From patchwork Fri Sep 18 08:00:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Z.Q. Hou" X-Patchwork-Id: 11784285 X-Patchwork-Delegate: lorenzo.pieralisi@arm.com Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0A9E259D for ; Fri, 18 Sep 2020 08:19:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E3B7D21D24 for ; Fri, 18 Sep 2020 08:19:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726441AbgIRISy (ORCPT ); Fri, 18 Sep 2020 04:18:54 -0400 Received: from inva020.nxp.com ([92.121.34.13]:56944 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726308AbgIRISx (ORCPT ); Fri, 18 Sep 2020 04:18:53 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 0D08B1A01FB; Fri, 18 Sep 2020 10:08:59 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 9FF741A0291; Fri, 18 Sep 2020 10:08:51 +0200 (CEST) Received: from localhost.localdomain (mega.ap.freescale.net [10.192.208.232]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id AAFA3402E3; Fri, 18 Sep 2020 10:08:42 +0200 (CEST) From: Zhiqiang Hou To: linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, robh+dt@kernel.org, lorenzo.pieralisi@arm.com, bhelgaas@google.com, shawnguo@kernel.org, kishon@ti.com, leoyang.li@nxp.com, gustavo.pimentel@synopsys.com, arnd@arndb.de, gregkh@linuxfoundation.org, andrew.murray@arm.com Cc: minghuan.Lian@nxp.com, mingkai.hu@nxp.com, roy.zang@nxp.com, Xiaowei Bao , Hou Zhiqiang Subject: [PATCHv8 08/12] PCI: layerscape: Modify the MSIX to the doorbell mode Date: Fri, 18 Sep 2020 16:00:20 +0800 Message-Id: <20200918080024.13639-9-Zhiqiang.Hou@nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200918080024.13639-1-Zhiqiang.Hou@nxp.com> References: <20200918080024.13639-1-Zhiqiang.Hou@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org From: Xiaowei Bao dw_pcie_ep_raise_msix_irq was never called in the exisitng driver before, because the ls1046a platform don't support the MSIX feature and msix_capable was always set to false. Now that add the ls1088a platform with MSIX support, use the doorbell method to support the MSIX feature. Signed-off-by: Xiaowei Bao Signed-off-by: Hou Zhiqiang Reviewed-by: Andrew Murray --- V8: - No change. drivers/pci/controller/dwc/pci-layerscape-ep.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pci-layerscape-ep.c b/drivers/pci/controller/dwc/pci-layerscape-ep.c index 9601f9c09cb1..bfab1c694f00 100644 --- a/drivers/pci/controller/dwc/pci-layerscape-ep.c +++ b/drivers/pci/controller/dwc/pci-layerscape-ep.c @@ -79,7 +79,8 @@ static int ls_pcie_ep_raise_irq(struct dw_pcie_ep *ep, u8 func_no, case PCI_EPC_IRQ_MSI: return dw_pcie_ep_raise_msi_irq(ep, func_no, interrupt_num); case PCI_EPC_IRQ_MSIX: - return dw_pcie_ep_raise_msix_irq(ep, func_no, interrupt_num); + return dw_pcie_ep_raise_msix_irq_doorbell(ep, func_no, + interrupt_num); default: dev_err(pci->dev, "UNKNOWN IRQ type\n"); return -EINVAL;