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 X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,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 CA42DC43142 for ; Thu, 28 Jun 2018 12:48:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8345123C66 for ; Thu, 28 Jun 2018 12:48:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8345123C66 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=hisilicon.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966096AbeF1Ms3 (ORCPT ); Thu, 28 Jun 2018 08:48:29 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:9132 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S966069AbeF1Ms0 (ORCPT ); Thu, 28 Jun 2018 08:48:26 -0400 Received: from DGGEMS414-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id 41E0A30DF2E9; Thu, 28 Jun 2018 20:48:12 +0800 (CST) Received: from vm107-55-164.huawei.com (100.107.55.164) by DGGEMS414-HUB.china.huawei.com (10.3.19.214) with Microsoft SMTP Server id 14.3.382.0; Thu, 28 Jun 2018 20:48:05 +0800 From: Xiaowei Song To: , , , , , CC: , Subject: [PATCH v5 1/1] PCI: kirin: Add MSI support Date: Thu, 28 Jun 2018 20:48:03 +0800 Message-ID: <20180628124803.110315-2-songxiaowei@hisilicon.com> X-Mailer: git-send-email 2.11.GIT In-Reply-To: <20180628124803.110315-1-songxiaowei@hisilicon.com> References: <20180628124803.110315-1-songxiaowei@hisilicon.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [100.107.55.164] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for MSI. Signed-off-by: Xiaowei Song --- drivers/pci/dwc/pcie-kirin.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/pci/dwc/pcie-kirin.c b/drivers/pci/dwc/pcie-kirin.c index d2970a009eb5..6997276eb69c 100644 --- a/drivers/pci/dwc/pcie-kirin.c +++ b/drivers/pci/dwc/pcie-kirin.c @@ -430,6 +430,9 @@ static int kirin_pcie_host_init(struct pcie_port *pp) { kirin_pcie_establish_link(pp); + if (IS_ENABLED(CONFIG_PCI_MSI)) + dw_pcie_msi_init(pp); + return 0; } @@ -445,9 +448,34 @@ static const struct dw_pcie_host_ops kirin_pcie_host_ops = { .host_init = kirin_pcie_host_init, }; +static int kirin_pcie_add_msi(struct dw_pcie *pci, + struct platform_device *pdev) +{ + int ret = 0; + + if (IS_ENABLED(CONFIG_PCI_MSI)) { + ret = platform_get_irq(pdev, 0); + if (ret < 0) { + dev_err(&pdev->dev, + "failed to get MSI IRQ (%d)\n", ret); + return ret; + } + + pci->pp.msi_irq = ret; + } + + return ret; +} + static int __init kirin_add_pcie_port(struct dw_pcie *pci, struct platform_device *pdev) { + int ret; + + ret = kirin_pcie_add_msi(pci, pdev); + if (ret) + return ret; + pci->pp.ops = &kirin_pcie_host_ops; return dw_pcie_host_init(&pci->pp); -- 2.11.GIT