From patchwork Fri Jun 2 11:47:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 13265148 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com 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 F3649C7EE29 for ; Fri, 2 Jun 2023 11:49:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234978AbjFBLtV (ORCPT ); Fri, 2 Jun 2023 07:49:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37266 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235014AbjFBLtN (ORCPT ); Fri, 2 Jun 2023 07:49:13 -0400 Received: from mail-ej1-x62c.google.com (mail-ej1-x62c.google.com [IPv6:2a00:1450:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 05AC510D5 for ; Fri, 2 Jun 2023 04:48:42 -0700 (PDT) Received: by mail-ej1-x62c.google.com with SMTP id a640c23a62f3a-9745d99cfccso128575166b.1 for ; Fri, 02 Jun 2023 04:48:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1685706521; x=1688298521; 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=zjhhtMDiVxTVno+SPO1SHJkYSl5NdViRdJrBhSZBSq0=; b=D1n/ahAjHoJwmX1Pd+G0DOzH8PHh8fuZj+RlDGayhTmxtwTHa90OhfHxAfNOWrwmFA YBmrShea8Wc5NueobvdT5Gd3H3LoOTy3MPZf+tcOQ/zqfw/cRcbUv0OFKGzS1VCqTAPY osO6Sqj4WwFOHNhf4mTDuGNdUlStL43Ta0c6lel1IOoBuVjM5NOmjqeTSgWALErCEAu6 mnkoyuZSYcRsEKhg/cjW1twH/CJze1HlNAo96GHbtQvUjO1K8RIWv7UfAnIiqXbOZbq9 ETqSFttf24CcT+GqrmYPtc8CPv0SXnjhQ7kCdewQqSJ2QHozViMBIrE0hkjuFD7N+06M 7s6g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1685706521; x=1688298521; 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=zjhhtMDiVxTVno+SPO1SHJkYSl5NdViRdJrBhSZBSq0=; b=dRvlYBTUqGq0EJmd5vgZWWc/zliUW3JKnnspba4OUp0x6/AOF3sS0fBsCvL5nVvj4Z jbwzDPRvuqCByxgiM4rgAiZ1+GMFswC9bDWlGXTcqk1JEeDZyvRxrUlfSD5kgBGQb5sH DwcZWe5/nffGSelKhzR6Za1f1Z3X7Et6/fKke5BE5T96KMAT3HKVGOcYgFQMqo1pkDJb xfGSGUvw/p/HM9ZN1Baf/YJP/A07+SUkmXDxEfHbDbEfDEDxW4ldn6NX4lPqMIkofjZS Tp5iRR4iBlMEvalVnrKc4nZUehJ0JCk48jya5L0IZ/tkUEYytrDpNgOHkb7UqCiLFIKx mjsg== X-Gm-Message-State: AC+VfDw0MbICGcBWOPTlHm0SQkA2V1J4fCGk1BpJLmuA3Bh7Eia1D0tz Wxp8iaJoAVWr4I3RcaKBpxSQ X-Google-Smtp-Source: ACHHUZ4FH+Poh79HPfqj3RwtHxqHDNDnhHxHGHZkuRDhzM9YGJ0QeJyjLnAVcUfFGHl2vbdOaKfpuw== X-Received: by 2002:a17:907:748:b0:94e:116:8581 with SMTP id xc8-20020a170907074800b0094e01168581mr11513927ejb.5.1685706521632; Fri, 02 Jun 2023 04:48:41 -0700 (PDT) Received: from localhost.localdomain ([117.217.186.79]) by smtp.gmail.com with ESMTPSA id qu25-20020a170907111900b00974530bb44dsm658924ejb.183.2023.06.02.04.48.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 02 Jun 2023 04:48:41 -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, dlemoal@kernel.org, Manivannan Sadhasivam Subject: [PATCH v6 6/9] PCI: qcom-ep: Add support for Link down notification Date: Fri, 2 Jun 2023 17:17:53 +0530 Message-Id: <20230602114756.36586-7-manivannan.sadhasivam@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230602114756.36586-1-manivannan.sadhasivam@linaro.org> References: <20230602114756.36586-1-manivannan.sadhasivam@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pci@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 Reviewed-by: Damien Le Moal 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;