dt-bindings: mfd: brcm,cru: Add USB 2.0 PHY

Northstar's USB 2.0 PHY is part of the CRU MFD.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Documentation/devicetree/bindings/mfd/brcm,cru.yaml

@@ -39,6 +39,9 @@ patternProperties:
   '^clock-controller@[a-f0-9]+$':
     $ref: ../clock/brcm,iproc-clocks.yaml
 
+  '^phy@[a-f0-9]+$':
+    $ref: ../phy/bcm-ns-usb2-phy.yaml
+
   '^syscon@[a-f0-9]+$':
     $ref: syscon.yaml
 
@@ -52,6 +55,7 @@ required:
 
 examples:
   - |
+    #include <dt-bindings/clock/bcm-nsp.h>
     cru-bus@1800c100 {
         compatible = "brcm,ns-cru", "simple-mfd";
         reg = <0x1800c100 0x1d0>;
@@ -76,7 +80,16 @@ examples:
                                  "iprocfast", "sata1", "sata2";
         };
 
-        syscon@180 {
+        phy@164 {
+            compatible = "brcm,ns-usb2-phy";
+            reg = <0x164 0x4>;
+            brcm,syscon-clkset = <&clkset>;
+            clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>;
+            clock-names = "phy-ref-clk";
+            #phy-cells = <0>;
+        };
+
+        clkset: syscon@180 {
             compatible = "brcm,cru-clkset", "syscon";
             reg = <0x180 0x4>;
         };