diff options
| author | Kishon Vijay Abraham I <kishon@ti.com> | 2015-02-23 13:10:15 (GMT) |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2015-04-14 03:48:10 (GMT) |
| commit | 8d488f3e16f1a7f2b6b3d1f8420b0871123e56f8 (patch) | |
| tree | fd4e89f8c447d958809113cc7dfbc5cb461f4268 /drivers/usb/dwc3/gadget.c | |
| parent | 1f78f8fedab10f7b30559d6db9b142be5b6daf75 (diff) | |
| download | u-boot-fsl-qoriq-8d488f3e16f1a7f2b6b3d1f8420b0871123e56f8.tar.xz | |
usb: dwc3: Add chained TRB support for ep0
dwc3 can do only max packet aligned transfers. So in case request length
is not max packet aligned and is bigger than DWC3_EP0_BOUNCE_SIZE
two chained TRBs is required to handle the transfer.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 8560b88..c8b7499 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2580,7 +2580,7 @@ int dwc3_gadget_init(struct dwc3 *dwc) goto err0; } - dwc->ep0_trb = dma_alloc_coherent(sizeof(*dwc->ep0_trb), + dwc->ep0_trb = dma_alloc_coherent(sizeof(*dwc->ep0_trb) * 2, (unsigned long *)&dwc->ep0_trb_addr); if (!dwc->ep0_trb) { dev_err(dwc->dev, "failed to allocate ep0 trb\n"); |