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=-6.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,UNPARSEABLE_RELAY autolearn=unavailable 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 8A481C004D2 for ; Sat, 29 Sep 2018 00:17:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5A6842073F for ; Sat, 29 Sep 2018 00:17:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5A6842073F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-pci-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726989AbeI2GnI (ORCPT ); Sat, 29 Sep 2018 02:43:08 -0400 Received: from Mailgw01.mediatek.com ([1.203.163.78]:63092 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726804AbeI2GnI (ORCPT ); Sat, 29 Sep 2018 02:43:08 -0400 X-UUID: 16a853d226974ae780afdc44ecb72dc7-20180929 Received: from mtkcas35.mediatek.inc [(172.27.4.250)] by mailgw01.mediatek.com (envelope-from ) (mailgw01.mediatek.com ESMTP with TLS) with ESMTP id 782850601; Sat, 29 Sep 2018 08:16:48 +0800 Received: from MTKCAS36.mediatek.inc (172.27.4.186) by MTKMBS31N1.mediatek.inc (172.27.4.69) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sat, 29 Sep 2018 08:16:46 +0800 Received: from [10.17.3.153] (10.17.3.153) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Sat, 29 Sep 2018 08:16:45 +0800 Message-ID: <1538180205.14753.20.camel@mhfsdcap03> Subject: Re: [PATCH v5 4/9] PCI: mediatek: Convert to use pci_host_probe() From: Honghui Zhang To: Ryder Lee CC: , , , , , , , , , , , , , , Date: Sat, 29 Sep 2018 08:16:45 +0800 In-Reply-To: <1538149277.23182.7.camel@mtkswgap22> References: <1538129080-8206-1-git-send-email-honghui.zhang@mediatek.com> <1538129080-8206-5-git-send-email-honghui.zhang@mediatek.com> <1538149277.23182.7.camel@mtkswgap22> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3-0ubuntu6 Content-Transfer-Encoding: 7bit MIME-Version: 1.0 X-MTK: N Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org On Fri, 2018-09-28 at 23:41 +0800, Ryder Lee wrote: > On Fri, 2018-09-28 at 18:04 +0800, honghui.zhang@mediatek.com wrote: > > From: Honghui Zhang > > > > Part of mtk_pcie_register_host is an open-coded version of > > pci_host_probe(). So instead of duplicating this code, use > > pci_host_probe() directly and remove mtk_pcie_register_host. > > > > Signed-off-by: Honghui Zhang > > --- > > drivers/pci/controller/pcie-mediatek.c | 37 ++++++++-------------------------- > > 1 file changed, 8 insertions(+), 29 deletions(-) > > > > diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c > > index e2c4127..cbf4543 100644 > > --- a/drivers/pci/controller/pcie-mediatek.c > > +++ b/drivers/pci/controller/pcie-mediatek.c > > @@ -1125,34 +1125,6 @@ static int mtk_pcie_request_resources(struct mtk_pcie *pcie) > > return 0; > > } > > > > -static int mtk_pcie_register_host(struct pci_host_bridge *host) > > -{ > > - struct mtk_pcie *pcie = pci_host_bridge_priv(host); > > - struct pci_bus *child; > > - int err; > > To make the patch simple, could we keep these host->*. and return > pci_host_probe() directly? Well, I guess it's not necessary to keep the mtk_pcie_register_host just wrap pci_host_probe(). Put those host->* directly in probe function is no harm, it will reduce one function call and related parameter passing. I may update this patch to keep the mtk_pcie_register_host if you insist though I prefer the current way. Thanks. > > > - host->busnr = pcie->busn.start; > > - host->dev.parent = pcie->dev; > > - host->ops = pcie->soc->ops; > > - host->map_irq = of_irq_parse_and_map_pci; > > - host->swizzle_irq = pci_common_swizzle; > > - host->sysdata = pcie; > > - > > - err = pci_scan_root_bus_bridge(host); > > - if (err < 0) > > - return err; > > - > > - pci_bus_size_bridges(host->bus); > > - pci_bus_assign_resources(host->bus); > > - > > - list_for_each_entry(child, &host->bus->children, node) > > - pcie_bus_configure_settings(child); > > - > > - pci_bus_add_devices(host->bus); > > - > > - return 0; > > -} > > - > > static int mtk_pcie_probe(struct platform_device *pdev) > > { > > struct device *dev = &pdev->dev; > > @@ -1179,7 +1151,14 @@ static int mtk_pcie_probe(struct platform_device *pdev) > > if (err) > > goto put_resources; > > > > - err = mtk_pcie_register_host(host); > > + host->busnr = pcie->busn.start; > > + host->dev.parent = pcie->dev; > > + host->ops = pcie->soc->ops; > > + host->map_irq = of_irq_parse_and_map_pci; > > + host->swizzle_irq = pci_common_swizzle; > > + host->sysdata = pcie; > > + > > + err = pci_host_probe(host); > > if (err) > > goto put_resources; > > > >