[PATCH v2 10/10] arm64: dts: apple: Enable DockChannel HID on M2 and M3 laptops
COLD17d
From: Michael Reeves via B4 Relay <devnull+michael.reeves077.gmail.com@kernel.org>
Date: 2026-09-18 11:06:52
Also in:
asahi, b4-sent, linux-arm-kernel, linux-devicetree, linux-iommu, lkml
Subsystem:
arm/apple machine support, the rest · Maintainers:
Sven Peter, Janne Grunau, Linus Torvalds
From: Michael Reeves <redacted> Enable the MTP mailbox, DART, DockChannel mailbox, and HID transport on the M2 and M3 laptop device trees using this internal input path. Add a keyboard alias and keyboard child node for each machine so the transport can expose the internal keyboard. Co-developed-by: Hector Martin <redacted> Signed-off-by: Hector Martin <redacted> Signed-off-by: Michael Reeves <redacted> --- arch/arm64/boot/dts/apple/t602x-j414-j416.dtsi | 29 ++++++++++++++++++++++++++ arch/arm64/boot/dts/apple/t603x-j514-j516.dtsi | 24 +++++++++++++++++++++ arch/arm64/boot/dts/apple/t8112-j413.dts | 24 +++++++++++++++++++++ arch/arm64/boot/dts/apple/t8112-j415.dts | 24 +++++++++++++++++++++ arch/arm64/boot/dts/apple/t8112-j493.dts | 26 ++++++++++++++++++++++- arch/arm64/boot/dts/apple/t8122-j504.dts | 26 +++++++++++++++++++++++ arch/arm64/boot/dts/apple/t8122-j613.dts | 27 ++++++++++++++++++++++++ arch/arm64/boot/dts/apple/t8122-j615.dts | 27 ++++++++++++++++++++++++ 8 files changed, 206 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/apple/t602x-j414-j416.dtsi b/arch/arm64/boot/dts/apple/t602x-j414-j416.dtsi
index 0e806d8dd..91fda44d9 100644
--- a/arch/arm64/boot/dts/apple/t602x-j414-j416.dtsi
+++ b/arch/arm64/boot/dts/apple/t602x-j414-j416.dtsi@@ -16,6 +16,12 @@ #include "t600x-j314-j316.dtsi" +/ { + aliases { + keyboard = &keyboard; + }; +}; + &framebuffer0 { power-domains = <&ps_disp0_cpu0>, <&ps_dptx_phy_ps>; };
@@ -43,3 +49,26 @@ &wifi0 { &bluetooth0 { compatible = "pci14e4,5f72"; }; + +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
diff --git a/arch/arm64/boot/dts/apple/t603x-j514-j516.dtsi b/arch/arm64/boot/dts/apple/t603x-j514-j516.dtsi
index 517b84c18..f6fe382de 100644
--- a/arch/arm64/boot/dts/apple/t603x-j514-j516.dtsi
+++ b/arch/arm64/boot/dts/apple/t603x-j514-j516.dtsi@@ -21,6 +21,7 @@ / { chassis-type = "laptop"; aliases { + keyboard = &keyboard; serial0 = &serial0; };
@@ -64,3 +65,26 @@ &serial0 { &fpwm0 { status = "okay"; }; + +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
diff --git a/arch/arm64/boot/dts/apple/t8112-j413.dts b/arch/arm64/boot/dts/apple/t8112-j413.dts
index 7ccfceb08..5b9bdad3d 100644
--- a/arch/arm64/boot/dts/apple/t8112-j413.dts
+++ b/arch/arm64/boot/dts/apple/t8112-j413.dts@@ -20,6 +20,7 @@ / { aliases { bluetooth0 = &bluetooth0; + keyboard = &keyboard; wifi0 = &wifi0; };
@@ -93,3 +94,26 @@ &fpwm1 { }; #include "hwmon-laptop.dtsi" + +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
diff --git a/arch/arm64/boot/dts/apple/t8112-j415.dts b/arch/arm64/boot/dts/apple/t8112-j415.dts
index fdc3409d2..3da132eeb 100644
--- a/arch/arm64/boot/dts/apple/t8112-j415.dts
+++ b/arch/arm64/boot/dts/apple/t8112-j415.dts@@ -20,6 +20,7 @@ / { aliases { bluetooth0 = &bluetooth0; + keyboard = &keyboard; wifi0 = &wifi0; };
@@ -93,3 +94,26 @@ &fpwm1 { }; #include "hwmon-laptop.dtsi" + +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
diff --git a/arch/arm64/boot/dts/apple/t8112-j493.dts b/arch/arm64/boot/dts/apple/t8112-j493.dts
index 7cea5c594..ecc057929 100644
--- a/arch/arm64/boot/dts/apple/t8112-j493.dts
+++ b/arch/arm64/boot/dts/apple/t8112-j493.dts@@ -1,6 +1,6 @@ // SPDX-License-Identifier: GPL-2.0+ OR MIT /* - * Apple MacBook Pro (13-inch, M1, 2022) + * Apple MacBook Pro (13-inch, M2, 2022) * * target-type: J493 *
@@ -24,6 +24,7 @@ / { */ aliases { bluetooth0 = &bluetooth0; + keyboard = &keyboard; touchbar0 = &touchbar0; wifi0 = &wifi0; };
@@ -149,3 +150,26 @@ touchbar0: touchbar@0 { #include "hwmon-laptop.dtsi" #include "hwmon-fan.dtsi" + +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
diff --git a/arch/arm64/boot/dts/apple/t8122-j504.dts b/arch/arm64/boot/dts/apple/t8122-j504.dts
index 464491b55..a08a130be 100644
--- a/arch/arm64/boot/dts/apple/t8122-j504.dts
+++ b/arch/arm64/boot/dts/apple/t8122-j504.dts@@ -18,6 +18,10 @@ / { compatible = "apple,j504", "apple,t8122", "apple,arm-platform"; model = "Apple MacBook Pro (14-inch, M3, 2023)"; + aliases { + keyboard = &keyboard; + }; + led-controller { compatible = "pwm-leds"; led-0 {
@@ -35,3 +39,25 @@ &fpwm1 { status = "okay"; }; +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
diff --git a/arch/arm64/boot/dts/apple/t8122-j613.dts b/arch/arm64/boot/dts/apple/t8122-j613.dts
index 51894ea70..a81326cd5 100644
--- a/arch/arm64/boot/dts/apple/t8122-j613.dts
+++ b/arch/arm64/boot/dts/apple/t8122-j613.dts@@ -17,6 +17,10 @@ / { compatible = "apple,j613", "apple,t8122", "apple,arm-platform"; model = "Apple MacBook Air (13-inch, M3, 2024)"; + aliases { + keyboard = &keyboard; + }; + led-controller { compatible = "pwm-leds"; led-0 {
@@ -33,3 +37,26 @@ led-0 { &fpwm1 { status = "okay"; }; + +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
diff --git a/arch/arm64/boot/dts/apple/t8122-j615.dts b/arch/arm64/boot/dts/apple/t8122-j615.dts
index 2a1970c1b..21bcacb6f 100644
--- a/arch/arm64/boot/dts/apple/t8122-j615.dts
+++ b/arch/arm64/boot/dts/apple/t8122-j615.dts@@ -17,6 +17,10 @@ / { compatible = "apple,j615", "apple,t8122", "apple,arm-platform"; model = "Apple MacBook Air (15-inch, M3, 2024)"; + aliases { + keyboard = &keyboard; + }; + led-controller { compatible = "pwm-leds"; led-0 {
@@ -33,3 +37,26 @@ led-0 { &fpwm1 { status = "okay"; }; + +&mtp_mbox { + status = "okay"; +}; + +&mtp_dart { + status = "okay"; +}; + +&mtp_dockchannel { + status = "okay"; +}; + +&mtp_hid { + status = "okay"; + + keyboard: keyboard { + hid-country-code = <0>; + }; + + stm { + }; +};
--
2.55.0