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>,
Hector Martin <marcan@marcan.st>,
Michael Reeves <michael.reeves077@gmail.com>,
"Joerg Roedel (AMD)" <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Jiri Kosina <jikos@kernel.org>,
Benjamin Tissoires <bentiss@kernel.org>
Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
iommu@lists.linux.dev, linux-input@vger.kernel.org,
Yureka Lilian <yureka@cyberchaos.dev>,
Julian Braha <julianbraha@gmail.com>,
Sasha Finkelstein <k@chaosmail.tech>
Subject: [PATCH v2 09/10] arm64: dts: apple: Add MTP DockChannel HID nodes
Date: Fri, 18 Sep 2026 21:06:52 +1000 [thread overview]
Message-ID: <20260918-apple-mtp-keyboard-final-v2-9-a5c685e50b60@gmail.com> (raw)
In-Reply-To: <20260918-apple-mtp-keyboard-final-v2-0-a5c685e50b60@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 | 46 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t6030.dtsi | 46 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t6031-die0.dtsi | 46 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t8112.dtsi | 46 ++++++++++++++++++++++++++++++
arch/arm64/boot/dts/apple/t8122.dtsi | 47 +++++++++++++++++++++++++++++++
5 files changed, 231 insertions(+)
diff --git a/arch/arm64/boot/dts/apple/t602x-die0.dtsi b/arch/arm64/boot/dts/apple/t602x-die0.dtsi
index c33623f0e..5f62d0a9c 100644
--- a/arch/arm64/boot/dts/apple/t602x-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t602x-die0.dtsi
@@ -161,6 +161,52 @@ 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>;
+ 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 = "coproc-asc", "coproc-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 dda9568af..e460e547e 100644
--- a/arch/arm64/boot/dts/apple/t6030.dtsi
+++ b/arch/arm64/boot/dts/apple/t6030.dtsi
@@ -474,6 +474,52 @@ 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>;
+ 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 = "coproc-asc", "coproc-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 47d08672a..d7a6d72b3 100644
--- a/arch/arm64/boot/dts/apple/t6031-die0.dtsi
+++ b/arch/arm64/boot/dts/apple/t6031-die0.dtsi
@@ -195,3 +195,49 @@ serial0: serial@391200000 {
power-domains = <&ps_uart0>;
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>;
+ 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 = "coproc-asc", "coproc-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 ec248ca05..d5c2f35ef 100644
--- a/arch/arm64/boot/dts/apple/t8112.dtsi
+++ b/arch/arm64/boot/dts/apple/t8112.dtsi
@@ -987,6 +987,52 @@ 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>;
+ status = "disabled";
+ };
+
+ mtp_hid: hid@24e400000 {
+ compatible = "apple,t8112-dockchannel-hid";
+ reg = <0x2 0x4e400000 0x0 0x4000>,
+ <0x2 0x4ec00000 0x0 0x100000>;
+ reg-names = "coproc-asc", "coproc-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 1ee61c5b3..47102f431 100644
--- a/arch/arm64/boot/dts/apple/t8122.dtsi
+++ b/arch/arm64/boot/dts/apple/t8122.dtsi
@@ -438,6 +438,53 @@ pinctrl_aop: pinctrl@2f4824000 {
<AIC_IRQ 351 IRQ_TYPE_LEVEL_HIGH>,
<AIC_IRQ 352 IRQ_TYPE_LEVEL_HIGH>;
};
+
+ 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>;
+ 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 = "coproc-asc", "coproc-sram";
+ mboxes = <&mtp_mbox>, <&mtp_dockchannel>;
+ mbox-names = "asc", "dockchannel";
+ iommus = <&mtp_dart 1>;
+ status = "disabled";
+ };
};
};
--
2.55.0
next prev parent reply other threads:[~2026-09-18 11:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-18 11:06 [PATCH v2 00/10] Add support for Apple Silicon DockChannel internal keyboards Michael Reeves via B4 Relay
2026-09-18 11:06 ` [PATCH v2 01/10] dt-bindings: mailbox: apple: Add M3 ASC mailbox compatibles Michael Reeves via B4 Relay
2026-09-18 11:06 ` [PATCH v2 02/10] dt-bindings: mailbox: apple: Add DockChannel mailbox Michael Reeves via B4 Relay
2026-09-18 11:06 ` [PATCH v2 03/10] dt-bindings: iommu: apple,dart: Add M3 compatibles Michael Reeves via B4 Relay
2026-09-18 11:06 ` [PATCH v2 04/10] dt-bindings: input: apple: Add DockChannel HID transport Michael Reeves via B4 Relay
2026-09-18 11:06 ` [PATCH v2 05/10] mailbox: apple: Add DockChannel FIFO controller Michael Reeves via B4 Relay
2026-09-18 13:07 ` Yureka Lilian
2026-09-18 11:06 ` [PATCH v2 06/10] soc: apple: rtkit: Add tracekit endpoint Michael Reeves via B4 Relay
2026-09-18 11:06 ` [PATCH v2 07/10] HID: apple: Add support for DockChannel HID keyboards Michael Reeves via B4 Relay
2026-09-18 11:06 ` [PATCH v2 08/10] HID: apple: Add DockChannel HID transport driver Michael Reeves via B4 Relay
2026-09-18 11:06 ` Michael Reeves via B4 Relay [this message]
2026-09-18 11:06 ` [PATCH v2 10/10] arm64: dts: apple: Enable DockChannel HID on M2 and M3 laptops Michael Reeves via B4 Relay
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260918-apple-mtp-keyboard-final-v2-9-a5c685e50b60@gmail.com \
--to=devnull+michael.reeves077.gmail.com@kernel.org \
--cc=asahi@lists.linux.dev \
--cc=bentiss@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=dmitry.torokhov@gmail.com \
--cc=iommu@lists.linux.dev \
--cc=j@jannau.net \
--cc=jassisinghbrar@gmail.com \
--cc=jikos@kernel.org \
--cc=joro@8bytes.org \
--cc=julianbraha@gmail.com \
--cc=k@chaosmail.tech \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-input@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=marcan@marcan.st \
--cc=michael.reeves077@gmail.com \
--cc=neal@gompa.dev \
--cc=robh@kernel.org \
--cc=robin.murphy@arm.com \
--cc=sven@kernel.org \
--cc=will@kernel.org \
--cc=yureka@cyberchaos.dev \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®