usb: dwc3: gadget: Improve TRB ZLP setup

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For OUT requests that requires extra TRBs for ZLP. We don't need to
prepare the 0-length TRB and simply prepare the MPS size TRB. This
reduces 1 TRB needed to prepare for ZLP.

Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>

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Thinh Nguyen 2020-09-24 01:21:36 -07:00 • committed by Felipe Balbi

parent 2b80357b77

commit a2841f41d0

1 changed files with 18 additions and 32 deletions

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drivers/usb/dwc3/gadget.c

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