dt-bindings: usb: dwc2: add support for STM32MP15 SoCs USB OTG HS and FS

Add the specific compatible string for the DWC2 IP found in the STM32MP15
SoCs.
STM32MP15 SoCs uses sensing comparators to detect Vbus valid levels and
ID pin state. usb33d-supply described the regulator supplying Vbus and ID
sensing comparators.

Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Rob Herring <robh@kernel.org>

diff --git a/Documentation/devicetree/bindings/usb/dwc2.yaml b/Documentation/devicetree/bindings/usb/dwc2.yaml
index 71cf7ba32237613b8caf72cc83a51e8c34af0890..e95ba9373023acbc4edc6b8a9a985dc108b36eb6 100644 (file)
--- a/Documentation/devicetree/bindings/usb/dwc2.yaml
+++ b/Documentation/devicetree/bindings/usb/dwc2.yaml
@@ -58,6 +58,8 @@ properties:
       - const: st,stm32f4x9-fsotg
       - const: st,stm32f4x9-hsotg
       - const: st,stm32f7-hsotg
+      - const: st,stm32mp15-fsotg
+      - const: st,stm32mp15-hsotg
       - const: samsung,s3c6400-hsotg
 
   reg:
@@ -103,6 +105,10 @@ properties:
   vusb_a-supply:
     description: phandle to voltage regulator of analog section.
 
+  vusb33d-supply:
+    description: reference to the VBUS and ID sensing comparators supply, in
+      order to perform OTG operation, used on STM32MP15 SoCs.
+
   dr_mode:
     enum: [host, peripheral, otg]