[PATCH v2 21/24] dt-bindings: usb: Add ZTE ZX279128S DWC3 controller

[Navid Ghahremani <ghahramani.navid@gmail.com>]

Describe the USB host integration with three CRM clocks and four reset
bits.

Signed-off-by: Navid Ghahremani <ghahramani.navid@gmail.com>
---
 .../bindings/usb/zte,zx279128s-dwc3.yaml      | 76 +++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/zte,zx279128s-dwc3.yaml

diff --git a/Documentation/devicetree/bindings/usb/zte,zx279128s-dwc3.yaml b/Documentation/devicetree/bindings/usb/zte,zx279128s-dwc3.yaml
new file mode 100644
index 0000000000..2fd9fe0cc7
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/zte,zx279128s-dwc3.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/zte,zx279128s-dwc3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ZTE zx279128s DWC3 USB controller
+
+maintainers:
+  - Navid Ghahremani <ghahramani.navid@gmail.com>
+
+description:
+  The ZTE zx279128s has a DesignWare USB3 controller (DWC_usb3 2.80a) with
+  integrated USB 2.0 and USB 3.0 PHYs, used as a host. Its clocks and resets
+  come from the top clock and reset module.
+
+allOf:
+  - $ref: snps,dwc3-common.yaml#
+
+properties:
+  compatible:
+    const: zte,zx279128s-dwc3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: 20 MHz reference clock
+      - description: bus (AXI) clock
+      - description: 32.768 kHz suspend clock
+
+  clock-names:
+    items:
+      - const: ref
+      - const: bus_early
+      - const: suspend
+
+  resets:
+    description: The four reset bits of the controller and its PHYs, in the
+      order they are released.
+    minItems: 4
+    maxItems: 4
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - resets
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/zte,zx279128s-crm.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    usb@9100000 {
+        compatible = "zte,zx279128s-dwc3";
+        reg = <0x09100000 0x100000>;
+        interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&topcrm ZX279128S_TOP_USB_REF>,
+                 <&topcrm ZX279128S_TOP_USB_ACLK>,
+                 <&topcrm ZX279128S_TOP_USB_SUSPEND>;
+        clock-names = "ref", "bus_early", "suspend";
+        resets = <&topcrm ZX279128S_TOP_RST_USB_B11>,
+                 <&topcrm ZX279128S_TOP_RST_USB_B14>,
+                 <&topcrm ZX279128S_TOP_RST_USB_B9>,
+                 <&topcrm ZX279128S_TOP_RST_USB_B10>;
+        dr_mode = "host";
+    };
-- 
2.55.0