Messages in this thread | | | Subject | Re: [PATCH 1/2] dt-bindings: phy: add vbus-supply optional property to phy-stm32-usbphyc | From | Amelie DELAUNAY <> | Date | Fri, 26 Mar 2021 10:05:32 +0100 |
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Hi Rob,
On 3/26/21 1:28 AM, Rob Herring wrote: > On Wed, Mar 17, 2021 at 05:09:53PM +0100, Amelie Delaunay wrote: >> This patch adds vbus-supply optional property to phy sub-nodes. >> A regulator for USB VBUS may be needed for host mode. >> >> Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com> >> --- >> Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml >> index 018cc1246ee1..ad2378c30334 100644 >> --- a/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml >> +++ b/Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml >> @@ -71,6 +71,9 @@ patternProperties: >> phy-supply: >> description: regulator providing 3V3 power supply to the PHY. >> >> + vbus-supply: >> + description: regulator providing 5V Vbus to the USB connector. > > Unless Vbus is powering the phy, then this only belongs in the USB > connector node. >
Do you mean I should declare a connector node as a child of the phy node and get the vbus-supply property from this connector node ?
In case of a on-board autonomous hub between the phy and the connectors, so no driver to drive it nor to get the vbus-supply property to provide VBUS to the hub, then the connectors, how to use connector ?
[USB controller]===[USB PHY]===[(USB HUB)]===|> USB A connector / |> USB A connector VBUS |> USB A connector |> USB A connector
Please advise.
Regards, Amelie
>> + >> "#phy-cells": >> enum: [ 0x0, 0x1 ] >> >> -- >> 2.17.1 >>
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