From: Hang Cao <caohang@eswincomputing.com>

Add Device Tree binding documentation for the ESWIN EIC7700
usb controller module.

Signed-off-by: Senchuan Zhang <zhangsenchuan@eswincomputing.com>
Signed-off-by: Hang Cao <caohang@eswincomputing.com>
---
 .../bindings/usb/eswin,eic7700-usb.yaml       | 94 +++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml

diff --git a/Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml b/Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml
new file mode 100644
index 000000000000..41c3b1b98991
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/eswin,eic7700-usb.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ESWIN EIC7700 SoC Usb Controller
+
+maintainers:
+  - Wei Yang <yangwei1@eswincomputing.com>
+  - Senchuan Zhang <zhangsenchuan@eswincomputing.com>
+  - Hang Cao <caohang@eswincomputing.com>
+
+description:
+  The Usb controller on EIC7700 SoC.
+
+allOf:
+  - $ref: snps,dwc3-common.yaml#
+
+properties:
+  compatible:
+    const: eswin,eic7700-dwc3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-names:
+    items:
+      - const: peripheral
+
+  clocks:
+    maxItems: 3
+
+  clock-names:
+    items:
+      - const: aclk
+      - const: cfg
+      - const: usb_en
+
+  resets:
+    maxItems: 2
+
+  reset-names:
+    items:
+      - const: vaux
+      - const: usb_rst
+
+  eswin,hsp-sp-csr:
+    description:
+      HSP CSR is to control and get status of different high-speed peripherals
+      (such as Ethernet, USB, SATA, etc.) via register, which can tune
+      board-level's parameters of PHY, etc.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to HSP Register Controller hsp_sp_csr node.
+          - description: USB bus register offset.
+          - description: AXI low power register offset.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+  - interrupt-names
+  - resets
+  - reset-names
+  - eswin,hsp-sp-csr
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    usb@50480000 {
+        compatible = "eswin,eic7700-dwc3";
+        reg = <0x50480000 0x10000>;
+        clocks = <&clock 135>,
+                 <&clock 136>,
+                 <&hspcrg 18>;
+        clock-names = "aclk", "cfg", "usb_en";
+        interrupt-parent = <&plic>;
+        interrupts = <85>;
+        interrupt-names = "peripheral";
+        resets = <&reset 84>, <&hspcrg 2>;
+        reset-names = "vaux", "usb_rst";
+        dr_mode = "peripheral";
+        maximum-speed = "high-speed";
+        phy_type = "utmi";
+        eswin,hsp-sp-csr = <&hsp_sp_csr 0x800 0x818>;
+    };
-- 
2.34.1

On Thu, 06 Nov 2025 18:50:29 +0800, caohang@eswincomputing.com wrote:
> From: Hang Cao <caohang@eswincomputing.com>
> 
> Add Device Tree binding documentation for the ESWIN EIC7700
> usb controller module.
> 
> Signed-off-by: Senchuan Zhang <zhangsenchuan@eswincomputing.com>
> Signed-off-by: Hang Cao <caohang@eswincomputing.com>
> ---
>  .../bindings/usb/eswin,eic7700-usb.yaml       | 94 +++++++++++++++++++
>  1 file changed, 94 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/eswin,eic7700-usb.yaml
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/net/eswin,eic7700-eth.example.dtb: ethernet@50400000 (eswin,eic7700-qos-eth): eswin,hsp-sp-csr: [[4294967295, 256], [264, 280]] is too short
	from schema $id: http://devicetree.org/schemas/net/eswin,eic7700-eth.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20251106105029.1400-1-caohang@eswincomputing.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.