Add a property to allow configuring the musb controller on PolarFire SoC
to use an external vbus for ULPI PHYs.
Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
---
.../devicetree/bindings/usb/microchip,mpfs-musb.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml b/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
index c5e9ce2e7bc2a..27b909de49922 100644
--- a/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
+++ b/Documentation/devicetree/bindings/usb/microchip,mpfs-musb.yaml
@@ -34,6 +34,13 @@ properties:
clocks:
maxItems: 1
+ microchip,ext-vbus-drv:
+ description:
+ Some ULPI USB PHYs do not support an internal VBUS supply and driving
+ the CPEN pin requires the configuration of the UPLI_USE__EXTVBUS
+ bit in ULPI_BUSCONTROL.
+ $ref: /schemas/types.yaml#/definitions/flag
+
required:
- compatible
- reg
--
2.43.2
