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List:       git-commits-head
Subject:    USB: musb: resume suspended root hub on disconnect
From:       Linux Kernel Mailing List <linux-kernel () vger ! kernel ! org>
Date:       2009-02-28 2:02:10
Message-ID: 200902280202.n1S22AkN014681 () hera ! kernel ! org
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Gitweb:     http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5c23c9078f8e3476982409b1075b54c8cd65e82c
Commit:     5c23c9078f8e3476982409b1075b54c8cd65e82c
Parent:     136733d6124a152ed2b61c3d38008c6581fc8685
Author:     Anand Gadiyar <gadiyar@ti.com>
AuthorDate: Sat Feb 21 15:31:40 2009 -0800
Committer:  Greg Kroah-Hartman <gregkh@suse.de>
CommitDate: Fri Feb 27 14:40:51 2009 -0800

    USB: musb: resume suspended root hub on disconnect
    
    If this is not done, khubd will not be informed of the disconnect
    and will assume the device is still there.
    
    Easily seen when a hub is connected with no device attached to it;
    it will autosuspend.  When the hub is disconnected, it still shows
    up in /proc/bus/usb/devices
    
    Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
    Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 drivers/usb/musb/musb_core.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index b120fdc..60cbaec 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -767,6 +767,7 @@ static irqreturn_t musb_stage2_irq(struct musb *musb, u8 int_usb,
 #ifdef CONFIG_USB_MUSB_HDRC_HCD
 		case OTG_STATE_A_HOST:
 		case OTG_STATE_A_SUSPEND:
+			usb_hcd_resume_root_hub(musb_to_hcd(musb));
 			musb_root_disconnect(musb);
 			if (musb->a_wait_bcon != 0)
 				musb_platform_try_idle(musb, jiffies
--
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