[PATCH 1/2] dt-bindings: usb: renesas,usbhs: Add RZ/T2H and RZ/N2H support
From: Prabhakar <prabhakar.csengg@gmail.com>
Date: 2025-08-05 11:47:43
Also in:
linux-renesas-soc, linux-usb, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest, usb subsystem · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Greg Kroah-Hartman
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Document the USBHS controller for the Renesas RZ/T2H (r9a09g077) and RZ/N2H (r9a09g087) SoCs. While the USBHS block is similar to the one found on the RZ/G2L SoC, it differs slightly in terms of interrupt configuration, clock/reset requirements, and register bit definitions. Due to these differences, a new compatible string `renesas,usbhs-r9a09g077` is introduced for the RZ/T2H SoC. The USBHS controller on the RZ/N2H (r9a09g087) SoC is identical to that on the RZ/T2H, so it uses the `renesas,usbhs-r9a09g077` compatible string as a fallback. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> --- .../bindings/usb/renesas,usbhs.yaml | 28 +++++++++++++++++-- 1 file changed, 25 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
index a19816bbb1fd..0b8b90dd1951 100644
--- a/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml
+++ b/Documentation/devicetree/bindings/usb/renesas,usbhs.yaml@@ -59,6 +59,12 @@ properties: - renesas,usbhs-r8a77995 # R-Car D3 - const: renesas,rcar-gen3-usbhs + - const: renesas,usbhs-r9a09g077 # RZ/T2H + + - items: + - const: renesas,usbhs-r9a09g087 # RZ/N2H + - const: renesas,usbhs-r9a09g077 # RZ/T2H + reg: maxItems: 1
@@ -141,9 +147,25 @@ allOf: required: - resets else: - properties: - interrupts: - maxItems: 1 + if: + properties: + compatible: + contains: + const: renesas,usbhs-r9a09g077 + then: + properties: + resets: false + clocks: + maxItems: 1 + interrupts: + items: + - description: USB function interrupt USB_FI + - description: USB function DMA0 transmit completion interrupt USB_FDMA0 + - description: USB function DMA1 transmit completion interrupt USB_FDMA1 + else: + properties: + interrupts: + maxItems: 1 additionalProperties: false
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2.50.1