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Message-ID: <20250805114730.2491238-2-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date: Tue, 5 Aug 2025 12:47:29 +0100
From: Prabhakar <prabhakar.csengg@...il.com>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Geert Uytterhoeven <geert+renesas@...der.be>,
Magnus Damm <magnus.damm@...il.com>,
Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
Cc: linux-usb@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-renesas-soc@...r.kernel.org,
Prabhakar <prabhakar.csengg@...il.com>,
Biju Das <biju.das.jz@...renesas.com>,
Fabrizio Castro <fabrizio.castro.jz@...esas.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH 1/2] dt-bindings: usb: renesas,usbhs: Add RZ/T2H and RZ/N2H support
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...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@...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
--
2.50.1
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