Commit f62afb49 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: gadget: always start isochronous aligned to dep->interval 



We will *always* start transfer to the next uFrame number aligned to
dep->interval.

Signed-off-by: default avatarFelipe Balbi <felipe.balbi@linux.intel.com>
parent d513320f

drivers/usb/dwc3/gadget.c

+5 −10
Original line number Diff line number Diff line
@@ -27,6 +27,9 @@ 
#include "gadget.h"

#include "io.h"



#define DWC3_ALIGN_FRAME(d)	(((d)->frame_number + (d)->interval) \

					& ~((d)->interval - 1))



/**

 * dwc3_gadget_set_test_mode - enables usb2 test modes

 * @dwc: pointer to our context structure
@@ -1267,11 +1270,7 @@ static void __dwc3_gadget_start_isoc(struct dwc3_ep *dep) 
		return;

	}



	/*

	 * Schedule the first trb for one interval in the future or at

	 * least 4 microframes.

	 */

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

	dep->frame_number = DWC3_ALIGN_FRAME(dep);

	__dwc3_gadget_kick_transfer(dep);

}
@@ -2377,11 +2376,7 @@ static void dwc3_gadget_ep_cleanup_completed_requests(struct dwc3_ep *dep, 
static void dwc3_gadget_endpoint_frame_from_event(struct dwc3_ep *dep,

		const struct dwc3_event_depevt *event)

{

	u32 cur_uf, mask;



	mask = ~(dep->interval - 1);

	cur_uf = event->parameters & mask;

	dep->frame_number = cur_uf;

	dep->frame_number = event->parameters;

}



static void dwc3_gadget_endpoint_transfer_in_progress(struct dwc3_ep *dep,