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usb: dwc3: gadget: CSP is only valid for OUT endpoints
CSP bit is only valid for OUT endpoints. Synopsys databook is unclear if HW ignores CSP for IN endpoints (chances are, it does) but to avoid problems, let's make sure to set CSP only when valid to do so. Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
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1 changed files with 2 additions and 1 deletions
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@ -875,7 +875,8 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
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}
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/* always enable Continue on Short Packet */
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trb->ctrl |= DWC3_TRB_CTRL_CSP;
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if (usb_endpoint_dir_out(dep->endpoint.desc))
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trb->ctrl |= DWC3_TRB_CTRL_CSP;
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if ((!req->request.no_interrupt && !chain) ||
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(dwc3_calc_trbs_left(dep) == 0))
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