Commit 7acd85e0 authored by Paul Zimmerman's avatar Paul Zimmerman Committed by Felipe Balbi
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usb: dwc3: core: make sure evt->lpos is correctly initialized 



The same event buffers will be reused when coming
out of hibernation, so we must reinitialize them
properly to avoid any mistakes.

While at that, also take dwc3_event_buffers_setup()
out of __devinit section.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 802fde98

drivers/usb/dwc3/core.c

+6 −1
Original line number Diff line number Diff line
@@ -255,7 +255,7 @@ static int __devinit dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length) 
 *

 * Returns 0 on success otherwise negative errno.

 */

static int __devinit dwc3_event_buffers_setup(struct dwc3 *dwc)

static int dwc3_event_buffers_setup(struct dwc3 *dwc)

{

	struct dwc3_event_buffer	*evt;

	int				n;
@@ -266,6 +266,8 @@ static int __devinit dwc3_event_buffers_setup(struct dwc3 *dwc) 
				evt->buf, (unsigned long long) evt->dma,

				evt->length);



		evt->lpos = 0;



		dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(n),

				lower_32_bits(evt->dma));

		dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n),
@@ -285,6 +287,9 @@ static void dwc3_event_buffers_cleanup(struct dwc3 *dwc) 


	for (n = 0; n < dwc->num_event_buffers; n++) {

		evt = dwc->ev_buffs[n];



		evt->lpos = 0;



		dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(n), 0);

		dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n), 0);

		dwc3_writel(dwc->regs, DWC3_GEVNTSIZ(n), 0);