RE: [PATCH V2] dt-bindings: reset: Convert i.MX reset to json-schema

[Aisheng Dong]

> From: Anson Huang <Anson.Huang@xxxxxxx>
> Sent: Monday, May 18, 2020 6:04 PM
> 
> Convert the i.MX reset binding to DT schema format using json-schema.
> 
> Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>
> ---
> Changes since V1:
> 	- add the compatible strings per SoC;
> 	- use "reset-controller" as node name instead of src;
> 	- add interrupt items description.
> ---
>  .../devicetree/bindings/reset/fsl,imx-src.txt      | 49 -----------
>  .../devicetree/bindings/reset/fsl,imx-src.yaml     | 98
> ++++++++++++++++++++++
>  2 files changed, 98 insertions(+), 49 deletions(-)  delete mode 100644
> Documentation/devicetree/bindings/reset/fsl,imx-src.txt
>  create mode 100644
> Documentation/devicetree/bindings/reset/fsl,imx-src.yaml
> 
> diff --git a/Documentation/devicetree/bindings/reset/fsl,imx-src.txt
> b/Documentation/devicetree/bindings/reset/fsl,imx-src.txt
> deleted file mode 100644
> index 6ed79e6..0000000
> --- a/Documentation/devicetree/bindings/reset/fsl,imx-src.txt
> +++ /dev/null
> @@ -1,49 +0,0 @@
> -Freescale i.MX System Reset Controller
> -======================================
> -
> -Please also refer to reset.txt in this directory for common reset -controller
> binding usage.
> -
> -Required properties:
> -- compatible: Should be "fsl,<chip>-src"
> -- reg: should be register base and length as documented in the
> -  datasheet
> -- interrupts: Should contain SRC interrupt and CPU WDOG interrupt,
> -  in this order.
> -- #reset-cells: 1, see below
> -
> -example:
> -
> -src: src@20d8000 {
> -        compatible = "fsl,imx6q-src";
> -        reg = <0x020d8000 0x4000>;
> -        interrupts = <0 91 0x04 0 96 0x04>;
> -        #reset-cells = <1>;
> -};
> -
> -Specifying reset lines connected to IP modules
> -==============================================
> -
> -The system reset controller can be used to reset the GPU, VPU, -IPU, and
> OpenVG IP modules on i.MX5 and i.MX6 ICs. Those device -nodes should
> specify the reset line on the SRC in their resets -property, containing a phandle
> to the SRC device node and a -RESET_INDEX specifying which module to reset,
> as described in -reset.txt
> -
> -example:
> -
> -        ipu1: ipu@2400000 {
> -                resets = <&src 2>;
> -        };
> -        ipu2: ipu@2800000 {
> -                resets = <&src 4>;
> -        };
> -
> -The following RESET_INDEX values are valid for i.MX5:
> -GPU_RESET     0
> -VPU_RESET     1
> -IPU1_RESET    2
> -OPEN_VG_RESET 3
> -The following additional RESET_INDEX value is valid for i.MX6:
> -IPU2_RESET    4
> diff --git a/Documentation/devicetree/bindings/reset/fsl,imx-src.yaml
> b/Documentation/devicetree/bindings/reset/fsl,imx-src.yaml
> new file mode 100644
> index 0000000..7cd6095
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/fsl,imx-src.yaml
> @@ -0,0 +1,98 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2
> +---

[...]

> +title: Freescale i.MX System Reset Controller
> +
> +maintainers:
> +  - Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> +
> +description: |
> +  The system reset controller can be used to reset the GPU, VPU,
> +  IPU, and OpenVG IP modules on i.MX5 and i.MX6 ICs. Those device
> +  nodes should specify the reset line on the SRC in their resets
> +  property, containing a phandle to the SRC device node and a
> +  RESET_INDEX specifying which module to reset, as described in
> +  reset.txt
> +
> +  The following RESET_INDEX values are valid for i.MX5:
> +    GPU_RESET     0
> +    VPU_RESET     1
> +    IPU1_RESET    2
> +    OPEN_VG_RESET 3
> +  The following additional RESET_INDEX value is valid for i.MX6:
> +    IPU2_RESET    4
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - description: on i.MX51 the following compatible must be specified

Unnecessary description

Otherwise:

Reviewed-by: Dong Aisheng <aisheng.dong@xxxxxxx>

Regards
Aisheng

> +        items:
> +          - const: "fsl,imx51-src"
> +
> +      - description: on i.MX50 the following compatibles must be specified
> +        items:
> +          - const: "fsl,imx50-src"
> +          - const: "fsl,imx51-src"
> +
> +      - description: on i.MX53 the following compatibles must be specified
> +        items:
> +          - const: "fsl,imx53-src"
> +          - const: "fsl,imx51-src"
> +
> +      - description: on i.MX6Q the following compatibles must be specified
> +        items:
> +          - const: "fsl,imx6q-src"
> +          - const: "fsl,imx51-src"
> +
> +      - description: on i.MX6SX the following compatibles must be specified
> +        items:
> +          - const: "fsl,imx6sx-src"
> +          - const: "fsl,imx51-src"
> +
> +      - description: on i.MX6SL the following compatibles must be specified
> +        items:
> +          - const: "fsl,imx6sl-src"
> +          - const: "fsl,imx51-src"
> +
> +      - description: on i.MX6UL the following compatibles must be specified
> +        items:
> +          - const: "fsl,imx6ul-src"
> +          - const: "fsl,imx51-src"
> +
> +      - description: on i.MX6SLL the following compatibles must be specified
> +        items:
> +          - const: "fsl,imx6sll-src"
> +          - const: "fsl,imx51-src"
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    items:
> +      - description: SRC interrupt
> +      - description: CPU WDOG interrupts out of SRC
> +    minItems: 1
> +    maxItems: 2
> +
> +  '#reset-cells':
> +    const: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - '#reset-cells'
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    reset-controller@73fd0000 {
> +        compatible = "fsl,imx51-src";
> +        reg = <0x73fd0000 0x4000>;
> +        interrupts = <75>;
> +        #reset-cells = <1>;
> +    };
> --
> 2.7.4