From patchwork Tue May 24 10:13:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Krishna Kurapati X-Patchwork-Id: 12859943 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E9F2DC433F5 for ; Tue, 24 May 2022 10:14:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236105AbiEXKOs (ORCPT ); Tue, 24 May 2022 06:14:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57150 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236028AbiEXKOo (ORCPT ); Tue, 24 May 2022 06:14:44 -0400 Received: from alexa-out-sd-01.qualcomm.com (alexa-out-sd-01.qualcomm.com [199.106.114.38]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5E97F8FF8F; Tue, 24 May 2022 03:14:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1653387274; x=1684923274; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=PmbHo06Q5fcJQJFwY2p9A69YIi7HcSyDy0o5lGy43bY=; b=yT9eg27JtfyUylb3d27RLp0qXupR0MG6ibY2rVVkzkY1iWi8PWG0vDPg HLu4rUR8epPKZJJ8VtRGTY1lxmpHBi+mcH581cJ/dxvkGAPZPchgxf7q4 Wd+qGrAQ2hOKx/SY6naXj4P06On3glOkyodJrGZwdpjHm+GvRARLT7XZG I=; Received: from unknown (HELO ironmsg-SD-alpha.qualcomm.com) ([10.53.140.30]) by alexa-out-sd-01.qualcomm.com with ESMTP; 24 May 2022 03:14:33 -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; 24 May 2022 03:14:33 -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 15.2.986.22; Tue, 24 May 2022 03:14:33 -0700 Received: from hu-kriskura-hyd.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 15.2.986.22; Tue, 24 May 2022 03:14:26 -0700 From: Krishna Kurapati To: Krzysztof Kozlowski , Rob Herring , Andy Gross , Bjorn Andersson , Greg Kroah-Hartman , Felipe Balbi , Stephen Boyd , Doug Anderson , "Matthias Kaehlcke" , Mathias Nyman CC: , , , , , , , , Sandeep Maheswaram , Krishna Kurapati Subject: [PATCH v17 5/5] usb: dwc3: qcom: Keep power domain on to retain controller status Date: Tue, 24 May 2022 15:43:48 +0530 Message-ID: <1653387228-28110-6-git-send-email-quic_kriskura@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1653387228-28110-1-git-send-email-quic_kriskura@quicinc.com> References: <1653387228-28110-1-git-send-email-quic_kriskura@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 From: Sandeep Maheswaram If dwc3 is wakeup capable, keep the power domain always ON so that wakeup from system suspend can be supported. Otherwise, keep the power domain ON only during runtime suspend to support wakeup from runtime suspend. Signed-off-by: Sandeep Maheswaram Signed-off-by: Krishna Kurapati --- drivers/usb/dwc3/dwc3-qcom.c | 24 +++++++++++++++++------- 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 5d5db62..7bffb31 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 @@ -760,12 +761,13 @@ dwc3_qcom_create_urs_usb_platdev(struct device *dev) static int dwc3_qcom_probe(struct platform_device *pdev) { - struct device_node *np = pdev->dev.of_node; - struct device *dev = &pdev->dev; - struct dwc3_qcom *qcom; - struct resource *res, *parent_res = NULL; - int ret, i; - bool ignore_pipe_clk; + struct device_node *np = pdev->dev.of_node; + struct device *dev = &pdev->dev; + struct dwc3_qcom *qcom; + struct resource *res, *parent_res = NULL; + int ret, i; + bool ignore_pipe_clk; + struct generic_pm_domain *genpd; qcom = devm_kzalloc(&pdev->dev, sizeof(*qcom), GFP_KERNEL); if (!qcom) @@ -774,6 +776,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) platform_set_drvdata(pdev, qcom); qcom->dev = &pdev->dev; + genpd = pd_to_genpd(qcom->dev->pm_domain); + if (has_acpi_companion(dev)) { qcom->acpi_pdata = acpi_device_get_match_data(dev); if (!qcom->acpi_pdata) { @@ -881,7 +885,13 @@ static int dwc3_qcom_probe(struct platform_device *pdev) if (ret) goto interconnect_exit; - device_init_wakeup(&pdev->dev, 1); + if (device_can_wakeup(&qcom->dwc3->dev)) { + genpd->flags |= GENPD_FLAG_ALWAYS_ON; + device_init_wakeup(&pdev->dev, true); + } else { + genpd->flags |= GENPD_FLAG_RPM_ALWAYS_ON; + } + qcom->is_suspended = false; pm_runtime_set_active(dev); pm_runtime_enable(dev);