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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: mfd: Add support the SpacemiT P1 PMIC
Enable the SpacemiT P1, which is an I2C-controlled PMIC. Initially
only the RTC and regulators will be supported.
Signed-off-by: Alex Elder <elder@riscstar.com>
Reviewed-by: "Rob Herring (Arm)" <robh@kernel.org>
Acked-by: Troy Mitchell <troymitchell988@gmail.com>
Link: https://lore.kernel.org/r/20250825172057.163883-2-elder@riscstar.com
Signed-off-by: Lee Jones <lee@kernel.org>
authored by
Alex Elder
and committed by
Lee Jones
8566de1c
a598ae45
+86
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Documentation/devicetree/bindings/mfd/spacemit,p1.yaml
+86
Documentation/devicetree/bindings/mfd/spacemit,p1.yaml
···
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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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$id: http://devicetree.org/schemas/mfd/spacemit,p1.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: SpacemiT P1 Power Management Integrated Circuit
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maintainers:
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- Troy Mitchell <troy.mitchell@linux.spacemit.com>
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description:
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P1 is an I2C-controlled PMIC produced by SpacemiT. It implements six
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constant-on-time buck converters and twelve low-dropout regulators.
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It also contains a load switch, watchdog timer, real-time clock, eight
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12-bit ADC channels, and six GPIOs. Additional details are available
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in the "Power Stone/P1" section at the following link.
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https://developer.spacemit.com/documentation
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properties:
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compatible:
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const: spacemit,p1
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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vin-supply:
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description: Input supply phandle.
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regulators:
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type: object
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patternProperties:
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"^(buck[1-6]|aldo[1-4]|dldo[1-7])$":
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type: object
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$ref: /schemas/regulator/regulator.yaml#
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unevaluatedProperties: false
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unevaluatedProperties: false
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required:
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- compatible
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- reg
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- interrupts
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unevaluatedProperties: 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@41 {
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compatible = "spacemit,p1";
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reg = <0x41>;
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interrupts = <64>;
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regulators {
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buck1 {
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regulator-name = "buck1";
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regulator-min-microvolt = <500000>;
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regulator-max-microvolt = <3450000>;
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regulator-ramp-delay = <5000>;
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regulator-always-on;
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};
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aldo1 {
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regulator-name = "aldo1";
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regulator-min-microvolt = <500000>;
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regulator-max-microvolt = <3400000>;
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regulator-boot-on;
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};
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dldo1 {
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regulator-name = "dldo1";
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regulator-min-microvolt = <500000>;
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regulator-max-microvolt = <3400000>;
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regulator-boot-on;
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};
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};
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};
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};