From mboxrd@z Thu Jan 1 00:00:00 1970 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 360CBC6FD1F for ; Sat, 25 Mar 2023 16:52:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230405AbjCYQwa (ORCPT ); Sat, 25 Mar 2023 12:52:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41104 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229926AbjCYQw3 (ORCPT ); Sat, 25 Mar 2023 12:52:29 -0400 Received: from mail-pj1-x1031.google.com (mail-pj1-x1031.google.com [IPv6:2607:f8b0:4864:20::1031]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A9F75FC1 for ; Sat, 25 Mar 2023 09:52:28 -0700 (PDT) Received: by mail-pj1-x1031.google.com with SMTP id mp3-20020a17090b190300b0023fcc8ce113so7813022pjb.4 for ; Sat, 25 Mar 2023 09:52:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1679763148; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=eO2MudwSzM7w2aBKoq+3lTQiN9qd5TRShVeIYuReNyw=; b=iQix4vg9UCkITzy7QW+CiY9KBjUno8pGXvfX3Sx/pmuEW9VSJTXA4XHgfxuJDkvkjZ J9387k3spmWwAcZVbBU6QdT+dG3g/ot4Yy6ZnWwT3s0ndUsx2rB4XLxqN6zX3fh+62X7 BzaI0SCMjhYdw+bf8HqMAYOto9oKkoekFXSKtQiRRmV9apO/gzGo1vdMiGKEMr/3bVeQ bEvz6K05j7D8+k6tiFJVNIdt0r9c27cUCrhMt3hlCc0PEtz4WoI8bKcn9TlcvU367uB4 G/OrnyIUmXtuEnG2koemrqmOt0NXGOdoBBSJhnNCoXziDEQQlP7CGFxVoYBEHxqcqD6a fOzw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; t=1679763148; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=eO2MudwSzM7w2aBKoq+3lTQiN9qd5TRShVeIYuReNyw=; b=nMxwL0J0EfzNN9RTBd+qq31EoTo3nosCGTa/3d/nGTUaVzIpBXfzKFxRNzCPOMRCtG MTDxxSiK8doWUXHusvpfvPE2AjXaZjIK9ch5ve8RzrcYifpn1b7gk2RtWwtXRecVFxii CIts2sPtGfRGpHuxSdORRFD5ae5UnVAKIFD4nlBhnsBAQxmpawjyDSKRs63F25Yl7dcB rcPFA0VBoQalESkn4ncZZmiMlotaqnfwi4RlBSEoGwdQxSURr55SJplCWnNyBSR8fDeC 1b0zZj6O9mHotsv4XikpSnYCyKCSn5rUu71yGR8mE98lBPCwC4QCjHaGK7StFfSFo6iE 7OAA== X-Gm-Message-State: AAQBX9fM5TzHpQfGVDNSuq+6xDyBSvXbsKE6IZAUMjVKVeys5w7E2Ye3 KuKBUF/jNVC7bT8dW9LhSFFG X-Google-Smtp-Source: AKy350bsd+xiNmrmOMPpqAJcJJZT0iPvndikcX9YpRtxA+bDBgrkMvmsffN3wjEfM/YxaHbXYhWHiw== X-Received: by 2002:a17:903:2311:b0:1a1:b656:2149 with SMTP id d17-20020a170903231100b001a1b6562149mr7515724plh.50.1679763147684; Sat, 25 Mar 2023 09:52:27 -0700 (PDT) Received: from localhost.localdomain ([117.217.184.99]) by smtp.gmail.com with ESMTPSA id p5-20020a1709026b8500b001a1aeb3a7a9sm14889787plk.137.2023.03.25.09.52.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 25 Mar 2023 09:52:27 -0700 (PDT) From: Manivannan Sadhasivam To: andersson@kernel.org, Thinh.Nguyen@synopsys.com, gregkh@linuxfoundation.org, mathias.nyman@intel.com Cc: konrad.dybcio@linaro.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-msm@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Manivannan Sadhasivam Subject: [PATCH 0/5] usb: dwc3: qcom: Allow runtime PM Date: Sat, 25 Mar 2023 22:22:12 +0530 Message-Id: <20230325165217.31069-1-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi, This series allows the dwc3-qcom driver to do runtime PM itself without userspace intervention. Still, userspace is required to enable runtime PM for dwc3 glue and xhci drivers as we cannot enable runtime PM for them. But this series avoids one more additional step. While enabling runtime PM, I noticed that the xhci driver suspends before catching the xhci interrupts during resume. This ended up deferring the device enumeration for some time. So I included a patch adding autosuspend delay of 200ms to the xhci driver. With this delay, usb enumeration happens properly. This series has been tested on SC8280XP-CRD and RB5 devices. Thanks, Mani Manivannan Sadhasivam (5): arm64: dts: qcom: sc8280xp: Add missing dwc3 quirks xhci: host: Use 200ms autosuspend delay for runtime suspend usb: dwc3: qcom: Fix null ptr access during runtime_suspend() usb: dwc3: qcom: Clear pending interrupt before enabling wake interrupt usb: dwc3: qcom: Allow runtime PM arch/arm64/boot/dts/qcom/sc8280xp.dtsi | 14 ++++++++++++++ drivers/usb/dwc3/dwc3-qcom.c | 13 +++++++++---- drivers/usb/host/xhci-plat.c | 2 ++ 3 files changed, 25 insertions(+), 4 deletions(-) -- 2.25.1