Re: [PATCH 3/3] dt-bindings: arm: mediatek: infracfg: Convert to DT schema

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On 19/04/2022 20:09, Yassine Oudjana wrote:
> From: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
> 
> Convert infracfg bindings to DT schema format. Not all drivers
> currently implement resets, so #reset-cells is made a required
> property only for those that do. Using power-controller in the
> example node name makes #power-domain-cells required causing
> a dt_binding_check error. To solve this, the node is renamed to
> syscon@10001000.
> 
> Signed-off-by: Yassine Oudjana <y.oudjana@xxxxxxxxxxxxxx>
> ---
>  .../arm/mediatek/mediatek,infracfg.txt        | 42 ----------
>  .../arm/mediatek/mediatek,infracfg.yaml       | 79 +++++++++++++++++++
>  2 files changed, 79 insertions(+), 42 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
>  create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
> 
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
> deleted file mode 100644
> index f66bd720571d..000000000000
> --- a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.txt
> +++ /dev/null
> @@ -1,42 +0,0 @@
> -Mediatek infracfg controller
> -============================
> -
> -The Mediatek infracfg controller provides various clocks and reset
> -outputs to the system.
> -
> -Required Properties:
> -
> -- compatible: Should be one of:
> -	- "mediatek,mt2701-infracfg", "syscon"
> -	- "mediatek,mt2712-infracfg", "syscon"
> -	- "mediatek,mt6765-infracfg", "syscon"
> -	- "mediatek,mt6779-infracfg_ao", "syscon"
> -	- "mediatek,mt6797-infracfg", "syscon"
> -	- "mediatek,mt7622-infracfg", "syscon"
> -	- "mediatek,mt7623-infracfg", "mediatek,mt2701-infracfg", "syscon"
> -	- "mediatek,mt7629-infracfg", "syscon"
> -	- "mediatek,mt7986-infracfg", "syscon"
> -	- "mediatek,mt8135-infracfg", "syscon"
> -	- "mediatek,mt8167-infracfg", "syscon"
> -	- "mediatek,mt8173-infracfg", "syscon"
> -	- "mediatek,mt8183-infracfg", "syscon"
> -	- "mediatek,mt8516-infracfg", "syscon"
> -- #clock-cells: Must be 1
> -- #reset-cells: Must be 1
> -
> -The infracfg controller uses the common clk binding from
> -Documentation/devicetree/bindings/clock/clock-bindings.txt
> -The available clocks are defined in dt-bindings/clock/mt*-clk.h.
> -Also it uses the common reset controller binding from
> -Documentation/devicetree/bindings/reset/reset.txt.
> -The available reset outputs are defined in
> -dt-bindings/reset/mt*-resets.h
> -
> -Example:
> -
> -infracfg: power-controller@10001000 {
> -	compatible = "mediatek,mt8173-infracfg", "syscon";
> -	reg = <0 0x10001000 0 0x1000>;
> -	#clock-cells = <1>;
> -	#reset-cells = <1>;
> -};
> diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
> new file mode 100644
> index 000000000000..4f43fe9f103e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,infracfg.yaml
> @@ -0,0 +1,79 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,infracfg.yaml#";
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#";
> +
> +title: MediaTek Infrastructure System Configuration Controller
> +
> +maintainers:
> +  - Matthias Brugger <matthias.bgg@xxxxxxxxx>
> +
> +description:
> +  The Mediatek infracfg controller provides various clocks and reset outputs
> +  to the system.

Mention here the headers with clock and reset constants. The same for
patches 1 and 2.

> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - mediatek,mt2701-infracfg
> +              - mediatek,mt2712-infracfg
> +              - mediatek,mt6765-infracfg
> +              - mediatek,mt6779-infracfg_ao
> +              - mediatek,mt6797-infracfg
> +              - mediatek,mt7622-infracfg
> +              - mediatek,mt7629-infracfg
> +              - mediatek,mt7986-infracfg
> +              - mediatek,mt8135-infracfg
> +              - mediatek,mt8167-infracfg
> +              - mediatek,mt8173-infracfg
> +              - mediatek,mt8183-infracfg
> +              - mediatek,mt8516-infracfg
> +          - const: syscon
> +      - items:
> +          - const: mediatek,mt7623-infracfg
> +          - const: mediatek,mt2701-infracfg
> +          - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +  '#clock-cells':
> +    const: 1
> +
> +  '#reset-cells':
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - '#clock-cells'
> +
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - mediatek,mt2701-infracfg
> +          - mediatek,mt2712-infracfg
> +          - mediatek,mt7622-infracfg
> +          - mediatek,mt7986-infracfg
> +          - mediatek,mt8135-infracfg
> +          - mediatek,mt8173-infracfg
> +          - mediatek,mt8183-infracfg
> +then:
> +  required:
> +    - '#reset-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    infracfg: syscon@10001000 {

reset-controller or clock-controller instead, because syscon is for
blocks having only the syscon function.

Best regards,
Krzysztof



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