From patchwork Wed May 6 15:14:21 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 211435 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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, 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 C91E0C4725A for ; Wed, 6 May 2020 15:15:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9819521582 for ; Wed, 6 May 2020 15:15:26 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="HDwiHb9X" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729432AbgEFPPZ (ORCPT ); Wed, 6 May 2020 11:15:25 -0400 Received: from lelv0143.ext.ti.com ([198.47.23.248]:49322 "EHLO lelv0143.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729244AbgEFPPS (ORCPT ); Wed, 6 May 2020 11:15:18 -0400 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 046FExeE096943; Wed, 6 May 2020 10:14:59 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1588778099; bh=MKV79ofiysqnjU4+7T9T2gezrhTObALnfWPqqZdKvpo=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=HDwiHb9XbJG0exStePTLe8369CBn149z3g44GCxwxtVp/oFxh4U/THe1+af871SGA Ho/zuVOU9Eair34VAuZUHyaC+gPQyIoDyiT8N2ht55lzG9ntevnRmw/YDtAJi0UdYZ W65H3TRgCSV4f2ZKqfSQ5oKNxmfsfx8oSg3rtkR4= Received: from DFLE104.ent.ti.com (dfle104.ent.ti.com [10.64.6.25]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 046FEx6f100075 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 6 May 2020 10:14:59 -0500 Received: from DFLE112.ent.ti.com (10.64.6.33) by DFLE104.ent.ti.com (10.64.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 6 May 2020 10:14:57 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE112.ent.ti.com (10.64.6.33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Wed, 6 May 2020 10:14:57 -0500 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 046FEUgC119457; Wed, 6 May 2020 10:14:54 -0500 From: Kishon Vijay Abraham I To: Bjorn Helgaas , Rob Herring , Lorenzo Pieralisi , Arnd Bergmann , Tom Joseph CC: Greg Kroah-Hartman , , , , , , Subject: [PATCH v4 06/14] PCI: cadence: Allow pci_host_bridge to have custom pci_ops Date: Wed, 6 May 2020 20:44:21 +0530 Message-ID: <20200506151429.12255-7-kishon@ti.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200506151429.12255-1-kishon@ti.com> References: <20200506151429.12255-1-kishon@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org Certain platforms like TI's J721E allows only 32-bit configuration space access. In such cases pci_generic_config_read and pci_generic_config_write cannot be used. Add support in Cadence core to let pci_host_bridge have custom pci_ops. Signed-off-by: Kishon Vijay Abraham I --- drivers/pci/controller/cadence/pcie-cadence-host.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c index a60b9627cfbf..6c84520318a7 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-host.c +++ b/drivers/pci/controller/cadence/pcie-cadence-host.c @@ -291,7 +291,8 @@ int cdns_pcie_host_setup(struct cdns_pcie_rc *rc) list_splice_init(&resources, &bridge->windows); bridge->dev.parent = dev; bridge->busnr = pcie->bus; - bridge->ops = &cdns_pcie_host_ops; + if (!bridge->ops) + bridge->ops = &cdns_pcie_host_ops; bridge->map_irq = of_irq_parse_and_map_pci; bridge->swizzle_irq = pci_common_swizzle;