forked from Minki/linux
regulator: dt-bindings: samsung,s2m: convert to dtschema
Convert the regulators of Samsung S2MPS11/S2MPS13/S2MPS14/S2MPS15/S2MPU02 family of PMICs to DT schema format. Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Reviewed-by: Rob Herring <robh@kernel.org> Message-Id: <20211008113931.134847-1-krzysztof.kozlowski@canonical.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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Binding for Samsung S2M family regulator block
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==============================================
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This is a part of device tree bindings for S2M family multi-function devices.
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More information can be found in bindings/mfd/sec-core.txt file.
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The S2MPS11/13/14/15 and S2MPU02 devices provide buck and LDO regulators.
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To register these with regulator framework instantiate under main device node
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a sub-node named "regulators" with more sub-nodes for each regulator using the
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common regulator binding documented in:
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- Documentation/devicetree/bindings/regulator/regulator.txt
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Names of regulators supported by different devices:
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- LDOn
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- valid values for n are:
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- S2MPS11: 1 to 38
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- S2MPS13: 1 to 40
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- S2MPS14: 1 to 25
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- S2MPS15: 1 to 27
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- S2MPU02: 1 to 28
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- Example: LDO1, LDO2, LDO28
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- BUCKn
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- valid values for n are:
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- S2MPS11: 1 to 10
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- S2MPS13: 1 to 10
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- S2MPS14: 1 to 5
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- S2MPS15: 1 to 10
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- S2MPU02: 1 to 7
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- Example: BUCK1, BUCK2, BUCK9
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Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
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as per the datasheet of device.
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Optional properties of the nodes under "regulators" sub-node:
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- regulator-ramp-delay: ramp delay in uV/us. May be 6250, 12500,
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25000 (default) or 50000.
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Additionally S2MPS11 supports disabling ramp delay for BUCK{2,3,4,6}
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by setting it to <0>.
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Note: On S2MPS11 some bucks share the ramp rate setting i.e. same ramp value
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will be set for a particular group of bucks so provide the same
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regulator-ramp-delay value for them.
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Groups sharing ramp rate:
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- buck{1,6},
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- buck{3,4},
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- buck{7,8,10}.
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- samsung,ext-control-gpios: On S2MPS14 the LDO10, LDO11 and LDO12 can be
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configured to external control over GPIO. To turn this feature on this
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property must be added to the regulator sub-node:
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- samsung,ext-control-gpios: GPIO specifier for one GPIO
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controlling this regulator (enable/disable)
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Example:
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LDO12 {
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regulator-name = "V_EMMC_2.8V";
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regulator-min-microvolt = <2800000>;
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regulator-max-microvolt = <2800000>;
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samsung,ext-control-gpios = <&gpk0 2 0>;
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};
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Example:
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s2mps11_pmic@66 {
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compatible = "samsung,s2mps11-pmic";
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reg = <0x66>;
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regulators {
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ldo1_reg: LDO1 {
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regulator-name = "VDD_ABB_3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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ldo2_reg: LDO2 {
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regulator-name = "VDD_ALIVE_1.1V";
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regulator-min-microvolt = <1100000>;
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regulator-max-microvolt = <1100000>;
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regulator-always-on;
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};
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buck1_reg: BUCK1 {
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regulator-name = "vdd_mif";
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regulator-min-microvolt = <950000>;
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regulator-max-microvolt = <1350000>;
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regulator-always-on;
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regulator-boot-on;
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};
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buck2_reg: BUCK2 {
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regulator-name = "vdd_arm";
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regulator-min-microvolt = <950000>;
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regulator-max-microvolt = <1350000>;
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regulator-always-on;
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regulator-boot-on;
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regulator-ramp-delay = <50000>;
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};
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};
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};
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/samsung,s2mps11.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung S2MPS11 Power Management IC regulators
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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description: |
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This is a part of device tree bindings for S2M and S5M family of Power
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Management IC (PMIC).
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The S2MPS11 provides buck and LDO regulators.
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See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
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additional information and example.
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patternProperties:
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# 38 LDOs
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"^LDO([1-9]|[1-2][0-9]|3[0-8])$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single LDO regulator.
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required:
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- regulator-name
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# 10 bucks
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"^BUCK([1-9]|10)$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single BUCK regulator.
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required:
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- regulator-name
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additionalProperties: false
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/samsung,s2mps13.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung S2MPS13 Power Management IC regulators
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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description: |
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This is a part of device tree bindings for S2M and S5M family of Power
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Management IC (PMIC).
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The S2MPS13 provides buck and LDO regulators.
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See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
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additional information and example.
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patternProperties:
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# 40 LDOs
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"^LDO([1-9]|[1-3][0-9]|40)$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single LDO regulator.
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required:
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- regulator-name
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# 10 bucks
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"^BUCK([1-9]|10)$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single BUCK regulator.
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required:
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- regulator-name
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additionalProperties: false
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/samsung,s2mps14.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung S2MPS14 Power Management IC regulators
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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description: |
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This is a part of device tree bindings for S2M and S5M family of Power
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Management IC (PMIC).
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The S2MPS14 provides buck and LDO regulators.
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See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
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additional information and example.
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patternProperties:
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# 25 LDOs
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"^LDO([1-9]|[1][0-9]|2[0-5])$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single LDO regulator.
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required:
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- regulator-name
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# 5 bucks
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"^BUCK[1-5]$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single BUCK regulator.
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required:
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- regulator-name
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additionalProperties: false
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/samsung,s2mps15.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung S2MPS15 Power Management IC regulators
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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description: |
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This is a part of device tree bindings for S2M and S5M family of Power
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Management IC (PMIC).
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The S2MPS15 provides buck and LDO regulators.
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See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
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additional information and example.
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patternProperties:
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# 27 LDOs
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"^LDO([1-9]|[1][0-9]|2[0-7])$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single LDO regulator.
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required:
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- regulator-name
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# 10 bucks
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"^BUCK([1-9]|10)$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single BUCK regulator.
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required:
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- regulator-name
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additionalProperties: false
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/samsung,s2mpu02.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung S2MPU02 Power Management IC regulators
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maintainers:
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- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
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description: |
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This is a part of device tree bindings for S2M and S5M family of Power
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Management IC (PMIC).
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The S2MPU02 provides buck and LDO regulators.
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See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
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additional information and example.
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patternProperties:
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# 28 LDOs
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"^LDO([1-9]|1[0-9]|2[0-8])$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single LDO regulator.
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required:
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- regulator-name
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# 7 bucks
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"^BUCK[1-7]$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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description:
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Properties for single BUCK regulator.
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required:
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- regulator-name
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additionalProperties: false
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@ -16332,7 +16332,7 @@ L: linux-samsung-soc@vger.kernel.org
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S: Supported
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F: Documentation/devicetree/bindings/clock/samsung,s2mps11.yaml
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F: Documentation/devicetree/bindings/mfd/samsung,sec-core.txt
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F: Documentation/devicetree/bindings/regulator/samsung,s2m*.txt
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F: Documentation/devicetree/bindings/regulator/samsung,s2m*.yaml
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F: Documentation/devicetree/bindings/regulator/samsung,s5m*.txt
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F: drivers/clk/clk-s2mps11.c
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F: drivers/mfd/sec*.c
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