Signed-off-by: Stefan Brüns stefan.bruens@rwth-aachen.de --- drivers/usb/host/dwc2.c | 34 ---------------------------------- 1 file changed, 34 deletions(-)
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index 0bf3ee5..baf78d8 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -806,40 +806,6 @@ static int dwc_otg_submit_rh_msg(struct dwc2_priv *priv, struct usb_device *dev, return stat; }
-int wait_for_chhltd(struct dwc2_core_regs *regs, uint32_t *sub, int *toggle, - bool ignore_ack) -{ - uint32_t hcint_comp_hlt_ack = DWC2_HCINT_XFERCOMP | DWC2_HCINT_CHHLTD; - struct dwc2_hc_regs *hc_regs = ®s->hc_regs[DWC2_HC_CHANNEL]; - int ret; - uint32_t hcint, hctsiz; - - ret = wait_for_bit(&hc_regs->hcint, DWC2_HCINT_CHHLTD, true); - if (ret) - return ret; - - hcint = readl(&hc_regs->hcint); - if (hcint & (DWC2_HCINT_NAK | DWC2_HCINT_FRMOVRUN)) - return -EAGAIN; - if (ignore_ack) - hcint &= ~DWC2_HCINT_ACK; - else - hcint_comp_hlt_ack |= DWC2_HCINT_ACK; - if (hcint != hcint_comp_hlt_ack) { - debug("%s: Error (HCINT=%08x)\n", __func__, hcint); - return -EINVAL; - } - - hctsiz = readl(&hc_regs->hctsiz); - *sub = (hctsiz & DWC2_HCTSIZ_XFERSIZE_MASK) >> - DWC2_HCTSIZ_XFERSIZE_OFFSET; - *toggle = (hctsiz & DWC2_HCTSIZ_PID_MASK) >> DWC2_HCTSIZ_PID_OFFSET; - - debug("%s: sub=%u toggle=%d\n", __func__, *sub, *toggle); - - return 0; -} - static int dwc2_eptype[] = { DWC2_HCCHAR_EPTYPE_ISOC, DWC2_HCCHAR_EPTYPE_INTR,