Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161989AbaKNVCX (ORCPT ); Fri, 14 Nov 2014 16:02:23 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:36485 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161709AbaKNVCW (ORCPT ); Fri, 14 Nov 2014 16:02:22 -0500 Date: Fri, 14 Nov 2014 15:02:32 -0600 From: Felipe Balbi To: George Cherian CC: Sebastian Andrzej Siewior , , , , Subject: Re: [PATCH] usb: musb: core: Disable the Interrupts till BABBLE is fully handled Message-ID: <20141114210232.GC16388@saruman> Reply-To: References: <1415953486-6000-1-git-send-email-george.cherian@ti.com> <5465C06C.90705@linutronix.de> <5465C75D.4070909@ti.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="s9fJI615cBHmzTOP" Content-Disposition: inline In-Reply-To: <5465C75D.4070909@ti.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --s9fJI615cBHmzTOP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Nov 14, 2014 at 02:41:57PM +0530, George Cherian wrote: >=20 > On 11/14/2014 02:12 PM, Sebastian Andrzej Siewior wrote: > >On 11/14/2014 09:24 AM, George Cherian wrote: > >>Disable the MUSB interrupts till MUSB is recovered fully from BABBLE > >>condition. There are chances that we could get multiple interrupts > >>till the time the babble recover work gets scheduled. Sometimes > >>this could even end up in an endless loop making MUSB itself unusable. > >How do you trigger the babble error? Is this something that happens > >during suspend resume, plugging / unplugging a device or randomly while > >the device is used? > I have never seen this error while device is successfully enumerated and > while working fine. > Mostly u get it when we connect/disconnect devices to HOST port. > Normally I use the following for testing BABBLE > - Especially when a fully loaded USB HUB getting connected to HOST port. > - Or repeatedly load and unload musb_hdrc.ko with some device connected. >=20 > If nothing of the above work you might be the lucky one to have a good > board!!!! if you have a BBB, connect host port to device port, load g_zero and run any of testusb test cases. --=20 balbi --s9fJI615cBHmzTOP Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUZm3oAAoJEIaOsuA1yqREPscP/j6H5NKh3tcHUGd0nLkOi0sp oUWaj4NQP99FVTP9SCnUX8ponUUM6+2hf8mUUEQbUeM3QjJSPdj0RLVDgQexqya3 577hxoviFY6vmJSWs+OM2wAwFYJ1siVUsUB0FoEcy/oxh/aM09o5w0MbN+E3N8rH KkOiXu0IhZPcQYZdfrxLXh7ivaAPhl3y4XC+fj2SWue2+ln2NnMUZleK4XVPhdbJ qbBrsV979wBfD0QuT1AdLUL2o8YN0lzPj5niWsOvGVKDRkofJI6E3KpgdBhMpEFI 3QByAxxzMymtPZ0cVLBWORZmhceDQ415qzFopv0XsVun3uVax6U2kpGgTcoXbasT H76v1t6PJAt6d6Xtebi04POhg+l3VNFISbeuxCtL794xId61C5V1jO7n/IxEqzn5 jHOyoK2pk9+VIdwtj3n6ArWlu43YpW7iOBp96u0cnlt1Ac1lbTZYyVcXkOum/zWf 4gN9epWL5HcaYwifFXD+6DnK/2JgeIZajRDkOXFUaECzm4fUFWQHWjeKVs3gYEvX bS593KcyycVdLbP0cfTIcEsCrYz3xU1i6Pq1ZaQdXKNPLtCBG52/7wd34VIwMJpV fNYmFZWx4YkMGBu670wYSg8epH+hBoatTR4NZz62FOfsuGpadfWNhMnfXnCWDN69 blr7XOiwyewt3oL8X7RX =XV7G -----END PGP SIGNATURE----- --s9fJI615cBHmzTOP-- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/