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