From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
To: Luca Leonardo Scorcia <l.scorcia@gmail.com>,
linux-mediatek@lists.infradead.org
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Sen Chu <sen.chu@mediatek.com>,
Sean Wang <sean.wang@mediatek.com>,
Macpaul Lin <macpaul.lin@mediatek.com>,
Lee Jones <lee@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Linus Walleij <linusw@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
Julien Massot <julien.massot@collabora.com>,
Gary Bisson <bisson.gary@gmail.com>,
Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>,
Val Packett <val@packett.cool>,
Fabien Parent <parent.f@gmail.com>,
Chen Zhong <chen.zhong@mediatek.com>,
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: Re: [PATCH v3 3/9] dt-bindings: regulator: Document MediaTek MT6392 PMIC Regulators
Date: Wed, 18 Mar 2026 13:39:14 +0100 [thread overview]
Message-ID: <62b1463b-3d32-4d5c-8af3-f09202f96fb5@collabora.com> (raw)
In-Reply-To: <20260317184507.523060-4-l.scorcia@gmail.com>
Il 17/03/26 19:43, Luca Leonardo Scorcia ha scritto:
> 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 <l.scorcia@gmail.com>
> ---
> .../regulator/mediatek,mt6392-regulator.yaml | 318 ++++++++++++++++++
> .../regulator/mediatek,mt6392-regulator.h | 24 ++
> 2 files changed, 342 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..fa4aad2dcbe8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6392-regulator.yaml
> @@ -0,0 +1,318 @@
> +# 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.
> + All voltage regulators provided by the PMIC are described as sub-nodes of
> + this node.
> +
> +properties:
> + compatible:
> + items:
> + - const: mediatek,mt6392-regulator
> +
> +patternProperties:
> + "^(buck_)?v(core|proc|sys)$":
> + description: Buck regulators
> + type: object
> + $ref: regulator.yaml#
> + properties:
> + regulator-allowed-modes:
> + description: |
> + BUCK regulators can set regulator-initial-mode and regulator-allowed-modes to
> + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h
> + items:
> + enum: [0, 1]
> + unevaluatedProperties: false
> +
> + "^(ldo_)?v(adc18|camio|cn18|io18)$":
There was a discussion a bit of time ago and we decided to drop the "ldo_" and
"buck_" prefix from the regulators.
Can you please drop those?
Cheers,
Angelo
> + description: LDOs with fixed 1.8V output
> + type: object
> + $ref: regulator.yaml#
> + properties:
> + regulator-allowed-modes:
> + description: |
> + LDO regulators can set regulator-initial-mode and regulator-allowed-modes to
> + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h
> + items:
> + enum: [0, 1]
> + unevaluatedProperties: false
> +
> + "^(ldo_)?v(xo22)$":
> + description: LDOs with fixed 2.2V output
> + type: object
> + $ref: regulator.yaml#
> + properties:
> + regulator-allowed-modes:
> + description: |
> + LDO regulators can set regulator-initial-mode and regulator-allowed-modes to
> + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h
> + items:
> + enum: [0, 1]
> + unevaluatedProperties: false
> +
> + "^(ldo_)?v(m25)$":
> + description: LDOs with fixed 2.5V output
> + type: object
> + $ref: regulator.yaml#
> + properties:
> + regulator-allowed-modes:
> + description: |
> + LDO regulators can set regulator-initial-mode and regulator-allowed-modes to
> + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h
> + items:
> + enum: [0, 1]
> + unevaluatedProperties: false
> +
> + "^(ldo_)?v(aud28|io28)$":
> + description: LDOs with fixed 2.8V output w/ mode
> + type: object
> + $ref: regulator.yaml#
> + properties:
> + regulator-allowed-modes:
> + description: |
> + LDO regulators can set regulator-initial-mode and regulator-allowed-modes to
> + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h
> + items:
> + enum: [0, 1]
> + unevaluatedProperties: false
> +
> + "^(ldo_)?v(cama)$":
> + description: LDOs with fixed 2.8V output w/o mode
> + type: object
> + $ref: regulator.yaml#
> + unevaluatedProperties: false
> +
> + "^(ldo_)?vusb$":
> + description: LDOs with fixed 3.3V output
> + type: object
> + $ref: regulator.yaml#
> + properties:
> + regulator-allowed-modes:
> + description: |
> + LDO regulators can set regulator-initial-mode and regulator-allowed-modes to
> + values specified in dt-bindings/regulator/mediatek,mt6392-regulator.h
> + items:
> + enum: [0, 1]
> + unevaluatedProperties: false
> +
> + "^(ldo_)?v(aud22|camaf|camd|cn35|efuse|emc3v3|gp1|gp2|m|mc|mch)$":
> + description: LDOs with variable output
> + type: object
> + $ref: regulator.yaml#
> + properties:
> + regulator-allowed-modes: false
> + unevaluatedProperties: false
> +
> +required:
> + - compatible
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + mt6392_regulators: regulators {
> + compatible = "mediatek,mt6392-regulator";
> +
> + mt6392_vproc_reg: buck_vproc {
> + regulator-name = "vproc";
> + regulator-min-microvolt = <700000>;
> + regulator-max-microvolt = <1350000>;
> + regulator-ramp-delay = <12500>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vsys_reg: buck_vsys {
> + regulator-name = "vsys";
> + regulator-min-microvolt = <1400000>;
> + regulator-max-microvolt = <2987500>;
> + regulator-ramp-delay = <25000>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vcore_reg: buck_vcore {
> + regulator-name = "vcore";
> + regulator-min-microvolt = <700000>;
> + regulator-max-microvolt = <1350000>;
> + regulator-ramp-delay = <12500>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vxo22_reg: ldo_vxo22 {
> + regulator-name = "vxo22";
> + regulator-min-microvolt = <2200000>;
> + regulator-max-microvolt = <2200000>;
> + regulator-enable-ramp-delay = <110>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vaud22_reg: ldo_vaud22 {
> + regulator-name = "vaud22";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <2200000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vcama_reg: ldo_vcama {
> + regulator-name = "vcama";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vaud28_reg: ldo_vaud28 {
> + regulator-name = "vaud28";
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vadc18_reg: ldo_vadc18 {
> + regulator-name = "vadc18";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vcn35_reg: ldo_vcn35 {
> + regulator-name = "vcn35";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3600000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vio28_reg: ldo_vio28 {
> + regulator-name = "vio28";
> + regulator-always-on;
> + regulator-boot-on;
> + regulator-min-microvolt = <2800000>;
> + regulator-max-microvolt = <2800000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vusb_reg: ldo_vusb {
> + regulator-name = "vusb";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vmc_reg: ldo_vmc {
> + regulator-name = "vmc";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-boot-on;
> + };
> +
> + mt6392_vmch_reg: ldo_vmch {
> + regulator-name = "vmch";
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-boot-on;
> + };
> +
> + mt6392_vemc3v3_reg: ldo_vemc3v3 {
> + regulator-name = "vemc3v3";
> + regulator-min-microvolt = <3000000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-boot-on;
> + };
> +
> + mt6392_vgp1_reg: ldo_vgp1 {
> + regulator-name = "vgp1";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vgp2_reg: ldo_vgp2 {
> + regulator-name = "vgp2";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vcn18_reg: ldo_vcn18 {
> + regulator-name = "vcn18";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vcamaf_reg: ldo_vcamaf {
> + regulator-name = "vcamaf";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vm_reg: ldo_vm {
> + regulator-name = "vm";
> + regulator-min-microvolt = <1240000>;
> + regulator-max-microvolt = <1390000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vio18_reg: ldo_vio18 {
> + regulator-name = "vio18";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-enable-ramp-delay = <264>;
> + regulator-always-on;
> + regulator-boot-on;
> + };
> +
> + mt6392_vcamd_reg: ldo_vcamd {
> + regulator-name = "vcamd";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vcamio_reg: ldo_vcamio {
> + regulator-name = "vcamio";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vm25_reg: ldo_vm25 {
> + regulator-name = "vm25";
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> +
> + mt6392_vefuse_reg: ldo_vefuse {
> + regulator-name = "vefuse";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <2000000>;
> + regulator-enable-ramp-delay = <264>;
> + };
> + };
> 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
next prev parent reply other threads:[~2026-03-18 12:39 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-17 18:43 [PATCH v3 0/9] Add support for mt6392 PMIC Luca Leonardo Scorcia
2026-03-17 18:43 ` [PATCH v3 1/9] dt-bindings: mfd: mt6397: Add bindings for MT6392 PMIC Luca Leonardo Scorcia
2026-03-18 7:37 ` Krzysztof Kozlowski
2026-03-18 7:47 ` Krzysztof Kozlowski
2026-03-18 12:39 ` AngeloGioacchino Del Regno
2026-03-17 18:43 ` [PATCH v3 2/9] dt-bindings: input: mtk-pmic-keys: add MT6392 binding definition Luca Leonardo Scorcia
2026-03-18 12:39 ` AngeloGioacchino Del Regno
2026-03-17 18:43 ` [PATCH v3 3/9] dt-bindings: regulator: Document MediaTek MT6392 PMIC Regulators Luca Leonardo Scorcia
2026-03-18 7:43 ` Krzysztof Kozlowski
2026-03-18 21:25 ` Luca Leonardo Scorcia
2026-03-18 22:14 ` Krzysztof Kozlowski
2026-03-19 4:53 ` Chen-Yu Tsai
2026-03-19 7:23 ` Krzysztof Kozlowski
2026-03-18 12:39 ` AngeloGioacchino Del Regno [this message]
2026-03-19 4:56 ` Chen-Yu Tsai
2026-03-17 18:43 ` [PATCH v3 4/9] dt-bindings: pinctrl: mt65xx: Document MT6392 pinctrl Luca Leonardo Scorcia
2026-03-18 12:39 ` AngeloGioacchino Del Regno
2026-03-17 18:43 ` [PATCH v3 5/9] mfd: mt6397: Add support for MT6392 pmic Luca Leonardo Scorcia
2026-03-18 12:39 ` AngeloGioacchino Del Regno
2026-03-26 12:10 ` Lee Jones
2026-03-17 18:43 ` [PATCH v3 6/9] input: keyboard: mtk-pmic-keys: add MT6392 support Luca Leonardo Scorcia
2026-03-18 12:39 ` AngeloGioacchino Del Regno
2026-03-17 18:43 ` [PATCH v3 7/9] regulator: mt6392: Add support for MT6392 regulator Luca Leonardo Scorcia
2026-03-18 12:39 ` AngeloGioacchino Del Regno
2026-03-19 5:04 ` Chen-Yu Tsai
2026-03-30 7:39 ` Luca Leonardo Scorcia
2026-03-30 9:35 ` Chen-Yu Tsai
2026-03-17 18:43 ` [PATCH v3 8/9] pinctrl: mediatek: mt6397: Add support for MT6392 variant Luca Leonardo Scorcia
2026-03-18 12:38 ` AngeloGioacchino Del Regno
2026-03-17 18:43 ` [PATCH v3 9/9] arm64: dts: mt6392: add mt6392 PMIC dtsi Luca Leonardo Scorcia
2026-03-18 12:39 ` AngeloGioacchino Del Regno
2026-03-18 13:54 ` Chen-Yu Tsai
2026-03-18 17:22 ` AngeloGioacchino Del Regno
2026-03-26 5:43 ` Chen-Yu Tsai
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