diff options
Diffstat (limited to 'drivers/usb/dwc2/core.c')
| -rw-r--r-- | drivers/usb/dwc2/core.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index 97de85521eb6..0a9ebe00fbcc 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -1707,6 +1707,7 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, u32 hcchar; u32 hctsiz = 0; u16 num_packets; + u32 ec_mc; if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "%s()\n", __func__); @@ -1743,6 +1744,13 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, hctsiz |= chan->xfer_len << TSIZ_XFERSIZE_SHIFT & TSIZ_XFERSIZE_MASK; + + /* For split set ec_mc for immediate retries */ + if (chan->ep_type == USB_ENDPOINT_XFER_INT || + chan->ep_type == USB_ENDPOINT_XFER_ISOC) + ec_mc = 3; + else + ec_mc = 1; } else { if (dbg_hc(chan)) dev_vdbg(hsotg->dev, "no split\n"); @@ -1805,6 +1813,9 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, hctsiz |= chan->xfer_len << TSIZ_XFERSIZE_SHIFT & TSIZ_XFERSIZE_MASK; + + /* The ec_mc gets the multi_count for non-split */ + ec_mc = chan->multi_count; } chan->start_pkt_count = num_packets; @@ -1855,8 +1866,7 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg, hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num)); hcchar &= ~HCCHAR_MULTICNT_MASK; - hcchar |= chan->multi_count << HCCHAR_MULTICNT_SHIFT & - HCCHAR_MULTICNT_MASK; + hcchar |= (ec_mc << HCCHAR_MULTICNT_SHIFT) & HCCHAR_MULTICNT_MASK; dwc2_hc_set_even_odd_frame(hsotg, chan, &hcchar); if (hcchar & HCCHAR_CHDIS) |