Commit 74674cbf authored by Felipe Balbi's avatar Felipe Balbi
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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: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent e9af9229

drivers/usb/dwc3/core.h

+2 −0
Original line number Diff line number Diff line
@@ -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;

drivers/usb/dwc3/gadget.c

+1 −0
Original line number Diff line number Diff line
@@ -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);