Re: [PATCH] dt-bindings: arm: omap-l3-noc: Convert to DT schema

[Rob Herring <robh@kernel.org>]

On Sat, Oct 03, 2026 at 12:28:32AM +0530, Bhargav Joshi wrote:
> Convert TI L3 NoC binding from text to DT schema format. Older OMAP3
> uses the SMX variant which also acts as a bus parent with simple-bus
> compatible so child nodes are allowed using patternproperties. Mark
> ti,hwmods deprecated as it is no longer needed and only used by older
> omap3-l3-smx.
> 
> Signed-off-by: Bhargav Joshi <j.bhargav.u@gmail.com>
> ---
>  .../devicetree/bindings/arm/omap/l3-noc.txt        |  23 ----
>  .../bindings/arm/omap/ti,omap-l3-noc.yaml          | 149 +++++++++++++++++++++

This should move to bindings/soc/ti/ or bindings/bus/ perhaps.

>  2 files changed, 149 insertions(+), 23 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/omap/l3-noc.txt b/Documentation/devicetree/bindings/arm/omap/l3-noc.txt
> deleted file mode 100644
> index 161448da959d2..0000000000000
> --- a/Documentation/devicetree/bindings/arm/omap/l3-noc.txt
> +++ /dev/null
> @@ -1,23 +0,0 @@
> -* TI - L3 Network On Chip (NoC)
> -
> -This version is an implementation of the generic NoC IP
> -provided by Arteris.
> -
> -Required properties:
> -- compatible : Should be "ti,omap3-l3-smx" for OMAP3 family
> -               Should be "ti,omap4-l3-noc" for OMAP4 family
> -               Should be "ti,omap5-l3-noc" for OMAP5 family
> -	       Should be "ti,dra7-l3-noc" for DRA7 family
> -               Should be "ti,am4372-l3-noc" for AM43 family
> -- reg:	Contains L3 register address range for each noc domain.
> -- ti,hwmods: "l3_main_1", ... One hwmod for each noc domain.
> -
> -Examples:
> -
> -ocp {
> -	compatible = "ti,omap4-l3-noc", "simple-bus";
> -	#address-cells = <1>;
> -	#size-cells = <1>;
> -	ranges;
> -	ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3";
> -};
> diff --git a/Documentation/devicetree/bindings/arm/omap/ti,omap-l3-noc.yaml b/Documentation/devicetree/bindings/arm/omap/ti,omap-l3-noc.yaml
> new file mode 100644
> index 0000000000000..a72a0f4e64332
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/omap/ti,omap-l3-noc.yaml
> @@ -0,0 +1,149 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/arm/omap/ti,omap-l3-noc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: TI OMAP L3 Network On Chip (NoC) Interconnect
> +
> +maintainers:
> +  - Santosh Shilimkar <santosh.shilimkar@ti.com>
> +  - Sricharan R <r.sricharan@ti.com>
> +
> +description:
> +  The L3 interconnect is an implementation of the generic NoC IP provided by
> +  Arteris. OMAP3 uses the SMX variant while OMAP4/5, DRA7, and AM4372 use the
> +  NoC variant.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: ti,omap3-l3-smx
> +          - const: simple-bus
> +      - enum:
> +          - ti,omap4-l3-noc
> +          - ti,omap5-l3-noc
> +          - ti,dra7-l3-noc
> +          - ti,am4372-l3-noc
> +
> +  reg:
> +    minItems: 1
> +    maxItems: 3

Need to define what each region is.

> +
> +  interrupts:
> +    minItems: 2
> +    maxItems: 2

Need to define what each interrupt is.

> +
> +  ti,hwmods:
> +    description: hwmod names for each NoC domain.
> +    $ref: /schemas/types.yaml#/definitions/string-array
> +    deprecated: true
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 1
> +
> +  ranges: true
> +
> +patternProperties:
> +  "^(.*@[0-9a-fA-F]+|regulator-abb-mpu)$":

I suspect that regulator-abb-mpu should be moved out of this node.

A-F is generally not used for unit-addresses. Do we need it?

Rob