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Commit 74c32cc6 authored by Felipe Balbi's avatar Felipe Balbi Committed by Hemant Kumar
Browse files

usb: dwc3: gadget: cache frame number in struct dwc3_ep 



This is in preparation to simplifying prototype of
__dwc3_gadget_kick_transfer().

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
Git-commit: 502a37b98a7bd45a198139e52671833469720c38
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: default avatarHemant Kumar <hemantk@codeaurora.org>
Change-Id: Ibdde571a0975fb18759269e7fa9ffa509d3f1874
parent cbf2565c

drivers/usb/dwc3/core.h

+2 −0
Original line number Diff line number Diff line
@@ -593,6 +593,7 @@ struct dwc3_ep_events { 
 * @number: endpoint number (1 - 15)

 * @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK

 * @resource_index: Resource transfer index

 * @frame_number: set to the frame number we want this transfer to start (ISOC)

 * @interval: the interval on which the ISOC transfer is started

 * @allocated_requests: number of requests allocated

 * @queued_requests: number of requests queued for transfer
@@ -651,6 +652,7 @@ struct dwc3_ep { 
	u8			resource_index;

	u32			allocated_requests;

	u32			queued_requests;

	u32			frame_number;

	u32			interval;



	char			name[20];

drivers/usb/dwc3/gadget.c

+2 −5
Original line number Diff line number Diff line
@@ -1419,8 +1419,6 @@ static int __dwc3_gadget_get_frame(struct dwc3 *dwc) 
static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,

		struct dwc3_ep *dep, u32 cur_uf)

{

	u32 uf;



	if (list_empty(&dep->pending_list)) {

		dev_info(dwc->dev, "%s: ran out of requests\n",

				dep->name);
@@ -1432,9 +1430,8 @@ static void __dwc3_gadget_start_isoc(struct dwc3 *dwc, 
	 * Schedule the first trb for one interval in the future or at

	 * least 4 microframes.

	 */

	uf = cur_uf + max_t(u32, 4, dep->interval);



	__dwc3_gadget_kick_transfer(dep, uf);

	dep->frame_number = cur_uf + max_t(u32, 4, dep->interval);

	__dwc3_gadget_kick_transfer(dep, dep->frame_number);

}



static void dwc3_gadget_start_isoc(struct dwc3 *dwc,