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4c03653f19
Add device tree bindings for NVIDIA VRS (Voltage Regulator Specification) RTC device. NVIDIA VRS is a Power Management IC (PMIC) that implements a power sequencing solution with I2C interface. The device includes RTC which provides functionality to get/set system time, retain system time across boot, wake system from suspend and shutdown state. Supported platforms: - NVIDIA Jetson AGX Orin Developer Kit - NVIDIA IGX Orin Development Kit - NVIDIA Jetson Orin NX Developer Kit - NVIDIA Jetson Orin Nano Developer Kit Signed-off-by: Shubhi Garg <shgarg@nvidia.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Link: https://patch.msgid.link/20251007135738.487694-2-shgarg@nvidia.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
60 lines
1.4 KiB
YAML
60 lines
1.4 KiB
YAML
# 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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$id: http://devicetree.org/schemas/rtc/nvidia,vrs-10.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: NVIDIA Voltage Regulator Specification Real Time Clock
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maintainers:
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- Shubhi Garg <shgarg@nvidia.com>
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description:
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NVIDIA VRS-10 (Voltage Regulator Specification) is a Power Management IC
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(PMIC) that implements a power sequencing solution with I2C interface.
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The device includes a real-time clock (RTC) with 32kHz clock output and
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backup battery support, alarm functionality for system wake-up from
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suspend and shutdown states, OTP memory for power sequencing configuration,
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and an interrupt controller for managing VRS events.
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properties:
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compatible:
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const: nvidia,vrs-10
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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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interrupt-controller: true
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'#interrupt-cells':
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const: 2
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required:
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- compatible
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- reg
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- interrupts
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- interrupt-controller
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- '#interrupt-cells'
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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pmic@3c {
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compatible = "nvidia,vrs-10";
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reg = <0x3c>;
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interrupt-parent = <&pmc>;
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interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
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interrupt-controller;
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#interrupt-cells = <2>;
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};
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};
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