From patchwork Mon Feb 8 14:59:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 379123 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=-19.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, 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 55FC0C433DB for ; Mon, 8 Feb 2021 15:35:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B79064E37 for ; Mon, 8 Feb 2021 15:35:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233763AbhBHPfR (ORCPT ); Mon, 8 Feb 2021 10:35:17 -0500 Received: from mail.kernel.org ([198.145.29.99]:60982 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231784AbhBHPSV (ORCPT ); Mon, 8 Feb 2021 10:18:21 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6438464EDF; Mon, 8 Feb 2021 15:12:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1612797150; bh=qRuLJUMfiY7OZtwcty28WZv6RnVTdlnsWF+x0Y0dfDo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rBE/CucIalwir0u1BtabkI+ay15gTLLCfx0GeeRbem8XkM5CM4HZm1QPF0RdbN4xO LEqDc0RvEbi2k0SZ0tQnyDYfMy1ZJIrTU2Cdr/I3BPZgGe1N7k63TWlLyBEpUBIEkl EyIB5aIW9/Q//PC0cw9OOtdY3Wpl0/Hcb/EhMIkw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Gary Bisson Subject: [PATCH 5.10 010/120] usb: dwc3: fix clock issue during resume in OTG mode Date: Mon, 8 Feb 2021 15:59:57 +0100 Message-Id: <20210208145818.804591186@linuxfoundation.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210208145818.395353822@linuxfoundation.org> References: <20210208145818.395353822@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Gary Bisson commit 0e5a3c8284a30f4c43fd81d7285528ece74563b5 upstream. Commit fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3 core") introduced clock support and a new function named dwc3_core_init_for_resume() which enables the clock before calling dwc3_core_init() during resume as clocks get disabled during suspend. Unfortunately in this commit the DWC3_GCTL_PRTCAP_OTG case was forgotten and therefore during resume, a platform could call dwc3_core_init() without re-enabling the clocks first, preventing to resume properly. So update the resume path to call dwc3_core_init_for_resume() as it should. Fixes: fe8abf332b8f ("usb: dwc3: support clocks and resets for DWC3 core") Cc: stable@vger.kernel.org Signed-off-by: Gary Bisson Link: https://lore.kernel.org/r/20210125161934.527820-1-gary.bisson@boundarydevices.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1758,7 +1758,7 @@ static int dwc3_resume_common(struct dwc if (PMSG_IS_AUTO(msg)) break; - ret = dwc3_core_init(dwc); + ret = dwc3_core_init_for_resume(dwc); if (ret) return ret;