[PATCH v4 1/7] dt-bindings: clock: qcom,sm8550-tcsr: Add QREF/REFGEN supply properties for glymur and mahua

[Qiang Yu]

The QREF block supplies reference clocks to PCIe PHYs and requires
dedicated LDO supplies to operate. The digital control interface for
QREF (clkref_en registers) resides in TCSR on glymur and mahua. Since
QREF has no dedicated DT node of its own, these supply properties are
placed in the TCSR node which acts as the control interface for QREF.

Document the supply properties for qcom,glymur-tcsr and qcom,mahua-tcsr.
Both SoCs share the same QREF TX/RPT/RX component naming, but differ in
topology:

Glymur has two independent QREF blocks fed by REFGEN3 and REFGEN4. Mahua
has a single QREF block fed by REFGEN3 only.

Mark the relevant supplies as required per compatible using allOf/if/then
conditionals.

Signed-off-by: Qiang Yu <qiang.yu@xxxxxxxxxxxxxxxx>
---
 .../bindings/clock/qcom,sm8550-tcsr.yaml           | 66 ++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml b/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml
index 08824f848973..fd3736ad8c8f 100644
--- a/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml
+++ b/Documentation/devicetree/bindings/clock/qcom,sm8550-tcsr.yaml
@@ -31,6 +31,7 @@ properties:
           - qcom,glymur-tcsr
           - qcom,hawi-tcsrcc
           - qcom,kaanapali-tcsr
+          - qcom,mahua-tcsr
           - qcom,milos-tcsr
           - qcom,nord-tcsrcc
           - qcom,sar2130p-tcsr
@@ -53,6 +54,71 @@ properties:
   '#reset-cells':
     const: 1
 
+  vdda-qrefrpt0-0p9-supply: true
+  vdda-qrefrpt1-0p9-supply: true
+  vdda-qrefrpt2-0p9-supply: true
+  vdda-qrefrpt3-0p9-supply: true
+  vdda-qrefrpt4-0p9-supply: true
+  vdda-qrefrpt5-0p9-supply: true
+  vdda-qrefrx0-0p9-supply: true
+  vdda-qrefrx1-0p9-supply: true
+  vdda-qrefrx2-0p9-supply: true
+  vdda-qrefrx3-0p9-supply: true
+  vdda-qrefrx4-0p9-supply: true
+  vdda-qrefrx5-0p9-supply: true
+  vdda-qreftx0-0p9-supply: true
+  vdda-qreftx0-1p2-supply: true
+  vdda-qreftx1-0p9-supply: true
+  vdda-refgen3-0p9-supply: true
+  vdda-refgen3-1p2-supply: true
+  vdda-refgen4-0p9-supply: true
+  vdda-refgen4-1p2-supply: true
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,glymur-tcsr
+    then:
+      required:
+        - vdda-qrefrpt0-0p9-supply
+        - vdda-qrefrpt1-0p9-supply
+        - vdda-qrefrpt2-0p9-supply
+        - vdda-qrefrpt3-0p9-supply
+        - vdda-qrefrpt4-0p9-supply
+        - vdda-qrefrx0-0p9-supply
+        - vdda-qrefrx1-0p9-supply
+        - vdda-qrefrx2-0p9-supply
+        - vdda-qrefrx4-0p9-supply
+        - vdda-qrefrx5-0p9-supply
+        - vdda-qreftx0-0p9-supply
+        - vdda-qreftx0-1p2-supply
+        - vdda-qreftx1-0p9-supply
+        - vdda-refgen3-0p9-supply
+        - vdda-refgen3-1p2-supply
+        - vdda-refgen4-0p9-supply
+        - vdda-refgen4-1p2-supply
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,mahua-tcsr
+    then:
+      required:
+        - vdda-qrefrpt0-0p9-supply
+        - vdda-qrefrpt1-0p9-supply
+        - vdda-qrefrpt2-0p9-supply
+        - vdda-qrefrpt3-0p9-supply
+        - vdda-qrefrpt4-0p9-supply
+        - vdda-qrefrpt5-0p9-supply
+        - vdda-qrefrx1-0p9-supply
+        - vdda-qrefrx2-0p9-supply
+        - vdda-qrefrx3-0p9-supply
+        - vdda-qreftx1-0p9-supply
+        - vdda-refgen3-0p9-supply
+        - vdda-refgen3-1p2-supply
+
 required:
   - compatible
   - clocks

-- 
2.34.1