Patch "usb: musb: dsps: fix polling in device-only mode" has been added to the 4.1-stable tree

Patch "usb: musb: dsps: fix polling in device-only mode" has been added to the 4.1-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    usb: musb: dsps: fix polling in device-only mode

to the 4.1-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     usb-musb-dsps-fix-polling-in-device-only-mode.patch
and it can be found in the queue-4.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From b8239dcc03afbd0886c1d9b91ba8fee7c6c9a6cb Mon Sep 17 00:00:00 2001
From: Bin Liu <b-liu@ti.com>
Date: Wed, 16 Sep 2015 14:49:28 -0500
Subject: usb: musb: dsps: fix polling in device-only mode

From: Bin Liu <b-liu@ti.com>

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>

---
 drivers/usb/musb/musb_dsps.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- 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
 
 	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);
 }
 


Patches currently in stable-queue which might be from b-liu@ti.com are

queue-4.1/usb-musb-dsps-fix-polling-in-device-only-mode.patch