Re: [PATCH v5 1/2] dt-bindings: usb: dwc3: Add Google Tensor G5 DWC3

On Wed, Nov 12, 2025 at 4:32 PM Krzysztof Kozlowski [off-list ref] wrote:

On Tue, Nov 11, 2025 at 01:06:23PM +0000, Roy Luo wrote:

quoted

Document the device tree bindings for the DWC3 USB controller found in
Google Tensor SoCs, starting with the G5 generation.

The Tensor G5 silicon represents a complete architectural departure from
previous generations (like gs101), including entirely new clock/reset
schemes, top-level wrapper and register interface. Consequently,
existing Samsung/Exynos DWC3 USB bindings are incompatible, necessitating
this new device tree binding.

The USB controller on Tensor G5 is based on Synopsys DWC3 IP and features
Dual-Role Device single port with hibernation support.

Signed-off-by: Roy Luo <redacted>
---
 .../bindings/usb/google,gs5-dwc3.yaml         | 140 ++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/google,gs5-dwc3.yaml

diff --git a/Documentation/devicetree/bindings/usb/google,gs5-dwc3.yaml b/Documentation/devicetree/bindings/usb/google,gs5-dwc3.yaml
new file mode 100644
index 000000000000..bfaf6cbdfec3
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/google,gs5-dwc3.yaml

@@ -0,0 +1,140 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) 2025, Google LLC
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/google,gs5-dwc3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Google Tensor Series (G5+) DWC3 USB SoC Controller
+
+maintainers:
+  - Roy Luo <royluo@google.com>
+
+description:
+  Describes the DWC3 USB controller block implemented on Google Tensor SoCs,
+  starting with the G5 generation. Based on Synopsys DWC3 IP, the controller
+  features Dual-Role Device single port with hibernation add-on.
+
+properties:
+  compatible:
+    const: google,gs5-dwc3

Doug just said SoC is lga, not gs5, so you need both to align on that.
Actually not only you both, but whoever else is upstreaming from Google.

It is not the community who should synchronize and organize way how
Google works on their own stuff. Google should organize how Google works
on your Google's stuff.

Best regards,
Krzysztof

Ack, will align on the next patchset.

Thanks,
Roy Luo