diff options
| author | Bin Liu <b-liu@ti.com> | 2013-10-30 18:38:23 +0400 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2013-11-26 21:44:40 +0400 |
| commit | 5ace3d00fa11bb9ec5e1cc02805ac27201f27e61 (patch) | |
| tree | 714f6498e9c8d309326793e57f558480f92f8fd0 /drivers/usb | |
| parent | e1d2e31975e1e3a31ac592d5b1c5cb5d655b3f4e (diff) | |
| download | linux-5ace3d00fa11bb9ec5e1cc02805ac27201f27e61.tar.xz | |
usb: musb: dsps: polling ID pin status only in otg mode
Only start the otg_timer in dual role mode; otherwise in peripheral mode
when musb is disconnected from the host port, otg_timer starts and
continuously toggles the session, which causes VBUS pulse.
Signed-off-by: Bin Liu <b-liu@ti.com>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/musb/musb_dsps.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c index 7cfa6e80ad60..593d3c962565 100644 --- a/drivers/usb/musb/musb_dsps.c +++ b/drivers/usb/musb/musb_dsps.c @@ -359,8 +359,9 @@ static irqreturn_t dsps_interrupt(int irq, void *hci) if (musb->int_tx || musb->int_rx || musb->int_usb) ret |= musb_interrupt(musb); - /* Poll for ID change */ - if (musb->xceiv->state == OTG_STATE_B_IDLE) + /* Poll for ID change in OTG port mode */ + if (musb->xceiv->state == OTG_STATE_B_IDLE && + musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE) mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ); out: spin_unlock_irqrestore(&musb->lock, flags); |