[PATCH v10 1/2] dt-bindings: i3c: Add AMD I3C master controller support
Pandey, Radhey Shyam
radheys at amd.com
Mon Jul 13 09:38:03 PDT 2026
> From: Manikanta Guntupalli <manikanta.guntupalli at amd.com>
>
> Add device tree binding documentation for the AMD I3C master controller
> version 1.0.
>
> Signed-off-by: Manikanta Guntupalli <manikanta.guntupalli at amd.com>
> Co-developed-by: Shubham Patil <shubhamsanjay.patil at amd.com>
> Signed-off-by: Shubham Patil <shubhamsanjay.patil at amd.com>
> Reviewed-by: Rob Herring (Arm) <robh at kernel.org>
> ---
v10 changes looks fine to me.
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey at amd.com>
Thanks!
> Changes for V10:
> Use symbolic interrupt macros and include arm-gic.h.
> Added Shubham Patil as Co-developed-by / Signed-off-by on the binding.
>
> Changes for V9:
> Updated the MAINTAINER section.
>
> Changes for V8:
> None.
>
> Changes for V7:
> Added i3c controller version details to commit description.
>
> Changes for V6:
> Corrected the file name for $id in yaml to fix the dtschema warning.
>
> Changes for V5:
> Renamed the xlnx,axi-i3c.yaml file into xlnx,axi-i3c-1.0.yaml.
>
> Changes for V4:
> Added h/w documentation details.
>
> Changes for V3:
> Updated commit description.
> Corrected the order of properties and removed resets property.
> Added compatible to required list.
> Added interrupts to example.
>
> Changes for V2:
> Updated commit subject and description.
> Moved allOf to after required.
> Removed xlnx,num-targets property.
> ---
> .../bindings/i3c/xlnx,axi-i3c-1.0.yaml | 58 +++++++++++++++++++
> 1 file changed, 58 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml
>
> diff --git a/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml b/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml
> new file mode 100644
> index 000000000000..2caa245a8656
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i3c/xlnx,axi-i3c-1.0.yaml
> @@ -0,0 +1,58 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/i3c/xlnx,axi-i3c-1.0.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: AMD I3C master
> +
> +maintainers:
> + - Shubhrajyoti Datta <shubhrajyoti.datta at amd.com>
> + - Shubham Patil <shubhamsanjay.patil at amd.com>
> +
> +description:
> + The AXI-I3C IP is an I3C Controller with an AXI4-Lite interface, compatible
> + with the MIPI I3C Specification v1.1.1. The design includes bidirectional I/O
> + buffers that implement open collector drivers for the SDA and SCL signals.
> + External pull-up resistors are required to properly hold the bus at a Logic-1
> + level when the drivers are released.
> +
> + For more details, please see https://docs.amd.com/r/en-US/pg439-axi-i3c
> +
> +properties:
> + compatible:
> + const: xlnx,axi-i3c-1.0
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> +
> +allOf:
> + - $ref: i3c.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/arm-gic.h>
> +
> + i3c at 80000000 {
> + compatible = "xlnx,axi-i3c-1.0";
> + reg = <0x80000000 0x10000>;
> + clocks = <&zynqmp_clk 71>;
> + interrupt-parent = <&imux>;
> + interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <3>;
> + #size-cells = <0>;
> + };
> +...
More information about the linux-i3c
mailing list