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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#
title: Qualcomm Technologies, Inc. RPMh Regulators
maintainers:
- David Collins <collinsd@codeaurora.org>
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 PM6150, smps1 - smps5, ldo1 - ldo19
For PM6150L, smps1 - smps8, ldo1 - ldo11, bob
For PM6350, smps1 - smps5, ldo1 - ldo22
For PM7325, smps1 - smps8, ldo1 - ldo19
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 PMR735A, smps1 - smps3, ldo1 - ldo7
For PMX55, smps1 - smps7, ldo1 - ldo16
properties:
compatible:
enum:
- qcom,pm6150-rpmh-regulators
- qcom,pm6150l-rpmh-regulators
- qcom,pm6350-rpmh-regulators
- qcom,pm7325-rpmh-regulators
- 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,pmm8155au-rpmh-regulators
- qcom,pmr735a-rpmh-regulators
- qcom,pmx55-rpmh-regulators
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]
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
vdd-flash-supply:
description: Input supply phandle of flash.
vdd-rgb-supply:
description: Input supply phandle of rgb.
vin-lvs-1-2-supply:
description: Input supply phandle of one or more regulators.
vdd-bob-supply:
description: BOB regulator parent supply phandle.
bob:
type: object
$ref: "regulator.yaml#"
description: BOB regulator node.
patternProperties:
"^vdd-s([0-9]+)-supply$":
description: Input supply phandle(s) of one or more regulators.
"^vdd-(l[0-9]+[-]){1,5}supply$":
description: Input supply phandle(s) of one or more regulators.
"^(smps|ldo|lvs)[0-9]+$":
type: object
$ref: "regulator.yaml#"
description: smps/ldo regulator nodes(s).
additionalProperties: false
required:
- compatible
- qcom,pmic-id
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>;
};
};
...
|
