[PATCH 12/16] dt-bindings: phy: stm32: adapt usb2phy as syscon child on stm32mp25

[Fabrice Gasnier]

Adapt stm32-usb2phy since transition to syscon child node on stm32mp25.
This is a temporary update, as it depends on Marek's series [1]. This
should be dropped in later series revision.
It's a precursor to validate further DT addition on USB and Type-C.

Allow usb2phy to be a child node with reg and unit address.
It replaces the st,syscfg phandle.
Also adapt the example, e.g. stm32mp25-usb2phy1 address, clock and reset.

[1] https://lore.kernel.org/linux-phy/20260816213849.1044073-2-marex@xxxxxxxxxxxx/

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxxxxxxx>
---
 .../devicetree/bindings/phy/st,stm32-usb2phy.yaml    | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/st,stm32-usb2phy.yaml b/Documentation/devicetree/bindings/phy/st,stm32-usb2phy.yaml
index ab6c943af9a2..3e8f57a46db3 100644
--- a/Documentation/devicetree/bindings/phy/st,stm32-usb2phy.yaml
+++ b/Documentation/devicetree/bindings/phy/st,stm32-usb2phy.yaml
@@ -23,6 +23,8 @@ properties:
       - st,stm32mp25-usb2phy1
       - st,stm32mp25-usb2phy2
 
+  reg: true
+
   "#phy-cells":
     const: 0
 
@@ -35,24 +37,16 @@ properties:
   vdd33-supply:
     description: Phandle to regulator providing 3V3 power supply to the USB2 HS PHY
 
-  st,syscfg:
-    $ref: /schemas/types.yaml#/definitions/phandle-array
-    description: Phandle to system configuration controller.
-    items:
-      - items:
-          - description: phandle to syscfg
-          - description: USB2PHY control offset within syscfg
-
   "#clock-cells":
     const: 1
 
 required:
   - compatible
+  - reg
   - "#clock-cells"
   - "#phy-cells"
   - clocks
   - resets
-  - st,syscfg
   - vdd33-supply
 
 additionalProperties: false
@@ -62,12 +56,12 @@ examples:
     #include <dt-bindings/clock/st,stm32mp25-rcc.h>
     #include <dt-bindings/reset/st,stm32mp25-rcc.h>
 
-    usb2_phy2: usb-phy {
+    usb2_phy2: phy@2400 {
         compatible = "st,stm32mp25-usb2phy1";
+        reg = <0x2400 0x24>;
         #clock-cells = <1>;
         #phy-cells = <0>;
-        clocks = <&rcc CK_KER_USB2PHY2>;
-        resets = <&rcc USB2PHY2_R>;
-        st,syscfg = <&syscfg 0x2800>;
+        clocks = <&rcc CK_KER_USB2PHY1>;
+        resets = <&rcc USB2PHY1_R>;
         vdd33-supply = <&vdd33usb>;
     };

-- 
2.43.0