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SubjectRe: [PATCH 2/3] dt-bindings: spi: apple,spi: Add binding for Apple SPI controllers
On Sun, Dec 12, 2021 at 12:47:25PM +0900, Hector Martin wrote:
> The Apple SPI controller is present in SoCs such as the M1 (t8103) and
> M1 Pro/Max (t600x). This controller uses one IRQ and one clock, and
> doesn't need any special properties, so the binding is trivial.
>
> Signed-off-by: Hector Martin <marcan@marcan.st>
> ---
> .../devicetree/bindings/spi/apple,spi.yaml | 63 +++++++++++++++++++
> 1 file changed, 63 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/spi/apple,spi.yaml
>
> diff --git a/Documentation/devicetree/bindings/spi/apple,spi.yaml b/Documentation/devicetree/bindings/spi/apple,spi.yaml
> new file mode 100644
> index 000000000000..bcbdc8943e92
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/apple,spi.yaml
> @@ -0,0 +1,63 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/spi/apple,spi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Apple ARM SoC SPI controller
> +
> +allOf:
> + - $ref: "spi-controller.yaml#"
> +
> +maintainers:
> + - Hector Martin <marcan@marcan.st>
> +
> +properties:
> + compatible:
> + items:
> + - enum:
> + - apple,t8103-spi
> + - apple,t6000-spi
> + - const: apple,spi
> +
> + reg:
> + maxItems: 1
> +
> + clocks:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + power-domains:
> + maxItems: 1
> +
> +required:
> + - compatible
> + - reg
> + - clocks
> + - interrupts

> + - '#address-cells'
> + - '#size-cells'

Already required by spi-controller.yaml. Otherwise,

Reviewed-by: Rob Herring <robh@kernel.org>

> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/apple-aic.h>
> + #include <dt-bindings/interrupt-controller/irq.h>
> +
> + soc {
> + #address-cells = <2>;
> + #size-cells = <2>;
> +
> + spi: spi@39b104000 {
> + compatible = "apple,t6000-spi", "apple,spi";
> + reg = <0x3 0x9b104000 0x0 0x4000>;
> + interrupt-parent = <&aic>;
> + interrupts = <AIC_IRQ 0 1107 IRQ_TYPE_LEVEL_HIGH>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clocks = <&clk>;
> + };
> + };
> --
> 2.33.0
>
>

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