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SubjectRe: [PATCH] dt-bindings: usb: dwc2: document the vbus-supply property
On Wed, Mar 6, 2019 at 10:24 PM Martin Blumenstingl
<> wrote:
> Various boards have an external VBUS supply regulator. This regulator
> depends on the current mode of the controller which is defined as:
> - dr_mode set to either "host" or "peripheral" (fixed value)
> - dr_mode set to "otg", based on the OTG status the dwc2 controller
> internally switches between "host" and "peripheral" mode (selection
> happens at runtime)
> Based on the current mode the regulator has to be enabled or disabled:
> - host: provide power to the connected USB device, thus the regulator
> has to be enabled
> - peripheral: the host device to which the controller is connected
> provides power, thus the regulator has to be disabled
> Add the dt-bindings documentation for this property so .dts authors know
> that this property exists and how it behaves.
> Fixes: 531ef5ebea9639 ("usb: dwc2: add support for host mode external vbus supply")
> Signed-off-by: Martin Blumenstingl <>
gentle ping as I may have sent this when most -next and -fixes trees
were closed (right before the v5.0 release)

it's not a change which is visible at runtime (users don't care) so
it's not urgent.
however, it still adds missing documentation which is useful when
writing .dts files with a dwc2 controller.


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