From patchwork Wed Jul 8 10:37:08 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Quadros X-Patchwork-Id: 6744521 Return-Path: X-Original-To: patchwork-linux-omap@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A74D09F2F0 for ; Wed, 8 Jul 2015 10:37:25 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C69A4206FE for ; Wed, 8 Jul 2015 10:37:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 72F4A206F0 for ; Wed, 8 Jul 2015 10:37:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934829AbbGHKhU (ORCPT ); Wed, 8 Jul 2015 06:37:20 -0400 Received: from bear.ext.ti.com ([192.94.94.41]:37887 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932762AbbGHKhP (ORCPT ); Wed, 8 Jul 2015 06:37:15 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id t68AbCRD014141; Wed, 8 Jul 2015 05:37:12 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id t68AbCv6011463; Wed, 8 Jul 2015 05:37:12 -0500 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.224.2; Wed, 8 Jul 2015 05:36:58 -0500 Received: from rockdesk.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id t68AbAXV009091; Wed, 8 Jul 2015 05:37:10 -0500 From: Roger Quadros To: CC: , , , , , Roger Quadros Subject: [PATCH v3 7/9] usb: dwc3: gadget: Fix suspend/resume during dual-role mode Date: Wed, 8 Jul 2015 13:37:08 +0300 Message-ID: <1436351828-28687-1-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1436351524-28385-1-git-send-email-rogerq@ti.com> References: <1436351524-28385-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Gdget controller might not be always active during suspend/ resume when we are operating in dual-role/otg mode. Check if we're active and only if we are then perform necessary actions during suspend/resume. Signed-off-by: Roger Quadros --- drivers/usb/dwc3/gadget.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index cf6b945..3cc8c18 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2779,6 +2779,9 @@ void dwc3_gadget_exit(struct dwc3 *dwc) int dwc3_gadget_suspend(struct dwc3 *dwc) { + if (!dwc->gadget_driver) + return 0; + if (dwc->pullups_connected) { dwc3_gadget_disable_irq(dwc); dwc3_gadget_run_stop(dwc, true, true); @@ -2797,6 +2800,9 @@ int dwc3_gadget_resume(struct dwc3 *dwc) struct dwc3_ep *dep; int ret; + if (!dwc->gadget_driver) + return 0; + /* Start with SuperSpeed Default */ dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);