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regulator: dt-bindings: microchip,mcp16502: convert to YAML
Convert devicetree binding mcp16502-regulator.txt to YAML format. Signed-off-by: Andrei Simion <andrei.simion@microchip.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://msgid.link/r/20240201161517.492162-1-andrei.simion@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
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Andrei Simion
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Mark Brown
Mark Brown
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commit
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MCP16502 PMIC
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Required properties:
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- compatible: "microchip,mcp16502"
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- reg: I2C slave address
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- lpm-gpios: GPIO for LPM pin. Note that this GPIO *must* remain high during
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suspend-to-ram, keeping the PMIC into HIBERNATE mode; this
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property is optional;
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- regulators: A node that houses a sub-node for each regulator within
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the device. Each sub-node is identified using the node's
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name. The content of each sub-node is defined by the
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standard binding for regulators; see regulator.txt.
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Regulators of MCP16502 PMIC:
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1) VDD_IO - Buck (1.2 - 3.7 V)
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2) VDD_DDR - Buck (0.6 - 1.85 V)
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3) VDD_CORE - Buck (0.6 - 1.85 V)
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4) VDD_OTHER - BUCK (0.6 - 1.85 V)
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5) LDO1 - LDO (1.2 - 3.7 V)
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6) LDO2 - LDO (1.2 - 3.7 V)
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Regulator modes:
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2 - FPWM: higher precision, higher consumption
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4 - AutoPFM: lower precision, lower consumption
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Each regulator is defined using the standard binding for regulators.
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Example:
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mcp16502@5b {
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compatible = "microchip,mcp16502";
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reg = <0x5b>;
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status = "okay";
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lpm-gpios = <&pioBU 7 GPIO_ACTIVE_HIGH>;
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regulators {
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VDD_IO {
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regulator-name = "VDD_IO";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3700000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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VDD_DDR {
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regulator-name = "VDD_DDR";
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regulator-min-microvolt = <600000>;
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regulator-max-microvolt = <1850000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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};
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VDD_CORE {
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regulator-name = "VDD_CORE";
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regulator-min-microvolt = <600000>;
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regulator-max-microvolt = <1850000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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VDD_OTHER {
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regulator-name = "VDD_OTHER";
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regulator-min-microvolt = <600000>;
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regulator-max-microvolt = <1850000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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LDO1 {
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regulator-name = "LDO1";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3700000>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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LDO2 {
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regulator-name = "LDO2";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3700000>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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};
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};
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@@ -0,0 +1,180 @@
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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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$id: http://devicetree.org/schemas/regulator/microchip,mcp16502.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MCP16502 - High-Performance PMIC
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maintainers:
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- Andrei Simion <andrei.simion@microchip.com>
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description:
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The MCP16502 is an optimally integrated PMIC compatible
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with Microchip's eMPUs(Embedded Microprocessor Units),
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requiring Dynamic Voltage Scaling (DVS) with the use
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of High-Performance mode (HPM).
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properties:
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compatible:
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const: microchip,mcp16502
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lpm-gpios:
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maxItems: 1
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description: GPIO for LPM pin.
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Note that this GPIO must remain high during
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suspend-to-ram, keeping the PMIC into HIBERNATE mode.
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reg:
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maxItems: 1
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regulators:
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type: object
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additionalProperties: false
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description: List of regulators and its properties.
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patternProperties:
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"^(VDD_(IO|CORE|DDR|OTHER)|LDO[1-2])$":
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type: object
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$ref: regulator.yaml#
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unevaluatedProperties: false
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properties:
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regulator-initial-mode:
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enum: [2, 4]
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default: 2
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description: Initial operating mode
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regulator-allowed-modes:
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items:
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enum: [2, 4]
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description: Supported modes
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2 - FPWM higher precision, higher consumption
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4 - AutoPFM lower precision, lower consumption
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required:
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- compatible
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- reg
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- regulators
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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pmic@5b {
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compatible = "microchip,mcp16502";
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reg = <0x5b>;
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regulators {
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VDD_IO {
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regulator-name = "VDD_IO";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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VDD_DDR {
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regulator-name = "VDD_DDR";
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regulator-min-microvolt = <1350000>;
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regulator-max-microvolt = <1350000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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};
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VDD_CORE {
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regulator-name = "VDD_CORE";
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regulator-min-microvolt = <1150000>;
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regulator-max-microvolt = <1150000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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VDD_OTHER {
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regulator-name = "VDD_OTHER";
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regulator-min-microvolt = <1050000>;
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regulator-max-microvolt = <1250000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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LDO1 {
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regulator-name = "LDO1";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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LDO2 {
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regulator-name = "LDO2";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3700000>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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};
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};
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};
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Reference in New Issue
Block a user