Re: [PATCH v4 01/11] dt-bindings: wiiu: Document the Nintendo Wii U devicetree

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On Sat, Nov 19, 2022 at 10:30:31PM +1100, Ash Logan wrote:
> Adds schema for the various Wii U devicetree nodes used.
> 
> Signed-off-by: Ash Logan <ash@xxxxxxxxxxxx>
> ---
> v3->v4: Rework to match expected style and conciceness.
> 
>  .../bindings/powerpc/nintendo/wiiu.yaml       | 25 +++++++++
>  .../powerpc/nintendo/wiiu/espresso-pic.yaml   | 48 ++++++++++++++++
>  .../bindings/powerpc/nintendo/wiiu/gpu7.yaml  | 42 ++++++++++++++
>  .../powerpc/nintendo/wiiu/latte-ahci.yaml     | 50 +++++++++++++++++
>  .../powerpc/nintendo/wiiu/latte-dsp.yaml      | 35 ++++++++++++
>  .../powerpc/nintendo/wiiu/latte-pic.yaml      | 55 +++++++++++++++++++
>  .../powerpc/nintendo/wiiu/latte-sdhci.yaml    | 46 ++++++++++++++++
>  .../bindings/powerpc/nintendo/wiiu/latte.yaml | 31 +++++++++++
>  .../devicetree/bindings/usb/generic-ehci.yaml |  1 +
>  9 files changed, 333 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu.yaml
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/espresso-pic.yaml
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/gpu7.yaml
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-ahci.yaml
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-dsp.yaml
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-pic.yaml
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-sdhci.yaml
>  create mode 100644 Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte.yaml
> 
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu.yaml
> new file mode 100644
> index 000000000000..23703b1052d0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu.yaml
> @@ -0,0 +1,25 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii U bindings

Everything is a binding, so drop 'bindings'. 

> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |

Don't need '|' if no formatting.

> +  Nintendo Wii U video game console binding.
> +
> +properties:
> +  $nodename:
> +    const: "/"
> +
> +  compatible:
> +    const: nintendo,wiiu
> +
> +additionalProperties: true
> +
> +...
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/espresso-pic.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/espresso-pic.yaml
> new file mode 100644
> index 000000000000..476a8ccda7a1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/espresso-pic.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu/espresso-pic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii U "Espresso" interrupt controller
> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |
> +  Interrupt controller found on the Nintendo Wii U for the "Espresso" processor.
> +
> +allOf:
> +  - $ref: "/schemas/interrupt-controller.yaml#"

Drop quotes.

> +
> +properties:
> +  compatible:
> +    const: nintendo,espresso-pic
> +
> +  '#interrupt-cells':
> +    # Interrupt numbers 0-32 in one cell
> +    const: 1
> +
> +  interrupt-controller: true
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - '#interrupt-cells'
> +  - interrupt-controller
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    interrupt-controller@c000078 {
> +        compatible = "nintendo,espresso-pic";
> +        reg = <0x0c000078 0x18>;
> +        #interrupt-cells = <1>;
> +        interrupt-controller;
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/gpu7.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/gpu7.yaml
> new file mode 100644
> index 000000000000..d44ebe0d866c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/gpu7.yaml
> @@ -0,0 +1,42 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu/gpu7.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii U Latte "GPU7" graphics processor
> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |
> +  GPU7 graphics processor, also known as "GX2", found in the Latte multifunction chip of the

Wrap lines at 80 unless some advantage to 100.

> +  Nintendo Wii U.
> +
> +properties:
> +  compatible:
> +    const: nintendo,latte-gpu7
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    gpu@c200000 {
> +        compatible = "nintendo,latte-gpu7";
> +        reg = <0x0c200000 0x80000>;
> +        interrupts = <2>;
> +        interrupt-parent = <&espresso_pic>;
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-ahci.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-ahci.yaml
> new file mode 100644
> index 000000000000..a53971a11e89
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-ahci.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu/latte-ahci.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii U Latte AHCI controller
> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |
> +  Nintendo Wii U AHCI SATA controller, as found in the Latte chip.
> +
> +allOf:
> +  - $ref: "/schemas/ata/ahci-common.yaml#"
> +
> +properties:
> +  compatible:
> +    const: nintendo,latte-ahci
> +
> +  reg:
> +    items:
> +      - description: |
> +          HBA memory registers. Note that unlike the spec, space for only 6 ports exist, with 2 vendor
> +          registers afterwards, thus register space should be 0x408 long (0x100+0x80*6+0x8).
> +
> +  interrupts:
> +    items:
> +      - description: Main HBA interrupt
> +      - description: Vendor debugging interrupt
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    sata@d160400 {
> +        compatible = "nintendo,latte-ahci";
> +        reg = <0x0d160400 0x408>;
> +
> +        interrupt-parent = <&latte_pic>;
> +        interrupts = <38>, <28>;
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-dsp.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-dsp.yaml
> new file mode 100644
> index 000000000000..772afe0c298c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-dsp.yaml
> @@ -0,0 +1,35 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu/latte-dsp.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii U Latte DSP
> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |
> +  Nintendo Wii U digital signal processor, as found in the Latte chip.
> +
> +properties:
> +  compatible:
> +    const: nintendo,latte-dsp
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    dsp@c005000 {
> +        compatible = "nintendo,latte-dsp";
> +        reg = <0x0c005000 0x200>;
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-pic.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-pic.yaml
> new file mode 100644
> index 000000000000..4b71d6b9b14d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-pic.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu/latte-pic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii U Latte interrupt controller
> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |
> +  Interrupt controller found on the Nintendo Wii U for the "Latte" devices.
> +
> +allOf:
> +  - $ref: "/schemas/interrupt-controller.yaml#"
> +
> +properties:
> +  compatible:
> +    const: nintendo,latte-pic
> +
> +  '#interrupt-cells':
> +    # Interrupt numbers 0-64 in one cell.
> +    const: 1
> +
> +  interrupt-controller: true
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    items:
> +      - description: Cascade interrupt for Espresso PIC
> +
> +required:
> +  - compatible
> +  - '#interrupt-cells'
> +  - interrupt-controller
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    interrupt-controller@d800440 {
> +        compatible = "nintendo,latte-pic";
> +        #interrupt-cells = <1>;
> +        interrupt-controller;
> +        reg = <0x0d800440 0x30>;
> +
> +        interrupt-parent = <&espresso_pic>;
> +        interrupts = <24>;
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-sdhci.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-sdhci.yaml
> new file mode 100644
> index 000000000000..25d474fca679
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte-sdhci.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu/latte-sdhci.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii U Latte SD Host controller
> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |
> +  SDHCI hosts found on the Nintendo Wii U's Latte SoC for SD cards and SDIO devices.
> +
> +allOf:
> +  - $ref: "/schemas/mmc/mmc-controller.yaml#"
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: nintendo,latte-sdhci
> +      - const: sdhci

Just 'sdhci' is not too useful. *All* SDHCI controllers have quirks.

> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    mmc@d070000 {
> +        compatible = "nintendo,latte-sdhci", "sdhci";
> +        reg = <0x0d070000 0x200>;
> +        interrupts = <7>;
> +        interrupt-parent = <&latte_pic>;
> +    };
> +...
> diff --git a/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte.yaml b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte.yaml
> new file mode 100644
> index 000000000000..6fdf93622fcc
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/nintendo/wiiu/latte.yaml
> @@ -0,0 +1,31 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/nintendo/wiiu/latte.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Latte system bus
> +
> +maintainers:
> +  - Ash Logan <ash@xxxxxxxxxxxx>
> +  - Emmanuel Gil Peyrot <linkmauve@xxxxxxxxxxxx>
> +
> +description: |
> +  Latte multi-function SoC, containing many of the devices found on the Nintendo Wii U.
> +
> +allOf:
> +  - $ref: "/schemas/simple-bus.yaml#"
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: nintendo,latte
> +      - const: simple-bus

If truly 'simple', then you don't need 'nintendo,latte'.

Otherwise, you need a custom 'select' schema to not select all cases of 
'simple-bus'.

> +
> +

one blank line

> +required:
> +  - compatible
> +
> +additionalProperties: true
> +
> +...
> diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> index c5f629c5bc61..9f69b5ab21ff 100644
> --- a/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> +++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml
> @@ -69,6 +69,7 @@ properties:
>                - ibm,usb-ehci-440epx
>                - ibm,usb-ehci-460ex
>                - nintendo,hollywood-usb-ehci
> +              - nintendo,latte-ehci
>                - st,spear600-ehci
>            - const: usb-ehci
>        - enum:
> -- 
> 2.38.1
> 
> 



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