From: Michael Reeves via B4 Relay <devnull+michael.reeves077.gmail.com@kernel.org>
To: Sven Peter <sven@kernel.org>, Janne Grunau <j@jannau.net>,
Neal Gompa <neal@gompa.dev>,
Jassi Brar <jassisinghbrar@gmail.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Jiri Kosina <jikos@kernel.org>,
Benjamin Tissoires <bentiss@kernel.org>,
Michael Reeves <michael.reeves077@gmail.com>
Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-input@vger.kernel.org, Hector Martin <marcan@marcan.st>
Subject: [PATCH v5 7/8] arm64: dts: apple: Add MTP DockChannel HID nodes
Date: Sun, 08 Nov 2026 07:25:12 +0000 [thread overview]
Message-ID: <20261108-b4-apple-mtp-keyboard-v5-7-e2c97b82669a@gmail.com> (raw)
In-Reply-To: <20261108-b4-apple-mtp-keyboard-v5-0-e2c97b82669a@gmail.com>
From: Michael Reeves <michael.reeves077@gmail.com>
Add disabled MTP nodes for the Apple SoCs used by M2 and M3 systems.
Each instance describes the RTKit ASC mailbox, MTP DART, DockChannel
mailbox, and DockChannel HID client. Board files can enable them on
machines that route internal input through MTP.
Co-developed-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Hector Martin <marcan@marcan.st>
Signed-off-by: Michael Reeves <michael.reeves077@gmail.com>
---
arch/arm64/boot/dts/apple/t602x-die0.dtsi | 47 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t6030.dtsi | 47 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t6031-die0.dtsi | 47 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t8112.dtsi | 47 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t8122.dtsi | 48 +++++++++++++++++++++++++++++++
5 files changed, 236 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/t602x-die0.dtsi b/arch/arm64/boot/dts/apple/t602x-die0.dtsi
index 05819755a18f..3ae7f59c91f9 100644
--- a/arch/arm64/boot/dts/apple/t602x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t602x-die0.dtsi
@@ -162,6 +162,53 @@ pinctrl_smc: pinctrl@2a2820000 {
<AIC_IRQ 0 857 IRQ_TYPE_LEVEL_HIGH>;
};
+ mtp_mbox: mbox@2a9408000 {
+ compatible = "apple,t6020-asc-mailbox", "apple,asc-mailbox-v4";
+ reg = <0x2 0xa9408000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 0 693 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 0 694 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 0 695 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 0 696 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "send-empty", "send-not-empty",
+ "recv-empty", "recv-not-empty";
+ #mbox-cells = <0>;
+ status = "disabled";
+ };
+
+ mtp_dart: iommu@2a9808000 {
+ compatible = "apple,t6020-dart", "apple,t8110-dart";
+ reg = <0x2 0xa9808000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 0 676 IRQ_TYPE_LEVEL_HIGH>;
+ #iommu-cells = <1>;
+ status = "disabled";
+ };
+
+ mtp_dockchannel: mailbox@2a9b14000 {
+ compatible = "apple,t6020-dockchannel", "apple,t8112-dockchannel";
+ reg = <0x2 0xa9b14000 0x0 0x4000>,
+ <0x2 0xa9b30000 0x0 0x4000>,
+ <0x2 0xa9b34000 0x0 0x4000>;
+ reg-names = "irq", "config", "data";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 0 677 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <0>;
+ apple,irq-index = <1>;
+ status = "disabled";
+ };
+
+ mtp_hid: hid@2a9400000 {
+ compatible = "apple,t6020-dockchannel-hid", "apple,t8112-dockchannel-hid";
+ reg = <0x2 0xa9400000 0x0 0x4000>,
+ <0x2 0xa9c00000 0x0 0x100000>;
+ reg-names = "asc", "sram";
+ mboxes = <&mtp_mbox>, <&mtp_dockchannel>;
+ mbox-names = "asc", "dockchannel";
+ iommus = <&mtp_dart 1>;
+ status = "disabled";
+ };
+
sio_dart: iommu@39b008000 {
compatible = "apple,t6020-dart", "apple,t8110-dart";
reg = <0x3 0x9b008000 0x0 0x8000>;
diff --git a/arch/arm64/boot/dts/apple/t6030.dtsi b/arch/arm64/boot/dts/apple/t6030.dtsi
index 524e532830e2..15c102758097 100644
--- a/arch/arm64/boot/dts/apple/t6030.dtsi
+++ b/arch/arm64/boot/dts/apple/t6030.dtsi
@@ -492,6 +492,53 @@ wdt: watchdog@3642b0000 {
interrupts = <AIC_IRQ 480 IRQ_TYPE_LEVEL_HIGH>;
};
+ mtp_mbox: mbox@37a408000 {
+ compatible = "apple,t6030-asc-mailbox", "apple,asc-mailbox-v4";
+ reg = <0x3 0x7a408000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 953 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 954 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 955 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 956 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "send-empty", "send-not-empty",
+ "recv-empty", "recv-not-empty";
+ #mbox-cells = <0>;
+ status = "disabled";
+ };
+
+ mtp_dart: iommu@37a808000 {
+ compatible = "apple,t6030-dart", "apple,t8110-dart";
+ reg = <0x3 0x7a808000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 937 IRQ_TYPE_LEVEL_HIGH>;
+ #iommu-cells = <1>;
+ status = "disabled";
+ };
+
+ mtp_dockchannel: mailbox@37ab14000 {
+ compatible = "apple,t6030-dockchannel", "apple,t8112-dockchannel";
+ reg = <0x3 0x7ab14000 0x0 0x4000>,
+ <0x3 0x7ab30000 0x0 0x4000>,
+ <0x3 0x7ab34000 0x0 0x4000>;
+ reg-names = "irq", "config", "data";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 939 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <0>;
+ apple,irq-index = <1>;
+ status = "disabled";
+ };
+
+ mtp_hid: hid@37a400000 {
+ compatible = "apple,t6030-dockchannel-hid", "apple,t8112-dockchannel-hid";
+ reg = <0x3 0x7a400000 0x0 0x4000>,
+ <0x3 0x7ac00000 0x0 0x100000>;
+ reg-names = "asc", "sram";
+ mboxes = <&mtp_mbox>, <&mtp_dockchannel>;
+ mbox-names = "asc", "dockchannel";
+ iommus = <&mtp_dart 1>;
+ status = "disabled";
+ };
+
pinctrl_smc: pinctrl@36c820000 {
compatible = "apple,t6030-pinctrl", "apple,t8103-pinctrl";
reg = <0x3 0x6c820000 0x0 0x4000>;
diff --git a/arch/arm64/boot/dts/apple/t6031-die0.dtsi b/arch/arm64/boot/dts/apple/t6031-die0.dtsi
index b14443436e26..e2ad05598a46 100644
--- a/arch/arm64/boot/dts/apple/t6031-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t6031-die0.dtsi
@@ -207,4 +207,51 @@ serial0: serial@391200000 {
status = "disabled";
};
+
+ mtp_mbox: mbox@2ac408000 {
+ compatible = "apple,t6031-asc-mailbox", "apple,asc-mailbox-v4";
+ reg = <0x2 0xac408000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 0 692 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 0 693 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 0 694 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 0 695 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "send-empty", "send-not-empty",
+ "recv-empty", "recv-not-empty";
+ #mbox-cells = <0>;
+ status = "disabled";
+ };
+
+ mtp_dart: iommu@2ac808000 {
+ compatible = "apple,t6031-dart", "apple,t8110-dart";
+ reg = <0x2 0xac808000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 0 675 IRQ_TYPE_LEVEL_HIGH>;
+ #iommu-cells = <1>;
+ status = "disabled";
+ };
+
+ mtp_dockchannel: mailbox@2acb14000 {
+ compatible = "apple,t6031-dockchannel", "apple,t8112-dockchannel";
+ reg = <0x2 0xacb14000 0x0 0x4000>,
+ <0x2 0xacb30000 0x0 0x4000>,
+ <0x2 0xacb34000 0x0 0x4000>;
+ reg-names = "irq", "config", "data";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 0 676 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <0>;
+ apple,irq-index = <1>;
+ status = "disabled";
+ };
+
+ mtp_hid: hid@2ac400000 {
+ compatible = "apple,t6031-dockchannel-hid", "apple,t8112-dockchannel-hid";
+ reg = <0x2 0xac400000 0x0 0x4000>,
+ <0x2 0xacc00000 0x0 0x100000>;
+ reg-names = "asc", "sram";
+ mboxes = <&mtp_mbox>, <&mtp_dockchannel>;
+ mbox-names = "asc", "dockchannel";
+ iommus = <&mtp_dart 1>;
+ status = "disabled";
+ };
};
diff --git a/arch/arm64/boot/dts/apple/t8112.dtsi b/arch/arm64/boot/dts/apple/t8112.dtsi
index ec248ca052cb..06b3a836ae9b 100644
--- a/arch/arm64/boot/dts/apple/t8112.dtsi
+++ b/arch/arm64/boot/dts/apple/t8112.dtsi
@@ -987,6 +987,53 @@ pinctrl_aop: pinctrl@24a820000 {
<AIC_IRQ 307 IRQ_TYPE_LEVEL_HIGH>;
};
+ mtp_mbox: mbox@24e408000 {
+ compatible = "apple,t8112-asc-mailbox", "apple,asc-mailbox-v4";
+ reg = <0x2 0x4e408000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 864 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 865 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 866 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 867 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "send-empty", "send-not-empty",
+ "recv-empty", "recv-not-empty";
+ #mbox-cells = <0>;
+ status = "disabled";
+ };
+
+ mtp_dart: iommu@24e808000 {
+ compatible = "apple,t8110-dart";
+ reg = <0x2 0x4e808000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 848 IRQ_TYPE_LEVEL_HIGH>;
+ #iommu-cells = <1>;
+ status = "disabled";
+ };
+
+ mtp_dockchannel: mailbox@24eb14000 {
+ compatible = "apple,t8112-dockchannel";
+ reg = <0x2 0x4eb14000 0x0 0x4000>,
+ <0x2 0x4eb30000 0x0 0x4000>,
+ <0x2 0x4eb34000 0x0 0x4000>;
+ reg-names = "irq", "config", "data";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 850 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <0>;
+ apple,irq-index = <1>;
+ status = "disabled";
+ };
+
+ mtp_hid: hid@24e400000 {
+ compatible = "apple,t8112-dockchannel-hid";
+ reg = <0x2 0x4e400000 0x0 0x4000>,
+ <0x2 0x4ec00000 0x0 0x100000>;
+ reg-names = "asc", "sram";
+ mboxes = <&mtp_mbox>, <&mtp_dockchannel>;
+ mbox-names = "asc", "dockchannel";
+ iommus = <&mtp_dart 1>;
+ status = "disabled";
+ };
+
ans_mbox: mbox@277408000 {
compatible = "apple,t8112-asc-mailbox", "apple,asc-mailbox-v4";
reg = <0x2 0x77408000 0x0 0x4000>;
diff --git a/arch/arm64/boot/dts/apple/t8122.dtsi b/arch/arm64/boot/dts/apple/t8122.dtsi
index 52257fa22631..64abef536f24 100644
--- a/arch/arm64/boot/dts/apple/t8122.dtsi
+++ b/arch/arm64/boot/dts/apple/t8122.dtsi
@@ -454,6 +454,54 @@ pinctrl_aop: pinctrl@2f4824000 {
apple,npins = <54>;
};
+
+ mtp_mbox: mbox@2fa408000 {
+ compatible = "apple,t8122-asc-mailbox", "apple,asc-mailbox-v4";
+ reg = <0x2 0xfa408000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 838 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 839 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 840 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 841 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "send-empty", "send-not-empty",
+ "recv-empty", "recv-not-empty";
+ #mbox-cells = <0>;
+ status = "disabled";
+ };
+
+ mtp_dart: iommu@2fa808000 {
+ compatible = "apple,t8122-dart", "apple,t8110-dart";
+ reg = <0x2 0xfa808000 0x0 0x4000>;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 822 IRQ_TYPE_LEVEL_HIGH>;
+ #iommu-cells = <1>;
+ status = "disabled";
+ };
+
+ mtp_dockchannel: mailbox@2fab14000 {
+ compatible = "apple,t8122-dockchannel", "apple,t8112-dockchannel";
+ reg = <0x2 0xfab14000 0x0 0x4000>,
+ <0x2 0xfab30000 0x0 0x4000>,
+ <0x2 0xfab34000 0x0 0x4000>;
+ reg-names = "irq", "config", "data";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 824 IRQ_TYPE_LEVEL_HIGH>;
+ #mbox-cells = <0>;
+ apple,irq-index = <1>;
+ status = "disabled";
+ };
+
+ mtp_hid: hid@2fa400000 {
+ compatible = "apple,t8122-dockchannel-hid",
+ "apple,t8112-dockchannel-hid";
+ reg = <0x2 0xfa400000 0x0 0x4000>,
+ <0x2 0xfac00000 0x0 0x100000>;
+ reg-names = "asc", "sram";
+ mboxes = <&mtp_mbox>, <&mtp_dockchannel>;
+ mbox-names = "asc", "dockchannel";
+ iommus = <&mtp_dart 1>;
+ status = "disabled";
+ };
};
timer {
--
2.56.0
next prev parent reply other threads:[~2026-11-08 7:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-08 7:25 [PATCH v5 0/8] Add support for Apple Silicon DockChannel internal keyboards Michael Reeves via B4 Relay
2026-11-08 7:25 ` [PATCH v5 1/8] dt-bindings: mailbox: apple: Add DockChannel mailbox Michael Reeves via B4 Relay
2026-11-08 7:25 ` [PATCH v5 2/8] dt-bindings: input: apple: Add DockChannel HID transport Michael Reeves via B4 Relay
2026-11-08 7:25 ` [PATCH v5 3/8] mailbox: apple: Add DockChannel FIFO controller Michael Reeves via B4 Relay
2026-11-08 7:25 ` [PATCH v5 4/8] soc: apple: rtkit: Add tracekit endpoint Michael Reeves via B4 Relay
2026-11-08 7:25 ` [PATCH v5 5/8] HID: apple: Add support for DockChannel HID keyboards Michael Reeves via B4 Relay
2026-11-08 7:25 ` [PATCH v5 6/8] HID: apple: Add DockChannel HID transport driver Michael Reeves via B4 Relay
2026-11-08 7:25 ` Michael Reeves via B4 Relay [this message]
2026-11-08 7:25 ` [PATCH v5 8/8] arm64: dts: apple: Enable DockChannel HID on M2 and M3 laptops Michael Reeves via B4 Relay
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