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Date: Tue, 11 Jan 2022 18:19:50 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To: Rob Herring <robh@...nel.org>
Cc: Lee Jones <lee.jones@...aro.org>,
Chanwoo Choi <cw00.choi@...sung.com>,
Sebastian Reichel <sre@...nel.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH 4/4] dt-bindings: mfd: maxim,max14577: convert to dtschema
On 10/01/2022 20:44, Rob Herring wrote:
> On Wed, Dec 29, 2021 at 03:15:24PM +0100, Krzysztof Kozlowski wrote:
>> Convert the MFD part of Maxim MAX14577/MAX77836 MUIC to DT schema
>> format. The example DTS was copied from existing DTS
>> (exynos3250-rinato.dts), so keep the license as GPL-2.0-only.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
>> ---
>> .../devicetree/bindings/mfd/max14577.txt | 147 -------------
>> .../bindings/mfd/maxim,max14577.yaml | 195 ++++++++++++++++++
>> MAINTAINERS | 2 +-
>> 3 files changed, 196 insertions(+), 148 deletions(-)
>> delete mode 100644 Documentation/devicetree/bindings/mfd/max14577.txt
>> create mode 100644 Documentation/devicetree/bindings/mfd/maxim,max14577.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/mfd/max14577.txt b/Documentation/devicetree/bindings/mfd/max14577.txt
>> deleted file mode 100644
>> index be11943a0560..000000000000
>> --- a/Documentation/devicetree/bindings/mfd/max14577.txt
>> +++ /dev/null
>> @@ -1,147 +0,0 @@
>> -Maxim MAX14577/77836 Multi-Function Device
>> -
>> -MAX14577 is a Multi-Function Device with Micro-USB Interface Circuit, Li+
>> -Battery Charger and SFOUT LDO output for powering USB devices. It is
>> -interfaced to host controller using I2C.
>> -
>> -MAX77836 additionally contains PMIC (with two LDO regulators) and Fuel Gauge.
>> -For the description of Fuel Gauge low SOC alert interrupt see:
>> -../power/supply/max17040_battery.txt
>> -
>> -
>> -Required properties:
>> -- compatible : Must be "maxim,max14577" or "maxim,max77836".
>> -- reg : I2C slave address for the max14577 chip (0x25 for max14577/max77836)
>> -- interrupts : IRQ line for the chip.
>> -
>> -
>> -Required nodes:
>> - - charger :
>> - Node for configuring the charger driver.
>> - Required properties:
>> - - compatible : "maxim,max14577-charger"
>> - or "maxim,max77836-charger"
>> - - maxim,fast-charge-uamp : Current in uA for Fast Charge;
>> - Valid values:
>> - - for max14577: 90000 - 950000;
>> - - for max77836: 45000 - 475000;
>> - - maxim,eoc-uamp : Current in uA for End-Of-Charge mode;
>> - Valid values:
>> - - for max14577: 50000 - 200000;
>> - - for max77836: 5000 - 100000;
>> - - maxim,ovp-uvolt : OverVoltage Protection Threshold in uV;
>> - In an overvoltage condition, INT asserts and charging
>> - stops. Valid values:
>> - - 6000000, 6500000, 7000000, 7500000;
>> - - maxim,constant-uvolt : Battery Constant Voltage in uV;
>> - Valid values:
>> - - 4000000 - 4280000 (step by 20000);
>> - - 4350000;
>> -
>> -
>> -Optional nodes:
>> -- max14577-muic/max77836-muic :
>> - Node used only by extcon consumers.
>> - Required properties:
>> - - compatible : "maxim,max14577-muic" or "maxim,max77836-muic"
>> -
>> -- regulators :
>> - Required properties:
>> - - compatible : "maxim,max14577-regulator"
>> - or "maxim,max77836-regulator"
>> -
>> - May contain a sub-node per regulator from the list below. Each
>> - sub-node should contain the constraints and initialization information
>> - for that regulator. See regulator.txt for a description of standard
>> - properties for these sub-nodes.
>> -
>> - List of valid regulator names:
>> - - for max14577: CHARGER, SAFEOUT.
>> - - for max77836: CHARGER, SAFEOUT, LDO1, LDO2.
>> -
>> - The SAFEOUT is a fixed voltage regulator so there is no need to specify
>> - voltages for it.
>> -
>> -
>> -Example:
>> -
>> -#include <dt-bindings/interrupt-controller/irq.h>
>> -
>> -max14577@25 {
>> - compatible = "maxim,max14577";
>> - reg = <0x25>;
>> - interrupt-parent = <&gpx1>;
>> - interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
>> -
>> - muic: max14577-muic {
>> - compatible = "maxim,max14577-muic";
>> - };
>> -
>> - regulators {
>> - compatible = "maxim,max14577-regulator";
>> -
>> - SAFEOUT {
>> - regulator-name = "SAFEOUT";
>> - };
>> - CHARGER {
>> - regulator-name = "CHARGER";
>> - regulator-min-microamp = <90000>;
>> - regulator-max-microamp = <950000>;
>> - regulator-boot-on;
>> - };
>> - };
>> -
>> - charger {
>> - compatible = "maxim,max14577-charger";
>> -
>> - maxim,constant-uvolt = <4350000>;
>> - maxim,fast-charge-uamp = <450000>;
>> - maxim,eoc-uamp = <50000>;
>> - maxim,ovp-uvolt = <6500000>;
>> - };
>> -};
>> -
>> -
>> -max77836@25 {
>> - compatible = "maxim,max77836";
>> - reg = <0x25>;
>> - interrupt-parent = <&gpx1>;
>> - interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
>> -
>> - muic: max77836-muic {
>> - compatible = "maxim,max77836-muic";
>> - };
>> -
>> - regulators {
>> - compatible = "maxim,max77836-regulator";
>> -
>> - SAFEOUT {
>> - regulator-name = "SAFEOUT";
>> - };
>> - CHARGER {
>> - regulator-name = "CHARGER";
>> - regulator-min-microamp = <90000>;
>> - regulator-max-microamp = <950000>;
>> - regulator-boot-on;
>> - };
>> - LDO1 {
>> - regulator-name = "LDO1";
>> - regulator-min-microvolt = <2700000>;
>> - regulator-max-microvolt = <2700000>;
>> - };
>> - LDO2 {
>> - regulator-name = "LDO2";
>> - regulator-min-microvolt = <800000>;
>> - regulator-max-microvolt = <3950000>;
>> - };
>> - };
>> -
>> - charger {
>> - compatible = "maxim,max77836-charger";
>> -
>> - maxim,constant-uvolt = <4350000>;
>> - maxim,fast-charge-uamp = <225000>;
>> - maxim,eoc-uamp = <7500>;
>> - maxim,ovp-uvolt = <6500000>;
>> - };
>> -};
>> diff --git a/Documentation/devicetree/bindings/mfd/maxim,max14577.yaml b/Documentation/devicetree/bindings/mfd/maxim,max14577.yaml
>> new file mode 100644
>> index 000000000000..512fd671595c
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/mfd/maxim,max14577.yaml
>> @@ -0,0 +1,195 @@
>> +# SPDX-License-Identifier: GPL-2.0-only
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/mfd/maxim,max14577.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Maxim MAX14577/MAX77836 MicroUSB and Companion Power Management IC
>> +
>> +maintainers:
>> + - Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
>> +
>> +description: |
>> + This is a part of device tree bindings for Maxim MAX14577/MAX77836 MicroUSB
>> + Integrated Circuit (MUIC).
>> +
>> + The Maxim MAX14577 is a MicroUSB and Companion Power Management IC which
>> + includes voltage safeout regulators, charger and MicroUSB management IC.
>> +
>> + The Maxim MAX77836 is a MicroUSB and Companion Power Management IC which
>> + includes voltage safeout and LDO regulators, charger, fuel-gauge and MicroUSB
>> + management IC.
>> +
>> +properties:
>> + compatible:
>> + enum:
>> + - maxim,max14577
>> + - maxim,max77836
>> +
>> + interrupts:
>> + maxItems: 1
>> +
>> + reg:
>> + maxItems: 1
>> +
>> + wakeup-source: true
>> +
>> + charger:
>> + $ref: ../power/supply/maxim,max14577.yaml
>
> /schemas/power/...
>
> With those fixed,
>
> Reviewed-by: Rob Herring <robh@...nel.org>
Thanks, fixed also regulator reference below and the regulator bindings
as in my other Maxim patches.
Best regards,
Krzysztof
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