Hi,
Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> writes:
> The START_TRANSFER command needs to be executed while in ON/U0 link
> state (with an exception during register initialization). Don't use
> dwc->link_state to check this since the driver only tracks the link
> state when the link state change interrupt is enabled. Check the link
> state from DSTS register instead.
>
> Note that often the host already brings the device out of low power
> before it sends/requests the next transfer. So, the user won't see any
> issue when the device starts transfer then. This issue is more
> noticeable in cases when the device delays starting transfer, which can
> happen during delayed control status after the host put the device in
> low power.
>
> Cc: <stable@xxxxxxxxxxxxxxx>
> Fixes: 799e9dc82968 ("usb: dwc3: gadget: conditionally disable Link State change events")
> Signed-off-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Acked-by: Felipe Balbi <balbi@xxxxxxxxxx>
--
balbi
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