From patchwork Mon Nov 1 07:53:44 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sandeep Maheswaram X-Patchwork-Id: 12596013 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 61932C433F5 for ; Mon, 1 Nov 2021 07:54:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 49D9660EB4 for ; Mon, 1 Nov 2021 07:54:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231613AbhKAH46 (ORCPT ); Mon, 1 Nov 2021 03:56:58 -0400 Received: from alexa-out-sd-02.qualcomm.com ([199.106.114.39]:49623 "EHLO alexa-out-sd-02.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231402AbhKAH4x (ORCPT ); Mon, 1 Nov 2021 03:56:53 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1635753261; x=1667289261; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=WqegnewrNuQ3nBCJakumAYPktDzd/O0Hg//x5CeiZyI=; b=FEh31ZYDPvdL8YPS7jzZ8Q7ZHUd5nrQE9INTAnt+3Dm0Wue8hQp7waSp FeNdsRWvoBmCEvIKHa0qJNCYtNbo410XEJGhD6E4XK9y1Wry5UKE8rP/d O6x7e9VF7WBR5dpPuAdNw4tM2Ta6Qdl+0jOK1eC5MJx/RUg8KkN7gtajI 4=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-02.qualcomm.com with ESMTP; 01 Nov 2021 00:54:21 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg-SD-alpha.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Nov 2021 00:54:20 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.7; Mon, 1 Nov 2021 00:54:20 -0700 Received: from c-sanm-linux.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.7; Mon, 1 Nov 2021 00:54:16 -0700 From: Sandeep Maheswaram To: Andy Gross , Bjorn Andersson , Greg Kroah-Hartman , Felipe Balbi , Stephen Boyd , Doug Anderson , "Matthias Kaehlcke" , Mathias Nyman CC: , , , , , Sandeep Maheswaram Subject: [PATCH v9 5/5] usb: dwc3: qcom: Keep power domain on to support wakeup Date: Mon, 1 Nov 2021 13:23:44 +0530 Message-ID: <1635753224-23975-6-git-send-email-quic_c_sanm@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1635753224-23975-1-git-send-email-quic_c_sanm@quicinc.com> References: <1635753224-23975-1-git-send-email-quic_c_sanm@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org If wakeup capable devices are connected to the controller (directly or through hubs) at suspend time keep the power domain on in order to support wakeup from these devices. Signed-off-by: Sandeep Maheswaram --- drivers/usb/dwc3/dwc3-qcom.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 356f4f8..23bf2c1 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -340,10 +341,15 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) { u32 val; int i, ret; + struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); + struct generic_pm_domain *genpd = pd_to_genpd(qcom->dev->pm_domain); if (qcom->is_suspended) return 0; + if (device_may_wakeup(&dwc->xhci->dev) && dwc->xhci) + genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP; + val = readl(qcom->qscratch_base + PWR_EVNT_IRQ_STAT_REG); if (!(val & PWR_EVNT_LPM_IN_L2_MASK)) dev_err(qcom->dev, "HS-PHY not in L2\n"); @@ -367,10 +373,15 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom) { int ret; int i; + struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3); + struct generic_pm_domain *genpd = pd_to_genpd(qcom->dev->pm_domain); if (!qcom->is_suspended) return 0; + if (dwc->xhci) + genpd->flags &= ~GENPD_FLAG_ACTIVE_WAKEUP; + if (device_may_wakeup(qcom->dev)) dwc3_qcom_disable_interrupts(qcom);