From patchwork Fri Aug 26 18:19:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 12956404 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 D38C9ECAAA3 for ; Fri, 26 Aug 2022 18:20:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344929AbiHZSUS (ORCPT ); Fri, 26 Aug 2022 14:20:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56364 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344995AbiHZSUK (ORCPT ); Fri, 26 Aug 2022 14:20:10 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A68356B85 for ; Fri, 26 Aug 2022 11:20:02 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id c2so2256511plo.3 for ; Fri, 26 Aug 2022 11:20:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc; bh=FMZK2zbDyl55wonvxZo05JFqyO2/6cJpEjPTCWuWIWI=; b=s1bHMc0t+EgY3JRHamFbe3O2W7KIQwgHUw9wruSHUsE7dwRznHeez60mroak5+DItd uCAE7MOSTJuyW8nVbq9I564pWBEyIa41jJusbUayQUWoDGvAWuGogzVomkMxZ1QjMIAR EeLE0LY0cVnfU2IJgXIewZJBTcYjZRvH1R2Rs/jQGZqkDePADEXQu7P1j0zoag7P1sXg Ejpna3IBKuDXXE/a3tEaiMlWGIHVJLOOM07REKrHUKuO8ZuApRFuBlC/Czw/IHlih6Mz qs9eVQVyNT6FcS0MnDy6vPL1emxlu/cdQKTBkdy0BfbcHodqT6B8vsoR81HQelzwjtDG kYVA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc; bh=FMZK2zbDyl55wonvxZo05JFqyO2/6cJpEjPTCWuWIWI=; b=CLCLEK49Idb2/02So9k6A4VoIxKleR8ySVU8P7aP272V+AU/kk7XsHcXBivBaeov87 8osuYaQqOald9j4slfhRZAmPL3kFlD2WYfgX0MWmwYXEPVQFG9wBNJiqbxk3Vrk96E/J ciCyOmmRuCgcGlu4tXWa62JFxuPxzVsD2fHM9NlyRciokeNpoL7Ii4z8JPOaGiFHR0vB KrvWy68hd5iOZ0XDGjlqWuHOmnCQg7/2XUUm3v3hVBy6tzGxsETTDm6qR1cewMgaMfU9 AgoHzmMHCUx5yn/AcaJGcOwZQGolESUjB+dM7363YOFHjXOnqo47b1dAK8b59mjAi8Si xBJw== X-Gm-Message-State: ACgBeo1/BDXrJRyCAFnI2CebJFkQqjh4/ZeIFGDSlnqzqIfA41UYKUx0 5/FlQH0tae8GspurjCVmFrUY X-Google-Smtp-Source: AA6agR7alkQWrE4//3h6rPpk3p0vMMc3NvIzKVWZN679umAD49dP1iV+0bBg3GO0nea//FM7CXrj5Q== X-Received: by 2002:a17:90b:1646:b0:1fb:7b7d:e7cc with SMTP id il6-20020a17090b164600b001fb7b7de7ccmr5545692pjb.79.1661538001213; Fri, 26 Aug 2022 11:20:01 -0700 (PDT) Received: from localhost.localdomain ([117.193.214.147]) by smtp.gmail.com with ESMTPSA id s5-20020a170902b18500b00173368e9dedsm1881868plr.252.2022.08.26.11.19.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Aug 2022 11:20:00 -0700 (PDT) From: Manivannan Sadhasivam To: lpieralisi@kernel.org, robh@kernel.org, andersson@kernel.org Cc: kw@linux.com, bhelgaas@google.com, linux-pci@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, konrad.dybcio@somainline.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, devicetree@vger.kernel.org, dmitry.baryshkov@linaro.org, Manivannan Sadhasivam Subject: [PATCH 05/11] PCI: qcom-ep: Disable IRQs during driver remove Date: Fri, 26 Aug 2022 23:49:17 +0530 Message-Id: <20220826181923.251564-6-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220826181923.251564-1-manivannan.sadhasivam@linaro.org> References: <20220826181923.251564-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Disable the Global and PERST IRQs during driver remove to avoid getting spurious IRQs after resource deallocation. Signed-off-by: Manivannan Sadhasivam --- drivers/pci/controller/dwc/pcie-qcom-ep.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c index 54b927adf60a..98ef36e3a94d 100644 --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c @@ -586,11 +586,11 @@ static int qcom_pcie_ep_enable_irq_resources(struct platform_device *pdev, { int irq, ret; - irq = platform_get_irq_byname(pdev, "global"); - if (irq < 0) - return irq; + pcie_ep->global_irq = platform_get_irq_byname(pdev, "global"); + if (pcie_ep->global_irq < 0) + return pcie_ep->global_irq; - ret = devm_request_threaded_irq(&pdev->dev, irq, NULL, + ret = devm_request_threaded_irq(&pdev->dev, pcie_ep->global_irq, NULL, qcom_pcie_ep_global_irq_thread, IRQF_ONESHOT, "global_irq", pcie_ep); @@ -700,6 +700,9 @@ static int qcom_pcie_ep_remove(struct platform_device *pdev) { struct qcom_pcie_ep *pcie_ep = platform_get_drvdata(pdev); + disable_irq(pcie_ep->global_irq); + disable_irq(pcie_ep->perst_irq); + if (pcie_ep->link_status == QCOM_PCIE_EP_LINK_DISABLED) return 0;