From patchwork Thu Jan 30 18:37:45 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 232384 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A9A9C35240 for ; Thu, 30 Jan 2020 18:43:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 31E9C20702 for ; Thu, 30 Jan 2020 18:43:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580409798; bh=jFhBivrGTpphe334jiWq/4dCd5DrUqPSGqxcA63EX4c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=lRZv0kQyNvc9Q+ygkSIE893RN+0VRUaNK28fJF4RRQSyWZ/RAcR1PVB46VIo0lfnB rMJO67sx+lh21c9K3lG2/cRGSzxc46FUqfaRnQUi7sndJ+uaMUEIkMgy8GuBF4E4l9 +/sqfAhXjnDP28Jzxo4TjS/cL/PgZjQu79IZP/6E= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730572AbgA3SnR (ORCPT ); Thu, 30 Jan 2020 13:43:17 -0500 Received: from mail.kernel.org ([198.145.29.99]:51854 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730569AbgA3SnR (ORCPT ); Thu, 30 Jan 2020 13:43:17 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 334432082E; Thu, 30 Jan 2020 18:43:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580409796; bh=jFhBivrGTpphe334jiWq/4dCd5DrUqPSGqxcA63EX4c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kGUUohmZAyUcaL8m/h6lIDellqrBTW9Jgn3eSgdKulKaYfL4zRZTPUVI3ix3mvH3C 6ymPjEEz1RwB2jSlKII6ZW6iPn2FSGJigHlNixkJdLmL1e9ZK6G45mZiuGimJQLQI4 exnlVSIdy50dBCRo6oB9BAp9vqBqzXkLu5vnTOlU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bin Liu , Felipe Balbi Subject: [PATCH 5.4 009/110] usb: dwc3: turn off VBUS when leaving host mode Date: Thu, 30 Jan 2020 19:37:45 +0100 Message-Id: <20200130183615.310954609@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200130183613.810054545@linuxfoundation.org> References: <20200130183613.810054545@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Bin Liu commit 09ed259fac621634d51cd986aa8d65f035662658 upstream. VBUS should be turned off when leaving the host mode. Set GCTL_PRTCAP to device mode in teardown to de-assert DRVVBUS pin to turn off VBUS power. Fixes: 5f94adfeed97 ("usb: dwc3: core: refactor mode initialization to its own function") Cc: stable@vger.kernel.org Signed-off-by: Bin Liu Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/core.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1209,6 +1209,9 @@ static void dwc3_core_exit_mode(struct d /* do nothing */ break; } + + /* de-assert DRVVBUS for HOST and OTG mode */ + dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE); } static void dwc3_get_properties(struct dwc3 *dwc)