Hi,
On Fri, Oct 29, 2010 at 08:02:15AM +0200, ext Gupta, Ajay Kumar wrote:
> Felipe/Heikki,
>
> This patch is needs to be modified so that we service the real SRP interrupt
> From B-device.
>
> As per current musb driver when we connect the mini-A plug to A-device and
> Mini-B plug to B-device then DEVCTL on either side would show the interface
> To be in B-device. Thus we can't reply on D7 bit of DEVCTL at this moment.
>
> Moreover Mentor document also says that D7 bit of DEVCTL is valid only
> when a SESSION is in progress.
How about this:
diff --git a/drivers/usb/musb/musb_core.c
b/drivers/usb/musb/musb_core.c
index c9f9024..4bb8812 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -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;
}
--
heikki
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