diff options
| author | Frank Li <Frank.Li@nxp.com> | 2023-10-27 21:39:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-11-22 15:02:53 +0300 |
| commit | 7836be3b100cfc6db3db7ddeb985254bfe1775e4 (patch) | |
| tree | 3d25ef75bf9a8d8c82dde609dc5d8ff229741832 | |
| parent | a776452debdcad6d6e6f8f89fb26496038c86074 (diff) | |
| download | linux-7836be3b100cfc6db3db7ddeb985254bfe1775e4.tar.xz | |
usb: cdns3: skip set TRB_IOC when usb_request: no_interrupt is true
No completion irq is needed if no_interrupt is true. Needn't set TRB_IOC
at this case.
Check usb_request: no_interrupt and set/skip TRB_IOC in
cdns3_ep_run_transfer().
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Link: https://lore.kernel.org/r/20231027183919.664271-1-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/cdns3/cdns3-gadget.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/usb/cdns3/cdns3-gadget.c b/drivers/usb/cdns3/cdns3-gadget.c index 11a5b3437c32..15463b7cddd2 100644 --- a/drivers/usb/cdns3/cdns3-gadget.c +++ b/drivers/usb/cdns3/cdns3-gadget.c @@ -1126,6 +1126,7 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep, u16 total_tdl = 0; struct scatterlist *s = NULL; bool sg_supported = !!(request->num_mapped_sgs); + u32 ioc = request->no_interrupt ? 0 : TRB_IOC; if (priv_ep->type == USB_ENDPOINT_XFER_ISOC) num_trb = priv_ep->interval; @@ -1235,11 +1236,11 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep, control |= pcs; if (priv_ep->type == USB_ENDPOINT_XFER_ISOC && !priv_ep->dir) { - control |= TRB_IOC | TRB_ISP; + control |= ioc | TRB_ISP; } else { /* for last element in TD or in SG list */ if (sg_iter == (num_trb - 1) && sg_iter != 0) - control |= pcs | TRB_IOC | TRB_ISP; + control |= pcs | ioc | TRB_ISP; } if (sg_iter) @@ -1270,7 +1271,7 @@ static int cdns3_ep_run_transfer(struct cdns3_endpoint *priv_ep, priv_req->num_of_trb = num_trb; if (sg_iter == 1) - trb->control |= cpu_to_le32(TRB_IOC | TRB_ISP); + trb->control |= cpu_to_le32(ioc | TRB_ISP); if (priv_dev->dev_ver < DEV_VER_V2 && (priv_ep->flags & EP_TDLCHK_EN)) { |