regulator management via the Voltage
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Regulator Manager (VRM) and Oscillator Buffer (XOB) RPMh accelerators.
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The APPS processor communicates with these hardware blocks via a
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Resource State Coordinator (RSC) using command packets. The VRM allows
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changing three parameters for a given regulator, enable state, output
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voltage, and operating mode. The XOB allows changing only a single
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parameter for a given regulator, its enable state. Despite its name,
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the XOB is capable of controlling the enable state of any PMIC peripheral.
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It is used for clock buffers, low-voltage switches, and LDO/SMPS regulators
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which have a fixed voltage and mode.
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=======================
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Required Node Structure
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=======================
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RPMh regulators must be described in two levels of device nodes. The first
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level describes the PMIC containing the regulators and must reside within an
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RPMh device node. The second level describes each regulator within the PMIC
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which is to be used on the board. Each of these regulators maps to a single
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RPMh resource.
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The names used for regulator nodes must match those supported by a given
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PMIC. Supported regulator node names are
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For PM6150, smps1 - smps5, ldo1 - ldo19
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For PM6150L, smps1 - smps8, ldo1 - ldo11, bob
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For PM7325, smps1 - smps8, ldo1 - ldo19
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For PM8005, smps1 - smps4
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For PM8009, smps1 - smps2, ldo1 - ldo7
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For PM8150, smps1 - smps10, ldo1 - ldo18
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For PM8150L, smps1 - smps8, ldo1 - ldo11, bob, flash, rgb
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For PM8350, smps1 - smps12, ldo1 - ldo10
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For PM8350C, smps1 - smps10, ldo1 - ldo13, bob
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For PM8998, smps1 - smps13, ldo1 - ldo28, lvs1 - lvs2
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For PMI8998, bob
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For PMR735A, smps1 - smps3, ldo1 - ldo7
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For PMX55, smps1 - smps7, ldo1 - ldo16
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properties:
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compatible:
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enum:
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- qcom,pm6150-rpmh-regulators
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- qcom,pm6150l-rpmh-regulators
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- qcom,pm7325-rpmh-regulators
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- qcom,pm8005-rpmh-regulators
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- qcom,pm8009-rpmh-regulators
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- qcom,pm8009-1-rpmh-regulators
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- qcom,pm8150-rpmh-regulators
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- qcom,pm8150l-rpmh-regulators
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- qcom,pm8350-rpmh-regulators
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- qcom,pm8350c-rpmh-regulators
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- qcom,pm8998-rpmh-regulators
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- qcom,pmi8998-rpmh-regulators
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- qcom,pmm8155au-rpmh-regulators
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- qcom,pmr735a-rpmh-regulators
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- qcom,pmx55-rpmh-regulators
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qcom,pmic-id:
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description: |
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RPMh resource name suffix used for the regulators found
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on this PMIC.
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$ref: /schemas/types.yaml#/definitions/string
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enum: [a, b, c, d, e, f]
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qcom,always-wait-for-ack:
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description: |
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Boolean flag which indicates that the application processor
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must wait for an ACK or a NACK from RPMh for every request
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sent for this regulator including those which are for a
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strictly lower power state.
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$ref: /schemas/types.yaml#/definitions/flag
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vdd-flash-supply:
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description: Input supply phandle of flash.
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vdd-rgb-supply:
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description: Input supply phandle of rgb.
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vin-lvs-1-2-supply:
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description: Input supply phandle of one or more regulators.
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vdd-bob-supply:
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description: BOB regulator parent supply phandle.
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bob:
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type: object
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$ref: "regulator.yaml#"
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description: BOB regulator node.
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patternProperties:
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"^vdd-s([0-9]+)-supply$":
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description: Input supply phandle(s) of one or more regulators.
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"^vdd-(l[0-9]+[-]){1,5}supply$":
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description: Input supply phandle(s) of one or more regulators.
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"^(smps|ldo|lvs)[0-9]+$":
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type: object
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$ref: "regulator.yaml#"
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description: smps/ldo regulator nodes(s).
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additionalProperties: false
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required:
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- compatible
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- qcom,pmic-id
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examples:
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- |
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#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
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pm8998-rpmh-regulators {
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compatible = "qcom,pm8998-rpmh-regulators";
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qcom,pmic-id = "a";
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vdd-l7-l12-l14-l15-supply = <&pm8998_s5>;
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smps2 {
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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};
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ldo7 {
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
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regulator-allowed-modes =
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<RPMH_REGULATOR_MODE_LPM
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RPMH_REGULATOR_MODE_HPM>;
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regulator-allow-set-load;
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};
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lvs1 {
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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};
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};
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pmi8998-rpmh-regulators {
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compatible = "qcom,pmi8998-rpmh-regulators";
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qcom,pmic-id = "b";
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bob {
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regulator-min-microvolt = <3312000>;
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regulator-max-microvolt = <3600000>;
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regulator-allowed-modes =
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<RPMH_REGULATOR_MODE_AUTO
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RPMH_REGULATOR_MODE_HPM>;
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regulator-initial-mode = <RPMH_REGULATOR_MODE_AUTO>;
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};
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};
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...
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