diff options
| author | Heikki Krogerus | 2010-09-24 13:44:13 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2010-10-22 10:21:55 -0700 |
| commit | a6038ee76a29ea31f8aae4eb6c419794c739e077 (patch) | |
| tree | 5b546af852401f7ff8f7947799fae02af8a610a9 | |
| parent | 434678685407e045ffb246df059c486fc0a16e75 (diff) | |
usb: musb: ignore spurious SESSREQ interrupts
This will ignore any SESSREQ interrupt if musb is B state.
Charger detection may cause spurious SESSREQ interrupts.
Signed-off-by: Heikki Krogerus <ext-heikki.krogerus@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index d4f18bbc8f8f..472b2a7e7896 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -550,6 +550,11 @@ 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) { + DBG(3, "SessReq while on B state\n"); + return IRQ_HANDLED; + } + DBG(1, "SESSION_REQUEST (%s)\n", otg_state_string(musb)); /* IRQ arrives from ID pin sense or (later, if VBUS power |