diff options
| author |   Thinh Nguyen <Thinh.Nguyen@synopsys.com> | 2021-02-08 13:53:16 -0800 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-09 09:39:52 +0100 |
| commit | 4b049f55ed95cd889bcdb3034fd75e1f01852b38 (patch) | |
| tree | 644eb614be72d92e7d03175a953a1babf362a3ee /drivers/usb/dwc3/gadget.c | |
| parent | usb: dwc3: gadget: Fix setting of DEPCFG.bInterval_m1 (diff) | |
| download | linux-dev-4b049f55ed95cd889bcdb3034fd75e1f01852b38.tar.xz linux-dev-4b049f55ed95cd889bcdb3034fd75e1f01852b38.zip | |
usb: dwc3: gadget: Fix dep->interval for fullspeed interrupt
The dep->interval captures the number of frames/microframes per interval
from bInterval. Fullspeed interrupt endpoint bInterval is the number of
frames per interval and not 2^(bInterval - 1). So fix it here. This
change is only for debugging purpose and should not affect the interrupt
endpoint operation.
Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/1263b563dedc4ab8b0fb854fba06ce4bc56bd495.1612820995.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index d0f8d3ec855f..aebcf8ec0716 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -615,8 +615,13 @@ static int dwc3_gadget_set_ep_config(struct dwc3_ep *dep, unsigned int action) if (dwc->gadget->speed == USB_SPEED_FULL) bInterval_m1 = 0; + if (usb_endpoint_type(desc) == USB_ENDPOINT_XFER_INT && + dwc->gadget->speed == USB_SPEED_FULL) + dep->interval = desc->bInterval; + else + dep->interval = 1 << (desc->bInterval - 1); + params.param1 |= DWC3_DEPCFG_BINTERVAL_M1(bInterval_m1); - dep->interval = 1 << (desc->bInterval - 1); } return dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_SETEPCONFIG, ¶ms); |