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([81.56.18.151]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-492203c0801sm200181015e9.10.2026.06.15.00.19.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 15 Jun 2026 00:19:26 -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 , Liam Girdwood , Mark Brown , Linus Walleij , Val Packett , Julien Massot , Louis-Alexis Eyraud , Fabien Parent , Akari Tsuyukusa , 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 v7 3/9] regulator: dt-bindings: Add MediaTek MT6392 PMIC Date: Mon, 15 Jun 2026 09:16:09 +0200 Message-ID: <20260615071836.362883-4-l.scorcia@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260615071836.362883-1-l.scorcia@gmail.com> References: <20260615071836.362883-1-l.scorcia@gmail.com> Precedence: bulk X-Mailing-List: linux-pm@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 | 234 ++++++++++++++++++ .../regulator/mediatek,mt6392-regulator.h | 24 ++ 2 files changed, 258 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..197041df4ba1 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6392-regulator.yaml @@ -0,0 +1,234 @@ +# 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 + +maintainers: + - Luca Leonardo Scorcia + +description: + 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: + compatible: + items: + - const: mediatek,mt6392-regulator + + 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 + $ref: regulator.yaml# + properties: + regulator-allowed-modes: + description: | + BUCK regulators can set regulator-initial-mode and regulator-allowed-modes to + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h + items: + enum: [0, 1] + unevaluatedProperties: false + + "^v(adc18|camio|cn18|io18|xo22|m25|aud28|io28|rtc|usb)$": + 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 + +required: + - compatible + +additionalProperties: false + +examples: + - | + #include + + regulators { + compatible = "mediatek,mt6392-regulator"; + + mt6392_vproc_reg: vproc { + regulator-min-microvolt = < 700000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vsys_reg: vsys { + regulator-min-microvolt = <1400000>; + regulator-max-microvolt = <2987500>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcore_reg: vcore { + regulator-min-microvolt = < 700000>; + regulator-max-microvolt = <1350000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vxo22_reg: vxo22 { + regulator-min-microvolt = <2200000>; + regulator-max-microvolt = <2200000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vaud22_reg: vaud22 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2200000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcama_reg: vcama { + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + }; + + mt6392_vaud28_reg: vaud28 { + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vadc18_reg: vadc18 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcn35_reg: vcn35 { + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3600000>; + }; + + mt6392_vio28_reg: vio28 { + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vusb_reg: vusb { + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vmc_reg: vmc { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + + mt6392_vmch_reg: vmch { + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-boot-on; + }; + + mt6392_vemc3v3_reg: vemc3v3 { + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + }; + + mt6392_vgp1_reg: vgp1 { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3300000>; + }; + + mt6392_vgp2_reg: vgp2 { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3300000>; + }; + + mt6392_vcn18_reg: vcn18 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + mt6392_vcamaf_reg: vcamaf { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3300000>; + }; + + mt6392_vm_reg: vm { + regulator-min-microvolt = <1240000>; + regulator-max-microvolt = <1390000>; + }; + + mt6392_vio18_reg: vio18 { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + regulator-boot-on; + }; + + mt6392_vcamd_reg: vcamd { + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1800000>; + }; + + mt6392_vcamio_reg: vcamio { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + }; + + mt6392_vm25_reg: vm25 { + regulator-min-microvolt = <2500000>; + regulator-max-microvolt = <2500000>; + }; + + mt6392_vefuse_reg: vefuse { + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <2000000>; + }; + }; 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