[PATCH v4 1/8] dt-bindings: usb: ci-hdrc-usb2: add spacemit,k1-usb2 compatible

[Junzhong Pan]

The USB2.0 controller on the SpacemiT K1 SoC is dual-role capable but
has no internal OTG registers, this requires flags which disable
related features set in platform data. Add a compatible string to match
the platform data.

Chipidea USB2 Controller on SpacemiT K1 requires 1 clock and 1 reset to
work, add constraints for it.

Reviewed-by: Yixun Lan <dlan@xxxxxxxxxx>
Acked-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Signed-off-by: Junzhong Pan <panjunzhong@xxxxxxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
index 620b564914d4..5c2b7eb1a6ff 100644
--- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
+++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.yaml
@@ -25,6 +25,7 @@ properties:
           - nvidia,tegra124-udc
           - nxp,s32g2-usb
           - qcom,ci-hdrc
+          - spacemit,k1-usb2
       - items:
           - enum:
               - nvidia,tegra114-ehci
@@ -113,6 +114,20 @@ allOf:
           maxItems: 2
         clock-names:
           maxItems: 2
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: spacemit,k1-usb2
+    then:
+      properties:
+        clocks:
+          maxItems: 1
+        resets:
+          minItems: 1
+      required:
+        - clocks
+        - resets
 
 unevaluatedProperties: false
 

-- 
2.34.1