Re: [PATCH v3 1/2] dt-bindings: i3c: Add adi-i3c-master

Krzysztof Kozlowski
2025-06-18T09:23:40Z

On Wed, Jun 18, 2025 at 09:16:43AM GMT, Jorge Marques wrote:
> Add bindings doc for ADI I3C Controller IP core, a FPGA synthesizable IP
> core that implements the MIPI I3C Basic controller specification.

Here you put outcome of previous questions - why such compatible was
chosen, that hardware is this and that.

>
> Signed-off-by: Jorge Marques <jorge.marques@analog.com>
> ---
> .../devicetree/bindings/i3c/adi,i3c-master.yaml | 63 ++++++++++++++++++++++
> MAINTAINERS | 5 ++
> 2 files changed, 68 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/i3c/adi,i3c-master.yaml b/Documentation/devicetree/bindings/i3c/adi,i3c-master.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..718733bbb450c34c5d4924050cc6f85d8a80fe4b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i3c/adi,i3c-master.yaml

Filename based on the compatible, so adi,i3c-master-1.00.a.yaml

> @@ -0,0 +1,63 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/i3c/adi,i3c-master.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices I3C Controller
> +
> +description: |
> + FPGA-based I3C controller designed to interface with I3C and I2C peripherals,
> + implementing a subset of the I3C-basic specification.
> +
> + https://analogdevicesinc.github.io/hdl/library/i3c_controller
> +
> +maintainers:
> + - Jorge Marques <jorge.marques@analog.com>
> +
> +properties:
> + compatible:
> + const: adi,i3c-master-1.00.a
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + minItems: 1

Why?

> + items:
> + - description: The AXI interconnect clock.
> + - description: The I3C controller clock.
> +
> + clock-names:

Not synced with clocks.

> + items:
> + - const: axi
> + - const: i3c
> +
> + interrupts:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - clock-names
> + - interrupts
> +
> +allOf:
> + - $ref: i3c.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + i3c@44a00000 {
> + compatible = "adi,i3c-master";
> + reg = <0x44a00000 0x1000>;
> + interrupts = <0 56 4>;

Use proper defines.

Best regards,
Krzysztof