dt-bindings: phy: spacemit: k3: add USB2 PHY support

Introduce a compatible string for the USB2 PHY in SpacemiT K3 SoC. The IP
of USB2 PHY mostly shares the same functionalities with K1 SoC, while has
some register layout changes.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Yixun Lan <dlan@kernel.org>
Link: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?h=usb-next&id=c05cf9d274daf72dc7e433480cf2e0e888f6bd89
Link: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/commit/?h=usb-next&id=00b4fe5be06aecd6426930de86b7cffc2330f4b8
Link: https://patch.msgid.link/20260305-11-k3-usb2-phy-v4-1-15554fb933bc@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

diff --git a/Documentation/devicetree/bindings/phy/spacemit,usb2-phy.yaml b/Documentation/devicetree/bindings/phy/spacemit,usb2-phy.yaml
index 43eaca90d88c024d1cab4d44c5bfe2c0cbf03fcb..18025e5f60d69110f0b504d34c2e120178525fbf 100644 (file)
--- a/Documentation/devicetree/bindings/phy/spacemit,usb2-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/spacemit,usb2-phy.yaml
@@ -4,14 +4,16 @@
 $id: http://devicetree.org/schemas/phy/spacemit,usb2-phy.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: SpacemiT K1 SoC USB 2.0 PHY
+title: SpacemiT K1/K3 SoC USB 2.0 PHY
 
 maintainers:
   - Ze Huang <huang.ze@linux.dev>
 
 properties:
   compatible:
-    const: spacemit,k1-usb2-phy
+    enum:
+      - spacemit,k1-usb2-phy
+      - spacemit,k3-usb2-phy
 
   reg:
     maxItems: 1