From patchwork Thu Jun 1 15:01:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13264020 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 1123FC7EE2A for ; Thu, 1 Jun 2023 15:04:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234907AbjFAPE2 (ORCPT ); Thu, 1 Jun 2023 11:04:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42332 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233872AbjFAPEE (ORCPT ); Thu, 1 Jun 2023 11:04:04 -0400 Received: from mail-pl1-x635.google.com (mail-pl1-x635.google.com [IPv6:2607:f8b0:4864:20::635]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4681C10C8 for ; Thu, 1 Jun 2023 08:03:02 -0700 (PDT) Received: by mail-pl1-x635.google.com with SMTP id d9443c01a7336-1b02497f4cfso4712925ad.3 for ; Thu, 01 Jun 2023 08:03:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685631700; x=1688223700; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=sY5A5rnt2NOAJyTtKsWtQc3JsasD9KssrsfBlXW2O/Q=; b=qkwtr+3caPcrNzUHlEnueJTGwkGmT/ICcH4ZDX2YRSvbY6IvMtnGH7MXWH/eQMiwlF 04TqeBB0E7MRDK8uSqHwM422fPAirj+Mr2LQQ7eFvyJPDPXLLJdGCXtRl1IEha1LQfAI cETUcUIr45csA2J0YWw7Wb32LqW3Zupfv/ogbzC62VTlAZTp/WDl9IN1xe4u+lHUp/9c DC1R74kTns/W82XGI6oXFKPHI+BxekP3MEg9TFtwDE/Gjtk2L37aPvpB5SWR1xPCEH8R Pj3VfaB5GNSqXu1s/AiWLPWO+xRwfPF5b5q6+GAe467W0hMreMEl/78l534bXC8KKaJT pl+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685631700; x=1688223700; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=sY5A5rnt2NOAJyTtKsWtQc3JsasD9KssrsfBlXW2O/Q=; b=EqI68KmNEJxTNjn3aAbISsyI5T5aDVv1vfFTPsMIBs1Q2DGzJLLwfwhMuIBieh+NRh DtXMV5MEDUAJn17mnLcJ10k3kKuWdp+iprH+P+IZrE0S0ZMfYr1NqAUeVrJGQbBvRAa2 rL0bVLqNh8L6U1h6jUqIU5SXksXf12QNoiA3dPXoaMYl4p3CM3M80bem+8Wz0p2ZX6kU mXwDmvtbcoFdGmFcWURdH43dYFjlPW6S2Kyl7Ej97sHLWQK4c4V3uZ07qmy1SCqUwzTC cO8mqvD/14m26XE3CENmDutrLaTO1n0Pwu1myaBbhdBhdGg43k7NByF9KIDiYCRGH6TK VAhg== X-Gm-Message-State: AC+VfDx+F7xSyhVf8ierQB92o9G5jiE8+0QeBfPsj4WmIFpqJyKJIMwD dlKlsu9dcI1fuVcVHvLGu9tD X-Google-Smtp-Source: ACHHUZ5QIApGEkASZ+/Sra/tPB5WJ3LGBnkl1wIBNCXuESJP9laCAO2TyzNYbYU4aiK7jZ1V2wBCzg== X-Received: by 2002:a17:903:2643:b0:1af:e63f:5bb1 with SMTP id je3-20020a170903264300b001afe63f5bb1mr5811966plb.7.1685631699668; Thu, 01 Jun 2023 08:01:39 -0700 (PDT) Received: from localhost.localdomain ([117.217.186.123]) by smtp.gmail.com with ESMTPSA id q7-20020a170902dac700b001b0499bee11sm3595480plx.240.2023.06.01.08.01.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 Jun 2023 08:01:39 -0700 (PDT) From: Manivannan Sadhasivam To: lpieralisi@kernel.org, kw@linux.com Cc: kishon@kernel.org, bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Manivannan Sadhasivam Subject: [RESEND PATCH v5 6/9] PCI: qcom-ep: Add support for Link down notification Date: Thu, 1 Jun 2023 20:31:00 +0530 Message-Id: <20230601150103.12755-7-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230601150103.12755-1-manivannan.sadhasivam@linaro.org> References: <20230601150103.12755-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Add support to pass Link down notification to Endpoint function driver so that the LINK_DOWN event can be processed by the function. Reviewed-by: Kishon Vijay Abraham I Signed-off-by: Manivannan Sadhasivam --- drivers/pci/controller/dwc/pcie-qcom-ep.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/controller/dwc/pcie-qcom-ep.c b/drivers/pci/controller/dwc/pcie-qcom-ep.c index 19b32839ea26..4ce01ff7527c 100644 --- a/drivers/pci/controller/dwc/pcie-qcom-ep.c +++ b/drivers/pci/controller/dwc/pcie-qcom-ep.c @@ -569,6 +569,7 @@ static irqreturn_t qcom_pcie_ep_global_irq_thread(int irq, void *data) if (FIELD_GET(PARF_INT_ALL_LINK_DOWN, status)) { dev_dbg(dev, "Received Linkdown event\n"); pcie_ep->link_status = QCOM_PCIE_EP_LINK_DOWN; + pci_epc_linkdown(pci->ep.epc); } else if (FIELD_GET(PARF_INT_ALL_BME, status)) { dev_dbg(dev, "Received BME event. Link is enabled!\n"); pcie_ep->link_status = QCOM_PCIE_EP_LINK_ENABLED;