From mboxrd@z Thu Jan 1 00:00:00 1970 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,URIBL_BLOCKED,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 38AA6C3524D for ; Mon, 3 Feb 2020 16:28:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0398B2080C for ; Mon, 3 Feb 2020 16:28:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747300; bh=dycy59ne75f8HG7/Kr0a82MwUFcj3A6i2F21RQKK1wM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=U0Jc6ub9pTJG9vyoSdhF6eBGbEgr4GcHTFHU3dF0aEzTYCrs1vrqkY1wZ/BMRgqPF zDmyExPG4ddRfh7CEbw+J8lwNOxaZRZj9LacF3PhtX9dan03iStB55pqsERFbbBLNb Zydvrgghl7V+AAugS1NqCG0T+HACUBxu1JoYLvFQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729562AbgBCQ2T (ORCPT ); Mon, 3 Feb 2020 11:28:19 -0500 Received: from mail.kernel.org ([198.145.29.99]:39716 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729542AbgBCQ2O (ORCPT ); Mon, 3 Feb 2020 11:28:14 -0500 Received: from localhost (unknown [104.132.45.99]) (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 BB1212080C; Mon, 3 Feb 2020 16:28:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747294; bh=dycy59ne75f8HG7/Kr0a82MwUFcj3A6i2F21RQKK1wM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eYUskopjDg1aYtr+k/a2KZHi5sx9sdenSTKAEnYWjmaAamWmf88SEqU+B3VcT6SMp +wJQGFPLAwa7kdXWcVtGrAZ4Cj5psc4us5huO+jDLFWTpk0ODhC8zZY8Y5KML0cPaB vVmSFiCg1XD1wjj4b72LCvLjNzHutrMO0Bybq2NQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bin Liu , Felipe Balbi Subject: [PATCH 4.14 06/89] usb: dwc3: turn off VBUS when leaving host mode Date: Mon, 3 Feb 2020 16:18:51 +0000 Message-Id: <20200203161917.678736416@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200203161916.847439465@linuxfoundation.org> References: <20200203161916.847439465@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 @@ -1031,6 +1031,9 @@ 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)