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=-19.0 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, USER_AGENT_GIT autolearn=unavailable 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 15CA2C4332B for ; Mon, 15 Mar 2021 14:24:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DA0D664EEB for ; Mon, 15 Mar 2021 14:24:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238356AbhCOOXG (ORCPT ); Mon, 15 Mar 2021 10:23:06 -0400 Received: from mail.kernel.org ([198.145.29.99]:37632 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231977AbhCOOAP (ORCPT ); Mon, 15 Mar 2021 10:00:15 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 86A8264FA8; Mon, 15 Mar 2021 13:59:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816785; bh=W/t6Gj0I8407eSXPj5r784/zkUZ2XD3MUlJB77bxuhI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ix3OM/YTE0zTXgVlM/AiZEtdwL+NuBQ7AINg3lM8EId7hc/MCbeK1F3B4uSl84gG5 pKcDOeSuunjDzA+4F3FOPXtYQSrYj3FGoI5eSecx/lHDFuIvSm8CDpIcsTdkhiWtBu uhb5FRIueP5giDUXPSZjhk3Y360PtRTxrQl49l2Q= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bjorn Andersson , Matthias Kaehlcke Subject: [PATCH 5.4 108/168] usb: dwc3: qcom: Honor wakeup enabled/disabled state Date: Mon, 15 Mar 2021 14:55:40 +0100 Message-Id: <20210315135553.909866543@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135550.333963635@linuxfoundation.org> References: <20210315135550.333963635@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Greg Kroah-Hartman From: Matthias Kaehlcke commit 2664deb0930643149d61cddbb66ada527ae180bd upstream. The dwc3-qcom currently enables wakeup interrupts unconditionally when suspending, however this should not be done when wakeup is disabled (e.g. through the sysfs attribute power/wakeup). Only enable wakeup interrupts when device_may_wakeup() returns true. Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver") Reviewed-by: Bjorn Andersson Signed-off-by: Matthias Kaehlcke Cc: stable Link: https://lore.kernel.org/r/20210302103659.v2.1.I44954d9e1169f2cf5c44e6454d357c75ddfa99a2@changeid Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-qcom.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -251,8 +251,10 @@ static int dwc3_qcom_suspend(struct dwc3 for (i = qcom->num_clocks - 1; i >= 0; i--) clk_disable_unprepare(qcom->clks[i]); + if (device_may_wakeup(qcom->dev)) + dwc3_qcom_enable_interrupts(qcom); + qcom->is_suspended = true; - dwc3_qcom_enable_interrupts(qcom); return 0; } @@ -265,7 +267,8 @@ static int dwc3_qcom_resume(struct dwc3_ if (!qcom->is_suspended) return 0; - dwc3_qcom_disable_interrupts(qcom); + if (device_may_wakeup(qcom->dev)) + dwc3_qcom_disable_interrupts(qcom); for (i = 0; i < qcom->num_clocks; i++) { ret = clk_prepare_enable(qcom->clks[i]);