From 32299eb03414cbb475ce3068b64db6d306df5b88 Mon Sep 17 00:00:00 2001 From: Nick Chan Date: Thu, 21 Aug 2025 23:56:38 +0800 Subject: [PATCH] dt-bindings: mailbox: apple,mailbox: Add ASC mailboxes on Apple A11 and T2 Add bindings for ASC mailboxes as found on Apple A11 and T2 SoCs. These mailboxes are used for coprocessors including Secure Enclave Processor (SEP), the NVMe coprocessor and the system management controller. Acked-by: Rob Herring (Arm) Signed-off-by: Nick Chan Link: https://lore.kernel.org/r/20250821-t8015-nvme-v3-1-14a4178adf68@gmail.com Signed-off-by: Sven Peter --- .../devicetree/bindings/mailbox/apple,mailbox.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml b/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml index 474c1a0f99f34..bdf58f03b8483 100644 --- a/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml +++ b/Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml @@ -33,6 +33,13 @@ properties: - apple,t6000-asc-mailbox - const: apple,asc-mailbox-v4 + - description: + An older ASC mailbox interface found on T2 and A11 that is also + used for the NVMe coprocessor and the system management + controller. + items: + - const: apple,t8015-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 -- 2.47.3