[PATCHv2 1/2] dt-bindings: usb: dwc2: add support for STM32MP15 SoCs USB OTG HS and FS

[Amelie Delaunay]

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@xxxxxx>
---
 Documentation/devicetree/bindings/usb/dwc2.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/dwc2.yaml b/Documentation/devicetree/bindings/usb/dwc2.yaml
index 71cf7ba32237..0b86250b97a9 100644
--- 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 external VBUS and ID sensing comparators, in
+      order to perform OTG operation, used on STM32MP15 SoCs.
+
   dr_mode:
     enum: [host, peripheral, otg]
 
-- 
2.17.1