dt-bindings: phy: qcom,msm8998-qmp-usb3-phy: add TCSR registers

The QMP USB PHYs on msm8998, qcm2290 and some other platforms don't have
the PCS_MISC_CLAMP_ENABLE register. Instead they need to toggle the
register in the TCSR space. Declare the registers accessible through the
TCSR space.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240117-usbc-phy-vls-clamp-v2-2-a950c223f10f@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

Documentation/devicetree/bindings/phy/qcom,msm8998-qmp-usb3-phy.yaml

@@ -55,6 +55,14 @@ properties:
       Flag the PHY as possible handler of USB Type-C orientation switching
     type: boolean
 
+  qcom,tcsr-reg:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to TCSR hardware block
+          - description: offset of the VLS CLAMP register
+    description: Clamp register present in the TCSR
+
   ports:
     $ref: /schemas/graph.yaml#/properties/ports
     properties:
@@ -78,6 +86,7 @@ required:
   - "#clock-cells"
   - clock-output-names
   - "#phy-cells"
+  - qcom,tcsr-reg
 
 allOf:
   - if:
@@ -148,6 +157,8 @@ examples:
 
       orientation-switch;
 
+      qcom,tcsr-reg = <&tcsr_regs_1 0x6b244>;
+
       ports {
         #address-cells = <1>;
         #size-cells = <0>;