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path: root/drivers/usb/dwc2/gadget.c
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Diffstat (limited to 'drivers/usb/dwc2/gadget.c')
-rw-r--r--drivers/usb/dwc2/gadget.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index f0d9ccf1d665..a0f82cca2d9a 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -812,6 +812,7 @@ static int dwc2_gadget_fill_isoc_desc(struct dwc2_hsotg_ep *hs_ep,
u32 index;
u32 maxsize = 0;
u32 mask = 0;
+ u8 pid = 0;
maxsize = dwc2_gadget_get_desc_params(hs_ep, &mask);
@@ -840,7 +841,11 @@ static int dwc2_gadget_fill_isoc_desc(struct dwc2_hsotg_ep *hs_ep,
((len << DEV_DMA_NBYTES_SHIFT) & mask));
if (hs_ep->dir_in) {
- desc->status |= ((hs_ep->mc << DEV_DMA_ISOC_PID_SHIFT) &
+ if (len)
+ pid = DIV_ROUND_UP(len, hs_ep->ep.maxpacket);
+ else
+ pid = 1;
+ desc->status |= ((pid << DEV_DMA_ISOC_PID_SHIFT) &
DEV_DMA_ISOC_PID_MASK) |
((len % hs_ep->ep.maxpacket) ?
DEV_DMA_SHORT : 0) |
@@ -884,6 +889,7 @@ static void dwc2_gadget_start_isoc_ddma(struct dwc2_hsotg_ep *hs_ep)
struct dwc2_dma_desc *desc;
if (list_empty(&hs_ep->queue)) {
+ hs_ep->target_frame = TARGET_FRAME_INITIAL;
dev_dbg(hsotg->dev, "%s: No requests in queue\n", __func__);
return;
}
@@ -2755,8 +2761,6 @@ static void dwc2_gadget_handle_out_token_ep_disabled(struct dwc2_hsotg_ep *ep)
*/
tmp = dwc2_hsotg_read_frameno(hsotg);
- dwc2_hsotg_complete_request(hsotg, ep, get_ep_head(ep), 0);
-
if (using_desc_dma(hsotg)) {
if (ep->target_frame == TARGET_FRAME_INITIAL) {
/* Start first ISO Out */
@@ -2817,9 +2821,6 @@ static void dwc2_gadget_handle_nak(struct dwc2_hsotg_ep *hs_ep)
tmp = dwc2_hsotg_read_frameno(hsotg);
if (using_desc_dma(hsotg)) {
- dwc2_hsotg_complete_request(hsotg, hs_ep,
- get_ep_head(hs_ep), 0);
-
hs_ep->target_frame = tmp;
dwc2_gadget_incr_frame_num(hs_ep);
dwc2_gadget_start_isoc_ddma(hs_ep);
@@ -4739,9 +4740,11 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg)
}
ret = usb_add_gadget_udc(dev, &hsotg->gadget);
- if (ret)
+ if (ret) {
+ dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep,
+ hsotg->ctrl_req);
return ret;
-
+ }
dwc2_hsotg_dump(hsotg);
return 0;
@@ -4755,6 +4758,7 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg)
int dwc2_hsotg_remove(struct dwc2_hsotg *hsotg)
{
usb_del_gadget_udc(&hsotg->gadget);
+ dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, hsotg->ctrl_req);
return 0;
}