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Mon, 30 Mar 2026 01:35:20 -0700 (PDT) From: Luca Leonardo Scorcia To: linux-mediatek@lists.infradead.org Cc: Luca Leonardo Scorcia , Dmitry Torokhov , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sen Chu , Sean Wang , Macpaul Lin , Lee Jones , Matthias Brugger , AngeloGioacchino Del Regno , Linus Walleij , Liam Girdwood , Mark Brown , Julien Massot , Gary Bisson , Louis-Alexis Eyraud , Val Packett , Fabien Parent , Chen Zhong , linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org Subject: [PATCH v4 3/9] regulator: dt-bindings: Add MediaTek MT6392 PMIC Date: Mon, 30 Mar 2026 09:29:37 +0100 Message-ID: <20260330083429.359819-4-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260330083429.359819-1-l.scorcia@gmail.com> References: <20260330083429.359819-1-l.scorcia@gmail.com> Precedence: bulk X-Mailing-List: linux-input@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add bindings for the regulators found in the MediaTek MT6392 PMIC, usually found in board designs using the MediaTek MT8516/MT8167 SoCs. Signed-off-by: Luca Leonardo Scorcia --- .../regulator/mediatek,mt6392-regulator.yaml | 74 +++++++++++++++++++ .../regulator/mediatek,mt6392-regulator.h | 24 ++++++ 2 files changed, 98 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/mediatek,mt6392-regulator.yaml create mode 100644 include/dt-bindings/regulator/mediatek,mt6392-regulator.h diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6392-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6392-regulator.yaml new file mode 100644 index 000000000000..24fbaef0e717 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6392-regulator.yaml @@ -0,0 +1,74 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/mediatek,mt6392-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT6392 regulator + +description: + Regulator node of the PMIC. This node should under the PMIC's device node. + MT6392 is a power management system chip containing three buck converters and + 23 LDOs. All voltage regulators provided by the PMIC are described as + sub-nodes of this node. + +properties: + vproc-supply: + description: Supply for buck regulator vproc + vcore-supply: + description: Supply for buck regulator vcore + vsys-supply: + description: Supply for buck regulator vsys + avddldo-supply: + description: | + Supply for AVDD LDOs (vm, vio18, vcn18, vcamd, vcamio). According to the data sheet + this is an internal supply derived from vsys. + ldo1-supply: + description: Supply for LDOs group 1 (vaud28, vxo22, vaud22, vadc18, vcama, vrtc) + ldo2-supply: + description: Supply for LDOs group 2 (vcn35, vio28, vmc, vmch, vefuse, vdig18) + ldo3-supply: + description: Supply for LDOs group 3 (vusb, vemc3v3, vcamaf, vgp1, vgp2, vm25) + +patternProperties: + "^v(core|proc|sys)$": + description: Buck regulators + type: object + $ref: regulator.yaml# + properties: + regulator-allowed-modes: + description: | + BUCK regulators can set regulator-initial-mode and regulator-allowed-modes to + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h + items: + enum: [0, 1] + unevaluatedProperties: false + + "^v(adc18|camio|cn18|io18|xo22|m25|aud28|io28|rtc|vusb)$": + description: LDOs with fixed output and mode setting + type: object + $ref: regulator.yaml# + properties: + regulator-allowed-modes: + description: | + LDO regulators can set regulator-initial-mode and regulator-allowed-modes to + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h + items: + enum: [0, 1] + unevaluatedProperties: false + + "^v(cama|dig18)$": + description: LDOs with fixed output without mode setting + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + + "^v(aud22|camaf|camd|cn35|efuse|emc3v3|gp1|gp2|m|mc|mch)$": + description: LDOs with adjustable output + type: object + $ref: regulator.yaml# + properties: + regulator-allowed-modes: false + unevaluatedProperties: false + +additionalProperties: false diff --git a/include/dt-bindings/regulator/mediatek,mt6392-regulator.h b/include/dt-bindings/regulator/mediatek,mt6392-regulator.h new file mode 100644 index 000000000000..8bd1a13faad8 --- /dev/null +++ b/include/dt-bindings/regulator/mediatek,mt6392-regulator.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ + +#ifndef _DT_BINDINGS_REGULATOR_MEDIATEK_MT6392_H_ +#define _DT_BINDINGS_REGULATOR_MEDIATEK_MT6392_H_ + +/* + * Buck mode constants which may be used in devicetree properties (eg. + * regulator-initial-mode, regulator-allowed-modes). + * See the manufacturer's datasheet for more information on these modes. + */ + +#define MT6392_BUCK_MODE_AUTO 0 +#define MT6392_BUCK_MODE_FORCE_PWM 1 + +/* + * LDO mode constants which may be used in devicetree properties (eg. + * regulator-initial-mode, regulator-allowed-modes). + * See the manufacturer's datasheet for more information on these modes. + */ + +#define MT6392_LDO_MODE_NORMAL 0 +#define MT6392_LDO_MODE_LP 1 + +#endif -- 2.43.0