[PATCH v4 1/5] dt-bindings: phy: qcom,qmp-usb3-dp: Extend X1E description for USB4

[Konrad Dybcio <konradybcio@kernel.org>]

From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>

Some instances of the QMP combo PHY (called USB43DP) feature a third
functional sub-block, responsible for USB4/Thunderbolt 3 communication.

Compared to the today's state of the binding, one more clock (P2RR2P -
PHY-to-Router, Router-to-PHY) needs to be enabled for the PHY to be
able to switch to USB4 mode. Allow that for X1E.

Also, add a bindings define to let consumers access it.

Assisted-by: Claude:sonnet-5
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
---
 .../phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml         | 55 +++++++++++++++++-----
 include/dt-bindings/phy/phy-qcom-qmp.h             |  1 +
 2 files changed, 45 insertions(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
index 8adfc78108fe..94a4fbff428f 100644
--- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-usb43dp-phy.yaml
@@ -53,12 +53,7 @@ properties:
 
   clock-names:
     minItems: 4
-    items:
-      - const: aux
-      - const: ref
-      - const: com_aux
-      - const: usb3_pipe
-      - const: cfg_ahb
+    maxItems: 5
 
   power-domains:
     maxItems: 1
@@ -189,21 +184,59 @@ allOf:
   - if:
       properties:
         compatible:
-          enum:
-            - qcom,sc7180-qmp-usb3-dp-phy
-            - qcom,sdm845-qmp-usb3-dp-phy
+          contains:
+            enum:
+              - qcom,x1e80100-qmp-usb3-dp-phy
     then:
       properties:
         clocks:
           maxItems: 5
         clock-names:
+          items:
+            - const: aux
+            - const: ref
+            - const: com_aux
+            - const: usb3_pipe
+            - const: p2rr2p_pipe
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - qcom,sc7180-qmp-usb3-dp-phy
+              - qcom,sdm845-qmp-usb3-dp-phy
+    then:
+      properties:
+        clocks:
           maxItems: 5
-    else:
+        clock-names:
+          items:
+            - const: aux
+            - const: ref
+            - const: com_aux
+            - const: usb3_pipe
+            - const: cfg_ahb
+
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - qcom,x1e80100-qmp-usb3-dp-phy
+                - qcom,sc7180-qmp-usb3-dp-phy
+                - qcom,sdm845-qmp-usb3-dp-phy
+    then:
       properties:
         clocks:
           maxItems: 4
         clock-names:
-          maxItems: 4
+          items:
+            - const: aux
+            - const: ref
+            - const: com_aux
+            - const: usb3_pipe
 
   - if:
       properties:
diff --git a/include/dt-bindings/phy/phy-qcom-qmp.h b/include/dt-bindings/phy/phy-qcom-qmp.h
index 6b43ea9e0051..1c3ce0c02b0c 100644
--- a/include/dt-bindings/phy/phy-qcom-qmp.h
+++ b/include/dt-bindings/phy/phy-qcom-qmp.h
@@ -16,6 +16,7 @@
 /* QMP USB4-USB3-DP PHYs */
 #define QMP_USB43DP_USB3_PHY		0
 #define QMP_USB43DP_DP_PHY		1
+#define QMP_USB43DP_USB4_PHY		2
 
 /* QMP PCIE PHYs */
 #define QMP_PCIE_PIPE_CLK		0

-- 
2.55.0


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