[U-Boot] [PATCH 6/6] usb: dwc2: remove no longer used wait_for_chhltd()

Stefan Brüns
2015-12-13T04:17:58Z

Signed-off-by: Stefan Br?ns <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 = &regs->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,
--
2.1.4