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-...@ti.com>
---
drivers/usb/musb/musb_dsps.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 3cda7ad..e933dfd 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -341,8 +341,9 @@ 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);
--
1.8.4
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