From patchwork Mon Mar 27 09:49:50 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Pieralisi X-Patchwork-Id: 9646293 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 15FD460328 for ; Mon, 27 Mar 2017 10:07:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F0A98228C9 for ; Mon, 27 Mar 2017 10:07:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E565528364; Mon, 27 Mar 2017 10:07:14 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4EFF72837F for ; Mon, 27 Mar 2017 10:07:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752923AbdC0KHI (ORCPT ); Mon, 27 Mar 2017 06:07:08 -0400 Received: from foss.arm.com ([217.140.101.70]:60176 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752507AbdC0KBq (ORCPT ); Mon, 27 Mar 2017 06:01:46 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B92DD19CC; Mon, 27 Mar 2017 02:51:00 -0700 (PDT) Received: from red-moon.cambridge.arm.com (red-moon.cambridge.arm.com [10.1.206.55]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id B3C183F23B; Mon, 27 Mar 2017 02:50:59 -0700 (PDT) From: Lorenzo Pieralisi To: linux-pci@vger.kernel.org Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Lorenzo Pieralisi , Bjorn Helgaas , Rob Herring Subject: [PATCH v2 22/22] PCI: versatile: update PCI config space remap function Date: Mon, 27 Mar 2017 10:49:50 +0100 Message-Id: <20170327094954.7162-23-lorenzo.pieralisi@arm.com> X-Mailer: git-send-email 2.10.0 In-Reply-To: <20170327094954.7162-1-lorenzo.pieralisi@arm.com> References: <20170327094954.7162-1-lorenzo.pieralisi@arm.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP PCI configuration space should be mapped with a memory region type that generates on the CPU host bus non-posted write transations. Update the driver to use the devm_ioremap_nopost* interface to make sure the correct memory mappings for PCI configuration space are used. Signed-off-by: Lorenzo Pieralisi Cc: Bjorn Helgaas Cc: Rob Herring --- drivers/pci/host/pci-versatile.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/host/pci-versatile.c b/drivers/pci/host/pci-versatile.c index 5ebee7d..60fd396 100644 --- a/drivers/pci/host/pci-versatile.c +++ b/drivers/pci/host/pci-versatile.c @@ -138,7 +138,8 @@ static int versatile_pci_probe(struct platform_device *pdev) return PTR_ERR(versatile_cfg_base[0]); res = platform_get_resource(pdev, IORESOURCE_MEM, 2); - versatile_cfg_base[1] = devm_ioremap_resource(&pdev->dev, res); + versatile_cfg_base[1] = devm_ioremap_nopost_resource(&pdev->dev, + res); if (IS_ERR(versatile_cfg_base[1])) return PTR_ERR(versatile_cfg_base[1]);