usb: dwc3: gadget: Force sending delayed status during soft disconnect

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If any function drivers request for a delayed status phase, this leads to a
SETUP transfer timeout error, since the function may take longer to process
the DATA stage.  This eventually results in end transfer timeouts, as there
is a pending SETUP transaction.

In addition, allow the DWC3_EP_DELAY_STOP to be set for if there is a
delayed status requested.  Ocasionally, a host may abort the current SETUP
transaction, by issuing a subsequent SETUP token.  In those situations, it
would result in an endxfer timeout as well.

Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Link: https://lore.kernel.org/r/20220817182359.13550-3-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Wesley Cheng 2022-08-17 11:23:52 -07:00 • committed by Greg Kroah-Hartman

parent 359d5a85a7

commit e1ee843488

1 changed files with 4 additions and 1 deletions

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drivers/usb/dwc3/gadget.c

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