Hello.
On 03/20/2015 06:36 PM, Mian Yousaf Kaukab wrote:
From: Gregory Herrero <gregory.herrero@xxxxxxxxx>
ResetDet interrupt is used to detect a reset of the bus
while the controller is suspended.
This may happens for example when using Command Verifier.
Signed-off-by: Gregory Herrero <gregory.herrero@xxxxxxxxx>
---
drivers/usb/dwc2/gadget.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index bed56dc..d528c02 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
[...]
@@ -2475,7 +2476,19 @@ irq_retry:
}
}
- if (gintsts & GINTSTS_USBRST) {
+ if (gintsts & GINTSTS_RESETDET) {
+ dev_dbg(hsotg->dev, "%s: USBRstDet\n", __func__);
+
+ writel(GINTSTS_RESETDET, hsotg->regs + GINTSTS);
+
+ /* This event must be used only if controller is suspended */
+ if (hsotg->lx_state == DWC2_L2) {
+ dwc2_exit_hibernation(hsotg, true);
+ hsotg->lx_state = DWC2_L0;
+ }
+ }
+
+ if ((gintsts & GINTSTS_USBRST) || (gintsts & GINTSTS_RESETDET)) {
if (gintsts & (GINTSTS_USBRST | GINTSTS_RESETDET)) {
[...]
WBR, Sergei
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