From patchwork Mon Mar 15 13:54:24 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 401197 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=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 7BE2FC433E9 for ; Mon, 15 Mar 2021 14:09:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A9D964DE8 for ; Mon, 15 Mar 2021 14:09:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234779AbhCOOI2 (ORCPT ); Mon, 15 Mar 2021 10:08:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:48644 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233538AbhCOOB6 (ORCPT ); Mon, 15 Mar 2021 10:01:58 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3F30964E4D; Mon, 15 Mar 2021 14:01:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816918; bh=18j29ErcnQ1AlvxdDfNzMhlNX3P38sse4hPA7HQqMC4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nAfxHc48sOnAX065nV+/KCPSU5V2z+dH2eM0inP1P3v7I8m51e2upWwou67X2rX1n r2Yt7hhft3GB89/N4GQ6wzsF3j+0+kRpve4JolQ6p4Abzpwl9xbprjSMvZBBLNNSiQ 7D4eCIewvZvXrjVf6NpqSrD86gcP3TxtSQ1VQybE= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bjorn Andersson , Matthias Kaehlcke Subject: [PATCH 5.11 201/306] usb: dwc3: qcom: Honor wakeup enabled/disabled state Date: Mon, 15 Mar 2021 14:54:24 +0100 Message-Id: <20210315135514.428967658@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135507.611436477@linuxfoundation.org> References: <20210315135507.611436477@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@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 @@ -358,8 +358,10 @@ static int dwc3_qcom_suspend(struct dwc3 if (ret) dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret); + if (device_may_wakeup(qcom->dev)) + dwc3_qcom_enable_interrupts(qcom); + qcom->is_suspended = true; - dwc3_qcom_enable_interrupts(qcom); return 0; } @@ -372,7 +374,8 @@ 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]);