[PATCH v2 1/5] dt-bindings: bus: add documentation for the IMX AIPSTZ bridge
Krzysztof Kozlowski
krzk at kernel.org
Wed Feb 26 13:16:22 PST 2025
On 26/02/2025 17:53, Laurentiu Mihalcea wrote:
> From: Laurentiu Mihalcea <laurentiu.mihalcea at nxp.com>
>
> Add documentation for IMX AIPSTZ bridge.
>
Please use get_maintainers so this will reach proper lists and
automation. Or just start using b4, so you won't remove cc-entries (v1
looked correct).
> Co-developed-by: Daniel Baluta <daniel.baluta at nxp.com>
> Signed-off-by: Daniel Baluta <daniel.baluta at nxp.com>
> Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea at nxp.com>
> ---
> .../bindings/bus/fsl,imx8mp-aipstz.yaml | 86 +++++++++++++++++++
> 1 file changed, 86 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
>
> diff --git a/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml b/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
> new file mode 100644
> index 000000000000..dfcfe4a8ae74
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/bus/fsl,imx8mp-aipstz.yaml
> @@ -0,0 +1,86 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/bus/fsl,imx8mp-aipstz.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Secure AHB to IP Slave bus (AIPSTZ) bridge
> +
> +description:
> + The secure AIPS bridge (AIPSTZ) acts as a bridge for AHB masters
> + issuing transactions to IP Slave peripherals. Additionally, this module
> + offers access control configurations meant to restrict which peripherals
> + a master can access.
> +
> +maintainers:
> + - Laurentiu Mihalcea <laurentiu.mihalcea at nxp.com>
> +
> +properties:
> + compatible:
> + const: fsl,imx8mp-aipstz
> +
> + reg:
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> + "#address-cells":
> + enum: [1, 2]
> +
> + "#size-cells":
> + enum: [1, 2]
Why flexible? This is either 32- or 64-bit addressing in the sources,
isn't it?
> +
> + "#access-controller-cells":
> + const: 0
> +
> + ranges: true
> +
> +# borrowed from simple-bus.yaml, no additional requirements for children
> +patternProperties:
> + "@(0|[1-9a-f][0-9a-f]*)$":
> + type: object
> + additionalProperties: true
> + properties:
> + reg:
> + items:
> + minItems: 2
> + maxItems: 4
> + minItems: 1
> + maxItems: 1024
> + ranges:
> + oneOf:
> + - items:
> + minItems: 3
> + maxItems: 7
> + minItems: 1
> + maxItems: 1024
> + - $ref: /schemas/types.yaml#/definitions/flag
> + anyOf:
> + - required:
> + - reg
> + - required:
> + - ranges
> +
> +required:
> + - compatible
> + - reg
> + - power-domains
> + - "#address-cells"
> + - "#size-cells"
> + - "#access-controller-cells"
> + - ranges
> +
> +additionalProperties: false
> +
> +examples:
> + - |
> + bus at 30df0000 {
> + compatible = "fsl,imx8mp-aipstz";
> + reg = <0x30df0000 0x10000>;
> + power-domains = <&pgc_audio>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + #access-controller-cells = <0>;
> + ranges;
Add at least one child, so your pattern will be tested.
Best regards,
Krzysztof
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