> From: Hector Martin <marcan@xxxxxxxxx>
> Date: Thu, 9 Dec 2021 14:50:48 +0900
>
> Much as we've done with other blocks, let's introduce generic
> compatibles so drivers can bind to those and still work with future
> SoCs, as long as the hardware remains the same. Also go ahead and add
> compatibles for the new t600x SoCs (we group those as t6000).
>
> Note that no DTs instantiate devices with this binding yet.
I think this makes sense. There is no OpenBSD driver for this yet and
my U-Boot driver has not been submitted upstream yet. So I think
there are no real backwards compatibility issues.
Reviewed-by: Mark Kettenis <kettenis@xxxxxxxxxxx>
>
> Signed-off-by: Hector Martin <marcan@xxxxxxxxx>
> ---
> .../devicetree/bindings/mailbox/apple,mailbox.yaml | 12 +++++++++---
> 1 file changed, 9 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml b/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
> index 2c1704b34e7a..58007c789671 100644
> --- a/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
> +++ b/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
> @@ -27,14 +27,20 @@ properties:
> for example for the display controller, the system management
> controller and the NVMe coprocessor.
> items:
> - - const: apple,t8103-asc-mailbox
> + - enum:
> + - apple,t8103-asc-mailbox
> + - apple,t6000-asc-mailbox
> + - const: apple,asc-mailbox
>
> - description:
> M3 mailboxes are an older variant with a slightly different MMIO
> interface still found on the M1. It is used for the Thunderbolt
> co-processors.
> items:
> - - const: apple,t8103-m3-mailbox
> + - enum:
> + - apple,t8103-m3-mailbox
> + - apple,t6000-m3-mailbox
> + - const: apple,m3-mailbox
>
> reg:
> maxItems: 1
> @@ -68,7 +74,7 @@ additionalProperties: false
> examples:
> - |
> mailbox@77408000 {
> - compatible = "apple,t8103-asc-mailbox";
> + compatible = "apple,t8103-asc-mailbox", "apple,asc-mailbox";
> reg = <0x77408000 0x4000>;
> interrupts = <1 583 4>, <1 584 4>, <1 585 4>, <1 586 4>;
> interrupt-names = "send-empty", "send-not-empty",
> --
> 2.33.0
>
>
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