linux-kernel - [PATCH 5/5] arm64: dts: apple: Add devicetreee for t8112-j415

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Message-Id: <20250813-apple-dt-sync-6-17-v1-5-209f15d10aa0@jannau.net>
Date: Wed, 13 Aug 2025 11:53:37 +0200
From: Janne Grunau via B4 Relay <devnull+j.jannau.net@...nel.org>
To: Sven Peter <sven@...nel.org>, Alyssa Rosenzweig <alyssa@...enzweig.io>, 
 Neal Gompa <neal@...pa.dev>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Mark Kettenis <kettenis@...nbsd.org>, 
 Hector Martin <marcan@...can.st>
Cc: asahi@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Janne Grunau <j@...nau.net>
Subject: [PATCH 5/5] arm64: dts: apple: Add devicetreee for t8112-j415

From: Janne Grunau <j@...nau.net>

The 15-inch M2 MacBook Air was released a year after the 13-inch one
thus missed in initial submission of devicetrees for M2 based devices.
It is currently a copy of t8112-j413 with edited identifiers but will
eventually differ in a meaningful way. It has for example a different
speaker configuration than the 13-inch model.

Signed-off-by: Janne Grunau <j@...nau.net>
---
 arch/arm64/boot/dts/apple/Makefile       |  1 +
 arch/arm64/boot/dts/apple/t8112-j415.dts | 80 ++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+)

diff --git a/arch/arm64/boot/dts/apple/Makefile b/arch/arm64/boot/dts/apple/Makefile
index 4f337bff36cdf51837ac7d50122692895026ce14..df4ba8ef6213c9f7e4ef02a50d7250008977cc71 100644
--- a/arch/arm64/boot/dts/apple/Makefile
+++ b/arch/arm64/boot/dts/apple/Makefile
@@ -80,5 +80,6 @@ dtb-$(CONFIG_ARCH_APPLE) += t6001-j316c.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t6001-j375c.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t6002-j375d.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8112-j413.dtb
+dtb-$(CONFIG_ARCH_APPLE) += t8112-j415.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8112-j473.dtb
 dtb-$(CONFIG_ARCH_APPLE) += t8112-j493.dtb
diff --git a/arch/arm64/boot/dts/apple/t8112-j415.dts b/arch/arm64/boot/dts/apple/t8112-j415.dts
new file mode 100644
index 0000000000000000000000000000000000000000..b54e218e5384ca89155e4350d6680a28a531f408
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/t8112-j415.dts
@@ -0,0 +1,80 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Apple MacBook Air (15-inch, M2, 2023)
+ *
+ * target-type: J415
+ *
+ * Copyright The Asahi Linux Contributors
+ */
+
+/dts-v1/;
+
+#include "t8112.dtsi"
+#include "t8112-jxxx.dtsi"
+#include <dt-bindings/leds/common.h>
+
+/ {
+	compatible = "apple,j415", "apple,t8112", "apple,arm-platform";
+	model = "Apple MacBook Air (15-inch, M2, 2023)";
+
+	aliases {
+		bluetooth0 = &bluetooth0;
+		wifi0 = &wifi0;
+	};
+
+	led-controller {
+		compatible = "pwm-leds";
+		led-0 {
+			pwms = <&fpwm1 0 40000>;
+			label = "kbd_backlight";
+			function = LED_FUNCTION_KBD_BACKLIGHT;
+			color = <LED_COLOR_ID_WHITE>;
+			max-brightness = <255>;
+			default-state = "keep";
+		};
+	};
+};
+
+/*
+ * Force the bus number assignments so that we can declare some of the
+ * on-board devices and properties that are populated by the bootloader
+ * (such as MAC addresses).
+ */
+&port00 {
+	bus-range = <1 1>;
+	wifi0: wifi@0,0 {
+		compatible = "pci14e4,4433";
+		reg = <0x10000 0x0 0x0 0x0 0x0>;
+		/* To be filled by the loader */
+		local-mac-address = [00 10 18 00 00 10];
+		apple,antenna-sku = "XX";
+		brcm,board-type = "apple,snake";
+	};
+
+	bluetooth0: bluetooth@0,1 {
+		compatible = "pci14e4,5f71";
+		reg = <0x10100 0x0 0x0 0x0 0x0>;
+		/* To be filled by the loader */
+		local-bd-address = [00 00 00 00 00 00];
+		brcm,board-type = "apple,snake";
+	};
+};
+
+&i2c0 {
+	/* MagSafe port */
+	hpm5: usb-pd@3a {
+		compatible = "apple,cd321x";
+		reg = <0x3a>;
+		interrupt-parent = <&pinctrl_ap>;
+		interrupts = <8 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "irq";
+	};
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&fpwm1 {
+	status = "okay";
+};

-- 
2.50.1