[PATCH v2 01/22] dt-bindings: usb: Add Apple dwc3
From: Sven Peter <sven@kernel.org>
Date: 2025-09-06 15:43:39
Also in:
asahi, b4-sent, linux-devicetree, linux-phy, linux-usb, lkml
Subsystem:
arm/apple machine support, open firmware and flattened device tree bindings, the rest, usb subsystem · Maintainers:
Sven Peter, Janne Grunau, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman
Apple Silicon uses Synopsys DesignWare dwc3 based USB controllers for their Type-C ports. Signed-off-by: Sven Peter <sven@kernel.org> --- .../devicetree/bindings/usb/apple,dwc3.yaml | 80 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 81 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/apple,dwc3.yaml b/Documentation/devicetree/bindings/usb/apple,dwc3.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7c8708143696faf2133c141d2a78abd3b5813979
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/apple,dwc3.yaml@@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/apple,dwc3.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Apple Silicon DWC3 USB controller + +maintainers: + - Sven Peter <sven@kernel.org> + +description: + Apple Silicon SoCs use a Synopsys DesignWare DWC3 based controller for each of + their Type-C ports. + +allOf: + - $ref: snps,dwc3-common.yaml# + +properties: + compatible: + oneOf: + - items: + - enum: + - apple,t6000-dwc3 + - apple,t6020-dwc3 + - apple,t8112-dwc3 + - const: apple,t8103-dwc3 + - const: apple,t8103-dwc3 + + reg: + items: + - description: Core DWC3 region + - description: Apple-specific DWC3 region + + reg-names: + items: + - const: dwc3-core + - const: dwc3-apple + + interrupts: + maxItems: 1 + + iommus: + maxItems: 2 + + resets: + maxItems: 1 + + power-domains: + maxItems: 1 + +required: + - compatible + - reg + - reg-names + - interrupts + - iommus + - resets + - power-domains + - usb-role-switch + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/apple-aic.h> + #include <dt-bindings/interrupt-controller/irq.h> + + usb@82280000 { + compatible = "apple,t8103-dwc3"; + reg = <0x82280000 0xce00>, <0x8228cd00 0x3200>; + reg-names = "dwc3-core", "dwc3-apple"; + interrupts = <AIC_IRQ 777 IRQ_TYPE_LEVEL_HIGH>; + iommus = <&dwc3_0_dart_0 0>, <&dwc3_0_dart_1 1>; + + power-domains = <&ps_atc0_usb>; + resets = <&atcphy0>; + + usb-role-switch; + };
diff --git a/MAINTAINERS b/MAINTAINERS
index fe168477caa45799dfe07de2f54de6d6a1ce0615..0e085cb0762f765958d67be61ae0d3d773503431 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS@@ -2399,6 +2399,7 @@ F: Documentation/devicetree/bindings/power/reset/apple,smc-reboot.yaml F: Documentation/devicetree/bindings/pwm/apple,s5l-fpwm.yaml F: Documentation/devicetree/bindings/spi/apple,spi.yaml F: Documentation/devicetree/bindings/spmi/apple,spmi.yaml +F: Documentation/devicetree/bindings/usb/apple,dwc3.yaml F: Documentation/devicetree/bindings/watchdog/apple,wdt.yaml F: arch/arm64/boot/dts/apple/ F: drivers/bluetooth/hci_bcm4377.c
--
2.34.1