[PATCH 1/8] dt-bindings: clock, reset: Add econet EN751221 bindings

[Krzysztof Kozlowski]

On Tue, Mar 03, 2026 at 07:09:41PM +0000, Caleb James DeLisle wrote:
> Add clock and reset bindings for EN751221 as well as
> a "chip-scu" which is an additional regmap that is used
> by the clock driver as well as others. This split of the
> SCU across two register areas is the same as the Airoha
> AN758x family.

Please wrap commit message according to Linux coding style / submission
process (neither too early nor over the limit):
https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597

A nit, subject: drop second/last, redundant "bindings". The
"dt-bindings" prefix is already stating that these are bindings.
See also:
https://elixir.bootlin.com/linux/v6.17-rc3/source/Documentation/devicetree/bindings/submitting-patches.rst#L18

> 
> Signed-off-by: Caleb James DeLisle <cjd at cjdns.fr>
> ---
>  .../bindings/clock/airoha,en7523-scu.yaml     | 19 ++++++-
>  .../mips/econet,en751221-chip-scu.yaml        | 41 ++++++++++++++++
>  MAINTAINERS                                   |  3 ++
>  .../dt-bindings/clock/econet,en751221-scu.h   | 15 ++++++
>  .../dt-bindings/reset/econet,en751221-scu.h   | 49 +++++++++++++++++++
>  5 files changed, 126 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/mips/econet,en751221-chip-scu.yaml
>  create mode 100644 include/dt-bindings/clock/econet,en751221-scu.h
>  create mode 100644 include/dt-bindings/reset/econet,en751221-scu.h
> 
> diff --git a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> index a8471367175b..e60e54273393 100644
> --- a/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> +++ b/Documentation/devicetree/bindings/clock/airoha,en7523-scu.yaml
> @@ -32,6 +32,7 @@ properties:
>        - enum:
>            - airoha,en7523-scu
>            - airoha,en7581-scu
> +          - econet,en751221-scu
>  
>    reg:
>      items:
> @@ -67,7 +68,10 @@ allOf:
>    - if:
>        properties:
>          compatible:
> -          const: airoha,en7581-scu
> +          items:

Drop items, it's just enum

> +            - enum:
> +                - airoha,en7581-scu
> +                - econet,en751221-scu
>      then:
>        properties:
>          reg:
> @@ -98,3 +102,16 @@ examples:
>                #reset-cells = <1>;
>        };
>      };
> +
> +  - |
> +    soc {
> +      #address-cells = <1>;
> +      #size-cells = <1>;

No need for new example, especially without any differences. You already
have there two.

> +
> +      scuclk2: clock-controller at 1fb00000 {
> +        compatible = "econet,en751221-scu";
> +        reg = <0x1fb00000 0x970>;
> +        #clock-cells = <1>;
> +        #reset-cells = <1>;
> +      };
> +    };
> diff --git a/Documentation/devicetree/bindings/mips/econet,en751221-chip-scu.yaml b/Documentation/devicetree/bindings/mips/econet,en751221-chip-scu.yaml
> new file mode 100644
> index 000000000000..7c7c8cf8d2a5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mips/econet,en751221-chip-scu.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mips/econet,en751221-chip-scu.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: EcoNet Chip SCU Controller for EN751221 SoC
> +
> +maintainers:
> +  - Caleb James DeLisle <cjd at cjdns.fr>
> +
> +description:
> +  The EcoNet chip-scu block provides a configuration interface for clock,
> +  io-muxing and other functionalities used by multiple controllers (e.g. clock,
> +  pinctrl, ecc) on EN751221 SoC.
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: econet,en751221-chip-scu
> +      - const: syscon

And it does not fit existing syscon bindings file, because ... ?

> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    soc {
> +      #address-cells = <1>;
> +      #size-cells = <1>;
> +      syscon at 1fa20000 {
> +        compatible = "econet,en751221-chip-scu", "syscon";
> +        reg = <0x1fa20000 0x388>;
> +      };
> +    };

...

> +
> +#define EN751221_MAX_CLKS	6

Drop, not a binding.

> +
> +#endif /* _DT_BINDINGS_CLOCK_ECONET_EN751221_SCU_H_ */
> diff --git a/include/dt-bindings/reset/econet,en751221-scu.h b/include/dt-bindings/reset/econet,en751221-scu.h
> new file mode 100644

Best regards,
Krzysztof