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authorBin Liu <b-liu@ti.com>2015-09-16 14:49:28 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-10-22 14:49:29 -0700
commita0a74dced8b46210a838a7d5f6ce18c9da58561d (patch)
treee8813f1ad5643c575b91ef3806327863a3724519
parente716af1ed89ba0a44094e149939810dca2172226 (diff)
usb: musb: dsps: fix polling in device-only mode
commit b8239dcc03afbd0886c1d9b91ba8fee7c6c9a6cb upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-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 1334a3de31b8..67325ec94894 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);
}