Commit 7255f98d authored by satya priya's avatar satya priya Committed by Mark Brown

regulator: Convert RPMh regulator bindings to YAML

Convert RPMh regulator bindings from .txt to .yaml format.
Signed-off-by: default avatarsatya priya <skakit@codeaurora.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1617192339-3760-5-git-send-email-skakit@codeaurora.orgSigned-off-by: default avatarMark Brown <broonie@kernel.org>
parent c4e5aa3d
Qualcomm Technologies, Inc. RPMh Regulators
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:
PM8005: smps1 - smps4
PM8009: smps1 - smps2, ldo1 - ldo7
PM8150: smps1 - smps10, ldo1 - ldo18
PM8150L: smps1 - smps8, ldo1 - ldo11, bob, flash, rgb
PM8350: smps1 - smps12, ldo1 - ldo10,
PM8350C: smps1 - smps10, ldo1 - ldo13, bob
PM8998: smps1 - smps13, ldo1 - ldo28, lvs1 - lvs2
PMI8998: bob
PM6150: smps1 - smps5, ldo1 - ldo19
PM6150L: smps1 - smps8, ldo1 - ldo11, bob
PMX55: smps1 - smps7, ldo1 - ldo16
========================
First Level Nodes - PMIC
========================
- compatible
Usage: required
Value type: <string>
Definition: Must be one of below:
"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,pmc8180-rpmh-regulators"
"qcom,pmc8180c-rpmh-regulators"
"qcom,pmi8998-rpmh-regulators"
"qcom,pm6150-rpmh-regulators"
"qcom,pm6150l-rpmh-regulators"
"qcom,pmx55-rpmh-regulators"
- qcom,pmic-id
Usage: required
Value type: <string>
Definition: RPMh resource name suffix used for the regulators found on
this PMIC. Typical values: "a", "b", "c", "d", "e", "f".
- vdd-s1-supply
- vdd-s2-supply
- vdd-s3-supply
- vdd-s4-supply
Usage: optional (PM8998 and PM8005 only)
Value type: <phandle>
Definition: phandle of the parent supply regulator of one or more of the
regulators for this PMIC.
- vdd-s5-supply
- vdd-s6-supply
- vdd-s7-supply
- vdd-s8-supply
- vdd-s9-supply
- vdd-s10-supply
- vdd-s11-supply
- vdd-s12-supply
- vdd-s13-supply
- vdd-l1-l27-supply
- vdd-l2-l8-l17-supply
- vdd-l3-l11-supply
- vdd-l4-l5-supply
- vdd-l6-supply
- vdd-l7-l12-l14-l15-supply
- vdd-l9-supply
- vdd-l10-l23-l25-supply
- vdd-l13-l19-l21-supply
- vdd-l16-l28-supply
- vdd-l18-l22-supply
- vdd-l20-l24-supply
- vdd-l26-supply
- vin-lvs-1-2-supply
Usage: optional (PM8998 only)
Value type: <phandle>
Definition: phandle of the parent supply regulator of one or more of the
regulators for this PMIC.
- vdd-bob-supply
Usage: optional (PMI8998 only)
Value type: <phandle>
Definition: BOB regulator parent supply phandle
===============================
Second Level Nodes - Regulators
===============================
- qcom,always-wait-for-ack
Usage: optional
Value type: <empty>
Definition: 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.
Other properties defined in Documentation/devicetree/bindings/regulator/regulator.txt
may also be used. regulator-initial-mode and regulator-allowed-modes may be
specified for VRM regulators using mode values from
include/dt-bindings/regulator/qcom,rpmh-regulator.h. regulator-allow-bypass
may be specified for BOB type regulators managed via VRM.
regulator-allow-set-load may be specified for LDO type regulators managed via
VRM.
========
Examples
========
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
&apps_rsc {
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>;
};
pm8998_s5: smps5 {
regulator-min-microvolt = <1904000>;
regulator-max-microvolt = <2040000>;
};
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>;
};
};
};
# 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 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
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,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>;
};
};
...
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