Re: [PATCH v4 1/3] dt-bindings: reset: add sky1 reset controller

[Krzysztof Kozlowski <krzk@kernel.org>]

On 28/01/2026 10:36, Gary Yang wrote:
> There are two reset controllers on Cix sky1 Soc.
> One is located in S0 domain, and the other is located
> in S0 and S5 domain.

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

> 
> Signed-off-by: Gary Yang <gary.yang@cixtech.com>
> Link: https://lore.kernel.org/r/20251124063235.952136-2-gary.yang@cixtech.com
> Signed-off-by: Peter Chen <peter.chen@cixtech.com>
> ---
>  .../devicetree/bindings/mfd/syscon.yaml       |   7 +
>  .../bindings/reset/cix,sky1-rst.yaml          |  46 +++++
>  .../soc/cix/cix,sky1-system-controller.yaml   |  48 +++++
>  include/dt-bindings/reset/cix,sky1-rst-fch.h  |  42 +++++
>  include/dt-bindings/reset/cix,sky1-rst.h      | 164 ++++++++++++++++++
>  5 files changed, 307 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml
>  create mode 100644 Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml
>  create mode 100644 include/dt-bindings/reset/cix,sky1-rst-fch.h
>  create mode 100644 include/dt-bindings/reset/cix,sky1-rst.h
> 
> diff --git a/Documentation/devicetree/bindings/mfd/syscon.yaml b/Documentation/devicetree/bindings/mfd/syscon.yaml
> index 55efb83b1495..be864a6b8efb 100644
> --- a/Documentation/devicetree/bindings/mfd/syscon.yaml
> +++ b/Documentation/devicetree/bindings/mfd/syscon.yaml
> @@ -170,6 +170,8 @@ properties:
>                - cirrus,ep7209-syscon1
>                - cirrus,ep7209-syscon2
>                - cirrus,ep7209-syscon3
> +              - cix,sky1-system-controller
> +              - cix,sky1-s5-system-controller
>                - cnxt,cx92755-uc
>                - freecom,fsg-cs2-system-controller
>                - fsl,imx93-aonmix-ns-syscfg
> @@ -254,6 +256,11 @@ properties:
>            - const: microchip,pic64gx-sysreg-scb
>            - const: microchip,mpfs-sysreg-scb
>            - const: syscon
> +      - items:
> +          - enum:
> +              - cix,sky1-system-controller
> +              - cix,sky1-s5-system-controller
> +          - const: syscon

Do not create your own style. Cix is not special. There is already an
enum for EVERYONE.

>  
>    reg:
>      maxItems: 1

Independent patch. Please do not combine unrelated patches into one.


> diff --git a/Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml b/Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml
> new file mode 100644
> index 000000000000..4323acdc2c45
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/cix,sky1-rst.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/reset/cix,sky1-rst.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: CIX Sky1 Reset Controller
> +
> +maintainers:
> +  - Gary Yang <gary.yang@cixtech.com>
> +
> +description: |
> +  CIX Sky1 reset controller can be used to reset various set of peripherals.
> +  There are two reset controllers, one is located in S0 domain, the other
> +  is located in S0 and S5 domain.
> +
> +  See also:
> +  - include/dt-bindings/reset/cix,sky1-rst.h
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - cix,sky1-rst
> +          - cix,sky1-rst-fch
> +
> +  '#reset-cells':
> +    const: 1

No resources? Then not a dedicated child node, but part of the syscon.
Fold this entire binding into the parent node.

> +
> +required:
> +  - compatible
> +  - '#reset-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    syscon@16000000 {
> +      compatible = "cix,sky1-s5-system-controller", "syscon",
> +                "simple-mfd";

Mess alignment.

> +      reg = <0x0 0x16000000 0x0 0x1000>;

Does not belong here.

> +      src: reset-controller {
> +        compatible = "cix,sky1-rst";
> +        #reset-cells = <1>;
> +      };

> +    };
> diff --git a/Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml b/Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml
> new file mode 100644
> index 000000000000..f6e2776e3f53
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/cix/cix,sky1-system-controller.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/cix/cix,sky1-system-controller.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cix Sky1 SoC system controller register region
> +
> +maintainers:
> +  - Gary Yang <gary.yang@cixtech.com>
> +
> +description:
> +  An wide assortment of registers of the system controller on Sky1 SoC,
> +  including resets and usb.
> +
> +allOf:
> +  - $ref: /schemas/mfd/syscon.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - contains:

What? No, don't come with random code. There is no single code like this.

> +          - enum:
> +              - cix,sky1-system-controller
> +              - cix,sky1-s5-system-controller
> +          - const: syscon
> +          - const: simple-mfd

Huh? You already documented this.

NAK, you are making random changes without any concept.

Read previous feedback. Really carefully.

Best regards,
Krzysztof