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authorBin Liu <b-liu@ti.com>2015-09-16 21:49:28 +0200
committerFelipe Balbi <balbi@ti.com>2015-09-21 21:42:35 +0200
commitb8239dcc03afbd0886c1d9b91ba8fee7c6c9a6cb (patch)
tree049ec2e1a0d2c932e1d555cfcbd0c390cb09e98b
parentusb: gadget: atmel_usba_udc: add ep capabilities support on device tree binding (diff)
downloadlinux-b8239dcc03afbd0886c1d9b91ba8fee7c6c9a6cb.tar.xz
linux-b8239dcc03afbd0886c1d9b91ba8fee7c6c9a6cb.zip
usb: musb: dsps: fix polling in device-only mode
Fix the regression caused by commit ad78c918602 ("usb: musb: dsps: just start polling already") which causes polling the ID pin status even in device-only mode. Fixes: ad78c918602c ("usb: musb: dsps: just start polling already") Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
-rw-r--r--drivers/usb/musb/musb_dsps.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index a0cfead6150f..84512d1d5eee 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -225,8 +225,11 @@ static void dsps_musb_enable(struct musb *musb)
dsps_writel(reg_base, wrp->epintr_set, epmask);
dsps_writel(reg_base, wrp->coreintr_set, coremask);
- /* start polling for ID change. */
- mod_timer(&glue->timer, jiffies + msecs_to_jiffies(wrp->poll_timeout));
+ /* start polling for ID change in dual-role idle mode */
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE &&
+ musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
+ mod_timer(&glue->timer, jiffies +
+ msecs_to_jiffies(wrp->poll_timeout));
dsps_musb_try_idle(musb, 0);
}