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diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6316b-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6316b-regulator.yaml new file mode 100644 index 000000000000..ea595935f4c4 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6316b-regulator.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/mediatek,mt6316b-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT6316 BP/VP SPMI PMIC Regulators + +maintainers: + - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> + +description: + The MediaTek MT6316BP/VP PMICs are fully controlled by SPMI interface, both + feature four step-down DC/DC (buck) converters, and provides 2+2 Phases, + joining Buck 1+2 for the first phase, and Buck 3+4 for the second phase. + +properties: + compatible: + const: mediatek,mt6316b-regulator + + reg: + maxItems: 1 + +patternProperties: + "^vbuck(12|34)$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + properties: + regulator-allowed-modes: + description: | + Allowed Buck regulator operating modes allowed. Valid values below. + 0 - Normal mode with automatic power saving, reducing the switching + frequency when light load conditions are detected + 1 - Forced Continuous Conduction mode (FCCM) for improved voltage + regulation accuracy with constant switching frequency but lower + regulator efficiency + 2 - Forced Low Power mode for improved regulator efficiency, used + when no heavy load is expected, will shut down unnecessary IP + blocks and secondary phases to reduce quiescent current. + This mode does not limit the maximum output current but unless + only a light load is applied, there will be regulation accuracy + and efficiency losses. + minItems: 1 + maxItems: 3 + items: + enum: [ 0, 1, 2 ] + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/spmi/spmi.h> + + spmi { + #address-cells = <2>; + #size-cells = <0>; + + pmic@8 { + compatible = "mediatek,mt6316b-regulator"; + reg = <0x8 SPMI_USID>; + + vbuck12 { + regulator-name = "dvdd_core"; + regulator-min-microvolt = <450000>; + regulator-max-microvolt = <965000>; + regulator-allowed-modes = <0 1 2>; + regulator-enable-ramp-delay = <256>; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6316c-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6316c-regulator.yaml new file mode 100644 index 000000000000..186dcd3f11ed --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6316c-regulator.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/mediatek,mt6316c-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT6316 CP/HP/KP SPMI PMIC Regulators + +maintainers: + - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> + +description: + The MediaTek MT6316CP/HP/KP PMICs are fully controlled by SPMI interface, + features four step-down DC/DC (buck) converters, and provides 3+1 Phases, + joining Buck 1+2+4 for the first phase, and uses Buck 3 for the second. + +properties: + compatible: + const: mediatek,mt6316c-regulator + + reg: + maxItems: 1 + +patternProperties: + "^vbuck(124|3)$": + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + properties: + regulator-allowed-modes: + description: | + Allowed Buck regulator operating modes allowed. Valid values below. + 0 - Normal mode with automatic power saving, reducing the switching + frequency when light load conditions are detected + 1 - Forced Continuous Conduction mode (FCCM) for improved voltage + regulation accuracy with constant switching frequency but lower + regulator efficiency + 2 - Forced Low Power mode for improved regulator efficiency, used + when no heavy load is expected, will shut down unnecessary IP + blocks and secondary phases to reduce quiescent current. + This mode does not limit the maximum output current but unless + only a light load is applied, there will be regulation accuracy + and efficiency losses. + minItems: 1 + maxItems: 3 + items: + enum: [ 0, 1, 2 ] + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/spmi/spmi.h> + + spmi { + #address-cells = <2>; + #size-cells = <0>; + + pmic@6 { + compatible = "mediatek,mt6316c-regulator"; + reg = <0x6 SPMI_USID>; + + vbuck124 { + regulator-name = "dvdd_proc_m"; + regulator-min-microvolt = <450000>; + regulator-max-microvolt = <1277500>; + regulator-allowed-modes = <0 1 2>; + regulator-enable-ramp-delay = <256>; + }; + }; + }; +... diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml new file mode 100644 index 000000000000..aa9e9ef3b52d --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/mediatek,mt6316d-regulator.yaml @@ -0,0 +1,75 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/mediatek,mt6316d-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek MT6316 DP/TP SPMI PMIC Regulators + +maintainers: + - AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> + +description: + The MediaTek MT6316DP/TP PMICs are fully controlled by SPMI interface, both + feature four step-down DC/DC (buck) converters, and provides a single Phase, + joining Buck 1+2+3+4. + +properties: + compatible: + const: mediatek,mt6316d-regulator + + reg: + maxItems: 1 + + vbuck1234: + type: object + $ref: regulator.yaml# + unevaluatedProperties: false + properties: + regulator-allowed-modes: + description: | + Allowed Buck regulator operating modes allowed. Valid values below. + 0 - Normal mode with automatic power saving, reducing the switching + frequency when light load conditions are detected + 1 - Forced Continuous Conduction mode (FCCM) for improved voltage + regulation accuracy with constant switching frequency but lower + regulator efficiency + 2 - Forced Low Power mode for improved regulator efficiency, used + when no heavy load is expected, will shut down unnecessary IP + blocks and secondary phases to reduce quiescent current. + This mode does not limit the maximum output current but unless + only a light load is applied, there will be regulation accuracy + and efficiency losses. + minItems: 1 + maxItems: 3 + items: + enum: [ 0, 1, 2 ] + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/spmi/spmi.h> + + spmi { + #address-cells = <2>; + #size-cells = <0>; + + pmic@7 { + compatible = "mediatek,mt6316d-regulator"; + reg = <0x7 SPMI_USID>; + + vbuck1234 { + regulator-name = "dvdd_gpustack"; + regulator-min-microvolt = <400000>; + regulator-max-microvolt = <1277500>; + regulator-allowed-modes = <0 1 2>; + regulator-enable-ramp-delay = <256>; + }; + }; + }; +... |