shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-10 04:48:04 +09:00
Code Issues Packages Projects Releases Wiki Activity

UPSTREAM: usb: dwc3: ep0: fix setup_packet_pending initialization

Browse Source 
It just ocurred to me that dwc3 already gives a
really hint of when a setup packet is pending and
that's the SETUP_PENDING TRB Status for EP0 IRQs.

Fix setup_packet_pending initialization based on
that. While at that, also make sure the comment in
gadget.c matches what code is doing.

Signed-off-by: Felipe Balbi <balbi@ti.com>
(cherry picked from commit b5d335e5ea)

Change-Id: I9e197bee86b681e3d0da8692df8fac861eb00844
Signed-off-by: Wu Liang feng <wulf@rock-chips.com>
This commit is contained in:
Felipe Balbi
2015-11-16 16:20:34 -06:00
committed by Wu Liang feng
parent d9863c64a6
commit bfb4bdd41b
2 changed files with 7 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/usb/dwc3/ep0.c
View File

@@ -817,6 +817,8 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (status == DWC3_TRBSTS_SETUP_PENDING) {
dwc->setup_packet_pending = true;
dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
if (r)
@@ -916,8 +918,10 @@ static void dwc3_ep0_complete_status(struct dwc3 *dwc,
}
status = DWC3_TRB_SIZE_TRBSTS(trb->size);
if (status == DWC3_TRBSTS_SETUP_PENDING)
if (status == DWC3_TRBSTS_SETUP_PENDING) {
dwc->setup_packet_pending = true;
dwc3_trace(trace_dwc3_ep0, "Setup Pending received");
}
dwc->ep0state = EP0_SETUP_PHASE;
dwc3_ep0_out_start(dwc);
@@ -1063,8 +1067,6 @@ static void dwc3_ep0_end_control_data(struct dwc3 *dwc, struct dwc3_ep *dep)
static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
const struct dwc3_event_depevt *event)
{
dwc->setup_packet_pending = true;
switch (event->status) {
case DEPEVT_STATUS_CONTROL_DATA:
dwc3_trace(trace_dwc3_ep0, "Control Data");

4
drivers/usb/dwc3/gadget.c
View File

@@ -2230,8 +2230,8 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
*
* Our suggested workaround is to follow the Disconnect
* Event steps here, instead, based on a setup_packet_pending
* flag. Such flag gets set whenever we have a XferNotReady
* event on EP0 and gets cleared on XferComplete for the
* flag. Such flag gets set whenever we have a SETUP_PENDING
* status for EP0 TRBs and gets cleared on XferComplete for the
* same endpoint.
*
* Refers to: