[PATCH v5 6/8] usb: dwc3: check for requests in started list for stream capable endpoints

Anurag Kumar Vulisha
2018-09-15T14:30:48Z

For stream capable endpoints, uas layer can queue mulpile requests on
single ep with different stream ids. So, there can be multiple pending
requests waiting to be transferred. This patch changes the code to check
for any pending requests waiting to be transferred on ep started_list and
calls __dwc3_gadget_kick_transfer() if any.

Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com>
Reviewed-by: Thinh Nguyen <thinhn@synopsys.com>
---
Changes in v5:
1. None

Changes in v4:
1. None

Changes in v3:
1. None

Changes in v2:
1. None
---
drivers/usb/dwc3/gadget.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index b2d68f1..1cb7df9 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2433,6 +2433,9 @@ static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,

dwc3_gadget_ep_cleanup_completed_requests(dep, event, status);

+ if (dep->stream_capable && !list_empty(&dep->started_list))
+ __dwc3_gadget_kick_transfer(dep);
+
if (stop) {
dwc3_stop_active_transfer(dep, true);
dep->flags = DWC3_EP_ENABLED;
--
2.1.1