From: Paul Zimmerman <Paul.Zimmerman@xxxxxxxxxxxx>
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: Felipe Balbi <balbi@xxxxxx>
---
drivers/usb/dwc3/core.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index b2b4172..5683a3c 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -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);
--
1.7.10
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