[PATCH v6 1/4] dt-bindings: rtc: Document NVIDIA VRS RTC

[Rob Herring]

On Fri, Sep 19, 2025 at 01:59:50PM +0000, Shubhi Garg wrote:
> 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.

I only see this patch. The threading of this is broken.

> 
> 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 at nvidia.com>
> ---
> 
> v6:
> - compatible name fixes to "nvidia,vrs-10"
> - changed dtb node name to pmic at 3c
> 
> v5:
> - moved device tree bindings from mfd to rtc
> - changed dtb node name to rtc at 3c
> - changed compatible string to "nvidia,vrs10-rtc"
> 
> v4:
> - no changes
> 
> v3:
> - fixed device tree node name to generic "pmic at 3c"
> - fixed indentation
> 
> v2:
> - fixed copyrights
> - updated description with RTC information
> - added status node in dtb node example
> 
>  .../bindings/rtc/nvidia,vrs10-rtc.yaml        | 59 +++++++++++++++++++

Filename should match compatible string.

>  1 file changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml b/Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml
> new file mode 100644
> index 000000000000..e8f3c25607e0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rtc/nvidia,vrs10-rtc.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/rtc/nvidia,vrs10-rtc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NVIDIA Voltage Regulator Specification Real Time Clock
> +
> +maintainers:
> +  - Shubhi Garg <shgarg at nvidia.com>
> +
> +description:
> +  NVIDIA VRS-10 (Voltage Regulator Specification) is a Power Management IC
> +  (PMIC) that implements a power sequencing solution with I2C interface.
> +  The device includes a real-time clock (RTC) with 32kHz clock output and
> +  backup battery support, alarm functionality for system wake-up from
> +  suspend and shutdown states, OTP memory for power sequencing configuration,
> +  and an interrupt controller for managing VRS events.
> +
> +properties:
> +  compatible:
> +    const: nvidia,vrs-10
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  interrupt-controller: true
> +
> +  '#interrupt-cells':
> +    const: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - interrupt-controller
> +  - '#interrupt-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        pmic at 3c {
> +            compatible = "nvidia,vrs-10";
> +            reg = <0x3c>;
> +            interrupt-parent = <&pmc>;
> +            interrupts = <24 IRQ_TYPE_LEVEL_LOW>;
> +            interrupt-controller;
> +            #interrupt-cells = <2>;
> +        };
> +    };
> -- 
> 2.43.0
>