diff options
| author | Grigor Tovmasyan <Grigor.Tovmasyan@synopsys.com> | 2018-08-29 20:00:33 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-10-02 10:49:50 +0300 |
| commit | 48dac4e4a5eed3fa478db2c59945b6283281566d (patch) | |
| tree | f53f7049a9cc5a9841e08b62a0195f5074ae4de0 /drivers/usb/dwc2 | |
| parent | 9d630b9cde28dc261cdfc608ed68ef5487404422 (diff) | |
| download | linux-48dac4e4a5eed3fa478db2c59945b6283281566d.tar.xz | |
usb: dwc2: Update target (u)frame calculation
In service interval based scheduling target (u)frame must be
set as a last frame in this the service interval.
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Signed-off-by: Grigor Tovmasyan <tovmasya@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/gadget.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 71f097d89001..9de16453a890 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -2830,6 +2830,23 @@ static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep) if (using_desc_dma(hsotg)) { hs_ep->target_frame = hsotg->frame_number; dwc2_gadget_incr_frame_num(hs_ep); + + /* In service interval mode target_frame must + * be set to last (u)frame of the service interval. + */ + if (hsotg->params.service_interval) { + /* Set target_frame to the first (u)frame of + * the service interval + */ + hs_ep->target_frame &= ~hs_ep->interval + 1; + + /* Set target_frame to the last (u)frame of + * the service interval + */ + dwc2_gadget_incr_frame_num(hs_ep); + dwc2_gadget_dec_frame_num_by_one(hs_ep); + } + dwc2_gadget_start_isoc_ddma(hs_ep); return; } |