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usb: musb: Fix handling of spurious SESSREQ

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Rely on VBUS being valid on top off B device.

Signed-off-by: Heikki Krogerus <heikki.krogerus@nokia.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Heikki Krogerus 2010-10-29 04:23:27 -05:00 committed by Felipe Balbi
parent b212091474
commit 19aab56c7f
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/musb/musb_core.c
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@ -552,7 +552,8 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
if (int_usb & MUSB_INTR_SESSREQ) {
void __iomem *mbase = musb->mregs;
if (devctl & MUSB_DEVCTL_BDEVICE) {
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS
&& (devctl & MUSB_DEVCTL_BDEVICE)) {
DBG(3, "SessReq while on B state\n");
return IRQ_HANDLED;
}