From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:43968 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751112AbbLQXBx (ORCPT ); Thu, 17 Dec 2015 18:01:53 -0500 Subject: Patch "usb: gadget: pxa27x: fix suspend callback" has been added to the 4.3-stable tree To: balbi@ti.com, gregkh@linuxfoundation.org, robert.jarzmik@free.fr Cc: , From: Date: Thu, 17 Dec 2015 15:01:52 -0800 Message-ID: <145039331252167@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled usb: gadget: pxa27x: fix suspend callback to the 4.3-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-gadget-pxa27x-fix-suspend-callback.patch and it can be found in the queue-4.3 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From 391e6dcb37857d5659b53def2f41e2f56850d33c Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 18 Nov 2015 17:06:00 -0600 Subject: usb: gadget: pxa27x: fix suspend callback From: Felipe Balbi commit 391e6dcb37857d5659b53def2f41e2f56850d33c upstream. pxa27x disconnects pullups on suspend but doesn't notify the gadget driver about it, so gadget driver can't disable the endpoints it was using. This causes problems on resume because gadget core will think endpoints are still enabled and just ignore the following usb_ep_enable(). Fix this problem by calling gadget_driver->disconnect(). Tested-by: Robert Jarzmik Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/udc/pxa27x_udc.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/gadget/udc/pxa27x_udc.c +++ b/drivers/usb/gadget/udc/pxa27x_udc.c @@ -2536,6 +2536,9 @@ static int pxa_udc_suspend(struct platfo udc->pullup_resume = udc->pullup_on; dplus_pullup(udc, 0); + if (udc->driver) + udc->driver->disconnect(&udc->gadget); + return 0; } Patches currently in stable-queue which might be from balbi@ti.com are queue-4.3/usb-musb-usb_ti_cppi41_dma-requires-dmaengine-support.patch queue-4.3/usb-gadget-pxa27x-fix-suspend-callback.patch