diff options
| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-04-13 16:44:39 +0300 |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-06-20 12:32:38 +0300 |
| commit | 74674cbf858ff6a83c3f06f4ab0ffa5d3c91bf0b (patch) | |
| tree | c07584f7e1c2155dc253ba148a9045c83669ca31 | |
| parent | e9af9229098d92145d0b894b78878bbc6ac7c910 (diff) | |
usb: dwc3: gadget: add a per-endpoint request queue lock
This will allow us to process several endpoints at a
time by making sure that we lock only shared
resources.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/dwc3/core.h | 2 | ||||
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 94b9fd2d583e..484bb5d8261c 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -482,6 +482,7 @@ struct dwc3_event_buffer { * @endpoint: usb endpoint * @pending_list: list of pending requests for this endpoint * @started_list: list of started requests on this endpoint + * @lock: spinlock for endpoint request queue traversal * @regs: pointer to first endpoint register * @trb_pool: array of transaction buffers * @trb_pool_dma: dma address of @trb_pool @@ -504,6 +505,7 @@ struct dwc3_ep { struct list_head pending_list; struct list_head started_list; + spinlock_t lock; void __iomem *regs; struct dwc3_trb *trb_pool; diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 194775184a58..8b932033d29b 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1845,6 +1845,7 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc, (epnum & 1) ? "in" : "out"); dep->endpoint.name = dep->name; + spin_lock_init(&dep->lock); dwc3_trace(trace_dwc3_gadget, "initializing %s", dep->name); |