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Message-Id: <20221005-mt6357-support-v6-6-4f589756befa@baylibre.com> Date: Fri, 25 Nov 2022 16:10:17 +0100 From: Alexandre Mergnat <amergnat@...libre.com> To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Sean Wang <sean.wang@...iatek.com>, Rob Herring <robh+dt@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>, Chen Zhong <chen.zhong@...iatek.com>, Fabien Parent <fabien.parent@...aro.org>, Alessandro Zummo <a.zummo@...ertech.it>, Mark Brown <broonie@...nel.org>, Alexandre Belloni <alexandre.belloni@...tlin.com>, Flora Fu <flora.fu@...iatek.com>, Tianping Fang <tianping.fang@...iatek.com>, Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>, Liam Girdwood <lgirdwood@...il.com>, Dmitry Torokhov <dmitry.torokhov@...il.com> Cc: Mattijs Korpershoek <mkorpershoek@...libre.com>, Alexandre Mergnat <amergnat@...libre.com>, Rob Herring <robh@...nel.org>, AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, linux-rtc@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>, linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org, Fabien Parent <fparent@...libre.com>, linux-input@...r.kernel.org, devicetree@...r.kernel.org, linux-leds@...r.kernel.org Subject: [PATCH v6 06/10] dt-bindings: mfd: mediatek: Add bindings for MT6357 PMIC Currently, almost all MT63XX PMIC are documented mfd/mt6397.txt. Unfortunately, the PMICs haven't always similar HW sub-features. To have a better human readable schema, I chose to make one PMIC schema to match the exact HW capabilities instead of convert mt6397.txt to mediatek,mt63xx.yaml and put a bunch of properties behind "if contain ... then ..." - add interrupt property - change property refs to match with new yaml documentation Signed-off-by: Alexandre Mergnat <amergnat@...libre.com> --- .../devicetree/bindings/mfd/mediatek,mt6357.yaml | 105 +++++++++++++++++++++ 1 file changed, 105 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml new file mode 100644 index 000000000000..2aa8025d1e24 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/mediatek,mt6357.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT6357 PMIC + +maintainers: + - Flora Fu <flora.fu@...iatek.com> + - Alexandre Mergnat <amergnat@...libre.com> + +description: | + MT6357 is a power management system chip containing 5 buck + converters and 29 LDOs. Supported features are audio codec, + USB battery charging, fuel gauge, RTC + + This is a multifunction device with the following sub modules: + - Regulator + - RTC + - Keys + + It is interfaced to host controller using SPI interface by a proprietary hardware + called PMIC wrapper or pwrap. This MFD is a child device of pwrap. + See the following for pwrap node definitions: + Documentation/devicetree/bindings/soc/mediatek/mediatek,pwrap.yaml + +properties: + compatible: + const: mediatek,mt6357 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + "#interrupt-cells": + const: 2 + + regulators: + type: object + $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml + description: + List of MT6357 BUCKs and LDOs regulators. + + rtc: + type: object + $ref: /schemas/rtc/mediatek,mt6397-rtc.yaml + description: + MT6357 Real Time Clock. + + keys: + type: object + $ref: /schemas/input/mediatek,pmic-keys.yaml + description: + MT6357 power and home keys. + +required: + - compatible + - regulators + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + pwrap { + pmic { + compatible = "mediatek,mt6357"; + + interrupt-parent = <&pio>; + interrupts = <145 IRQ_TYPE_LEVEL_HIGH>; + interrupt-controller; + #interrupt-cells = <2>; + + regulators { + mt6357_vproc_reg: buck-vproc { + regulator-name = "vproc"; + regulator-min-microvolt = <518750>; + regulator-max-microvolt = <1312500>; + regulator-ramp-delay = <6250>; + regulator-enable-ramp-delay = <220>; + regulator-always-on; + }; + + // ... + + mt6357_vusb33_reg: ldo-vusb33 { + regulator-name = "vusb33"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3100000>; + regulator-enable-ramp-delay = <264>; + }; + }; + + rtc { + compatible = "mediatek,mt6357-rtc"; + }; + + keys { + compatible = "mediatek,mt6357-keys"; + }; + }; + }; -- b4 0.10.1
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