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Commit 457d3f21 authored by Felipe Balbi's avatar Felipe Balbi
Browse files

usb: dwc3: core: drop DWC3_EVENT_BUFFERS_MAX 



hardware will tell us how many event buffers we
need to support, so let's allocate the array
dynamically too.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 5ddcee27

drivers/usb/dwc3/core.c

+6 −0
Original line number Original line Diff line number Diff line
@@ -221,6 +221,12 @@ static int __devinit dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length) 
	num = DWC3_NUM_INT(dwc->hwparams.hwparams1);

	num = DWC3_NUM_INT(dwc->hwparams.hwparams1);

	dwc->num_event_buffers = num;

	dwc->num_event_buffers = num;





	dwc->ev_buffs = kzalloc(sizeof(*dwc->ev_buffs) * num, GFP_KERNEL);

	if (!dwc->ev_buffs) {

		dev_err(dwc->dev, "can't allocate event buffers array\n");

		return -ENOMEM;

	}



	for (i = 0; i < num; i++) {

	for (i = 0; i < num; i++) {

		struct dwc3_event_buffer	*evt;

		struct dwc3_event_buffer	*evt;

drivers/usb/dwc3/core.h

+1 −2
Original line number Original line Diff line number Diff line
@@ -53,7 +53,6 @@ 
/* Global constants */

/* Global constants */

#define DWC3_ENDPOINTS_NUM	32

#define DWC3_ENDPOINTS_NUM	32





#define DWC3_EVENT_BUFFERS_MAX	2

#define DWC3_EVENT_BUFFERS_SIZE	PAGE_SIZE

#define DWC3_EVENT_BUFFERS_SIZE	PAGE_SIZE

#define DWC3_EVENT_TYPE_MASK	0xfe

#define DWC3_EVENT_TYPE_MASK	0xfe
@@ -603,7 +602,7 @@ struct dwc3 { 
	struct platform_device	*xhci;

	struct platform_device	*xhci;

	struct resource		*res;

	struct resource		*res;





	struct dwc3_event_buffer *ev_buffs[DWC3_EVENT_BUFFERS_MAX];

	struct dwc3_event_buffer **ev_buffs;

	struct dwc3_ep		*eps[DWC3_ENDPOINTS_NUM];

	struct dwc3_ep		*eps[DWC3_ENDPOINTS_NUM];





	struct usb_gadget	gadget;

	struct usb_gadget	gadget;