From patchwork Mon Jun 28 12:08:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sandeep Maheswaram X-Patchwork-Id: 12347827 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 B4683C49EB7 for ; Mon, 28 Jun 2021 12:09:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A3A4B61477 for ; Mon, 28 Jun 2021 12:09:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232970AbhF1ML1 (ORCPT ); Mon, 28 Jun 2021 08:11:27 -0400 Received: from alexa-out.qualcomm.com ([129.46.98.28]:6161 "EHLO alexa-out.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232946AbhF1ML0 (ORCPT ); Mon, 28 Jun 2021 08:11:26 -0400 Received: from ironmsg07-lv.qualcomm.com ([10.47.202.151]) by alexa-out.qualcomm.com with ESMTP; 28 Jun 2021 05:09:01 -0700 X-QCInternal: smtphost Received: from ironmsg02-blr.qualcomm.com ([10.86.208.131]) by ironmsg07-lv.qualcomm.com with ESMTP/TLS/AES256-SHA; 28 Jun 2021 05:08:59 -0700 X-QCInternal: smtphost Received: from c-sanm-linux.qualcomm.com ([10.206.25.31]) by ironmsg02-blr.qualcomm.com with ESMTP; 28 Jun 2021 17:38:32 +0530 Received: by c-sanm-linux.qualcomm.com (Postfix, from userid 2343233) id 7B60F3A48; Mon, 28 Jun 2021 17:38:31 +0530 (IST) From: Sandeep Maheswaram To: Andy Gross , Bjorn Andersson , Greg Kroah-Hartman , Felipe Balbi , Stephen Boyd , Doug Anderson , Matthias Kaehlcke , Mathias Nyman Cc: linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Pratham Pratap , Sandeep Maheswaram Subject: [PATCH v8 6/6] usb: dwc3: qcom: Keep power domain on to support wakeup Date: Mon, 28 Jun 2021 17:38:17 +0530 Message-Id: <1624882097-23265-7-git-send-email-sanm@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1624882097-23265-1-git-send-email-sanm@codeaurora.org> References: <1624882097-23265-1-git-send-email-sanm@codeaurora.org> 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 --- Checking phy_power_off flag instead of usb_wakeup_enabled_descendants to keep gdsc active. drivers/usb/dwc3/dwc3-qcom.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 82125bc..ba31aa3 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 @@ -355,9 +356,15 @@ 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 (!dwc->phy_power_off && 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"); @@ -382,9 +389,15 @@ 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);