From patchwork Wed May 12 14:41:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 436496 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, 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 8C72EC43618 for ; Wed, 12 May 2021 16:37:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5152C61278 for ; Wed, 12 May 2021 16:37:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242350AbhELQeb (ORCPT ); Wed, 12 May 2021 12:34:31 -0400 Received: from mail.kernel.org ([198.145.29.99]:42394 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241450AbhELQ1T (ORCPT ); Wed, 12 May 2021 12:27:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 783C9613EE; Wed, 12 May 2021 15:52:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620834756; bh=WPxUwQe8u99ofw6ZGE11GzGFazsZ1tTEFDYvN+gAbSQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=u8EWkmOO7jd2KMb2/lCFvNBByicMSHgaLYFTV7yyWMl38YHIf2exxkAdQp2Og6r1V Nj4JsWTiRM2avrtVd07OWqzeckfd9IlTEItVSVbStMo7+w2VfUqCGZfZGzMzr0Q868 ArLyEe4th9GWICuCndjudqMRmkXfotYsGD39zcYQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Kishon Vijay Abraham I , Lorenzo Pieralisi , =?utf-8?q?Krzys?= =?utf-8?q?ztof_Wilczy=C5=84ski?= Subject: [PATCH 5.12 036/677] PCI: keystone: Let AM65 use the pci_ops defined in pcie-designware-host.c Date: Wed, 12 May 2021 16:41:22 +0200 Message-Id: <20210512144838.414882629@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144837.204217980@linuxfoundation.org> References: <20210512144837.204217980@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Kishon Vijay Abraham I commit 3d0b2a3a87ce5ae85de46c4241afd52ab8b566fe upstream. Both TI's AM65x (K3) and TI's K2 PCIe driver are implemented in pci-keystone. However Only K2 PCIe driver should use it's own pci_ops for configuration space accesses. But commit 10a797c6e54a ("PCI: dwc: keystone: Use pci_ops for config space accessors") used custom pci_ops for both AM65x and K2. This breaks configuration space access for AM65x platform. Fix it here. Link: https://lore.kernel.org/r/20210317131518.11040-1-kishon@ti.com Fixes: 10a797c6e54a ("PCI: dwc: keystone: Use pci_ops for config space accessors") Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Lorenzo Pieralisi Reviewed-by: Krzysztof Wilczyński Cc: # v5.10 Signed-off-by: Greg Kroah-Hartman --- drivers/pci/controller/dwc/pci-keystone.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/pci/controller/dwc/pci-keystone.c +++ b/drivers/pci/controller/dwc/pci-keystone.c @@ -798,7 +798,8 @@ static int __init ks_pcie_host_init(stru int ret; pp->bridge->ops = &ks_pcie_ops; - pp->bridge->child_ops = &ks_child_pcie_ops; + if (!ks_pcie->is_am6) + pp->bridge->child_ops = &ks_child_pcie_ops; ret = ks_pcie_config_legacy_irq(ks_pcie); if (ret)