usb: dwc3: gadget: Revise setting IOC when no TRB left

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To keep the setting of interrupt-on-completion (IOC) when out of TRBs
consistent and easier to read, the caller of dwc3_prepare_one_trb()
will determine if the TRB must have IOC bit set. This also reduces the
number of times we need to call dwc3_calc_trbs_left(). Note that we only
care about setting IOC from insufficient number of TRBs for SG and not
linear requests (because we don't need to split linear requests).

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

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Thinh Nguyen 2020-09-30 17:44:25 -07:00 • committed by Felipe Balbi

parent f9cc581bad

commit 8dbbe48c7a

1 changed files with 9 additions and 8 deletions

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drivers/usb/dwc3/gadget.c

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