From patchwork Thu Apr 7 08:45:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sandeep Maheswaram X-Patchwork-Id: 561468 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 0FD9CC43217 for ; Thu, 7 Apr 2022 08:46:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241304AbiDGIsI (ORCPT ); Thu, 7 Apr 2022 04:48:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45666 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243330AbiDGIrq (ORCPT ); Thu, 7 Apr 2022 04:47:46 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D9585194787; Thu, 7 Apr 2022 01:45:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1649321147; x=1680857147; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=ve2qRgYReSbfCaf4GJfgFbpxlrNt8Qjh7vSqdkLzY8A=; b=uaL+Z4RKusRxY68uXTxkBocKIUBdt6KHOyZW5F7T2FK9hhEp6HTp3vaP P4IWycj+277KwpYBmigCkNMfpPqfLPClu3o+oew4bojMYNpsihSrUVo3s tpM2jP+fBtvNpbRNze0BssBCeU5ZxgzLlP5cbcH5UA+AuX7qGiCzERkJn A=; Received: from ironmsg08-lv.qualcomm.com ([10.47.202.152]) by alexa-out.qualcomm.com with ESMTP; 07 Apr 2022 01:45:46 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Apr 2022 01:45:46 -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; Thu, 7 Apr 2022 01:45:46 -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 15.2.986.22; Thu, 7 Apr 2022 01:45:40 -0700 From: Sandeep Maheswaram To: Rob Herring , Andy Gross , "Bjorn Andersson" , Greg Kroah-Hartman , Felipe Balbi , Stephen Boyd , Doug Anderson , "Matthias Kaehlcke" , Mathias Nyman , Krzysztof Kozlowski CC: , , , , , , , , Sandeep Maheswaram Subject: [PATCH v12 4/6] usb: dwc3: qcom: Keep power domain on to retain controller status Date: Thu, 7 Apr 2022 14:15:02 +0530 Message-ID: <1649321104-31322-5-git-send-email-quic_c_sanm@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1649321104-31322-1-git-send-email-quic_c_sanm@quicinc.com> References: <1649321104-31322-1-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-usb@vger.kernel.org Keep the power domain on in order to retain controller status and to support wakeup from devices. Signed-off-by: Sandeep Maheswaram --- drivers/usb/dwc3/dwc3-qcom.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 9804a19..35087cf 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 @@ -724,6 +725,7 @@ static int dwc3_qcom_probe(struct platform_device *pdev) 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) @@ -732,6 +734,8 @@ 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) { @@ -839,6 +843,8 @@ static int dwc3_qcom_probe(struct platform_device *pdev) if (ret) goto interconnect_exit; + genpd->flags |= GENPD_FLAG_ALWAYS_ON; + device_init_wakeup(&pdev->dev, 1); qcom->is_suspended = false; pm_runtime_set_active(dev);