From patchwork Fri Apr 3 09:25:46 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yijing Wang X-Patchwork-Id: 6155571 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1098FBF4A6 for ; Fri, 3 Apr 2015 09:48:39 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 6C5A8203DA for ; Fri, 3 Apr 2015 09:48:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 7513B203C4 for ; Fri, 3 Apr 2015 09:48:36 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1YdyAD-0004s0-O5; Fri, 03 Apr 2015 09:45:21 +0000 Received: from szxga01-in.huawei.com ([58.251.152.64]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Ydy08-0003e6-2m for linux-arm-kernel@lists.infradead.org; Fri, 03 Apr 2015 09:34:58 +0000 Received: from 172.24.2.119 (EHLO szxeml430-hub.china.huawei.com) ([172.24.2.119]) by szxrg01-dlp.huawei.com (MOS 4.3.7-GA FastPath queued) with ESMTP id CLR08840; Fri, 03 Apr 2015 17:28:58 +0800 (CST) Received: from localhost.localdomain (10.175.100.166) by szxeml430-hub.china.huawei.com (10.82.67.185) with Microsoft SMTP Server id 14.3.158.1; Fri, 3 Apr 2015 17:28:44 +0800 From: Yijing Wang To: Bjorn Helgaas Subject: [PATCH v9 12/30] powerpc/PCI: Rename pcibios_root_bridge_prepare() to pcibios_set_root_bus_speed() Date: Fri, 3 Apr 2015 17:25:46 +0800 Message-ID: <1428053164-28277-14-git-send-email-wangyijing@huawei.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1428053164-28277-1-git-send-email-wangyijing@huawei.com> References: <1428053164-28277-1-git-send-email-wangyijing@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.100.166] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150403_023456_658329_76BD50C6 X-CRM114-Status: GOOD ( 14.64 ) X-Spam-Score: -0.0 (/) Cc: linux-ia64@vger.kernel.org, linux-pci@vger.kernel.org, Yijing Wang , Guan Xuetao , Russell King , x86@kernel.org, Geert Uytterhoeven , Benjamin Herrenschmidt , Arnd Bergmann , Marc Zyngier , Rusty Russell , linux-m68k@lists.linux-m68k.org, Thomas Gleixner , Yinghai Lu , linux-arm-kernel@lists.infradead.org, dja@axtens.net, Liviu Dudau , Tony Luck , linux-kernel@vger.kernel.org, Jiang Liu , linux-alpha@vger.kernel.org, "David S. Miller" X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP pcibios_root_bridge_prepare() in powerpc set root bus speed, it's not the preparation for pci host bridge. Rename it for better readability, and we could move pcibios_root_bridge_prepare() to pci_create_host_bridge(), in which root bus is not created. We will clean up these weak functions, and add pci_host_bridge_ops to do the same thing in later patch. Signed-off-by: Yijing Wang --- arch/powerpc/include/asm/machdep.h | 2 +- arch/powerpc/kernel/pci-common.c | 8 +++----- arch/powerpc/platforms/pseries/pci.c | 8 ++++---- arch/powerpc/platforms/pseries/pseries.h | 2 +- arch/powerpc/platforms/pseries/setup.c | 2 +- drivers/pci/probe.c | 5 +++++ 6 files changed, 15 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h index c8175a3..b811d12 100644 --- a/arch/powerpc/include/asm/machdep.h +++ b/arch/powerpc/include/asm/machdep.h @@ -129,7 +129,7 @@ struct machdep_calls { void (*pcibios_fixup)(void); int (*pci_probe_mode)(struct pci_bus *); void (*pci_irq_fixup)(struct pci_dev *dev); - int (*pcibios_root_bridge_prepare)(struct pci_host_bridge + void (*pcibios_set_root_bus_speed)(struct pci_host_bridge *bridge); /* To setup PHBs when using automatic OF platform driver for PCI */ diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 9913f6c..2c58200 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -767,12 +767,10 @@ int pci_proc_domain(struct pci_bus *bus) return 1; } -int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) +void pcibios_set_root_bus_speed(struct pci_host_bridge *bridge) { - if (ppc_md.pcibios_root_bridge_prepare) - return ppc_md.pcibios_root_bridge_prepare(bridge); - - return 0; + if (ppc_md.pcibios_set_root_bus_speed) + return ppc_md.pcibios_set_root_bus_speed(bridge); } /* This header fixup will do the resource fixup for all devices as they are diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c index fe16a50..89ff79c 100644 --- a/arch/powerpc/platforms/pseries/pci.c +++ b/arch/powerpc/platforms/pseries/pci.c @@ -110,7 +110,7 @@ static void fixup_winbond_82c105(struct pci_dev* dev) DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105, fixup_winbond_82c105); -int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) +void pseries_set_root_bus_speed(struct pci_host_bridge *bridge) { struct device_node *dn, *pdn; struct pci_bus *bus; @@ -121,7 +121,7 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) dn = pcibios_get_phb_of_node(bus); if (!dn) - return 0; + return; for (pdn = dn; pdn != NULL; pdn = of_get_next_parent(pdn)) { rc = of_property_read_u32_array(pdn, @@ -135,7 +135,7 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) if (rc) { pr_debug("no ibm,pcie-link-speed-stats property\n"); - return 0; + return; } switch (pcie_link_speed_stats[0]) { @@ -168,5 +168,5 @@ int pseries_root_bridge_prepare(struct pci_host_bridge *bridge) break; } - return 0; + return; } diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h index 1796c54..9aa9c13 100644 --- a/arch/powerpc/platforms/pseries/pseries.h +++ b/arch/powerpc/platforms/pseries/pseries.h @@ -63,7 +63,7 @@ extern int dlpar_detach_node(struct device_node *); /* PCI root bridge prepare function override for pseries */ struct pci_host_bridge; -int pseries_root_bridge_prepare(struct pci_host_bridge *bridge); +void pseries_set_root_bus_speed(struct pci_host_bridge *bridge); unsigned long pseries_memory_block_size(void); diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c index e445b67..b196c0d 100644 --- a/arch/powerpc/platforms/pseries/setup.c +++ b/arch/powerpc/platforms/pseries/setup.c @@ -496,7 +496,7 @@ static void __init pSeries_setup_arch(void) ppc_md.enable_pmcs = power4_enable_pmcs; } - ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare; + ppc_md.pcibios_set_root_bus_speed = pseries_set_root_bus_speed; if (firmware_has_feature(FW_FEATURE_SET_MODE)) { long rc; diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index 0ac2bf6..418a426 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -1856,6 +1856,10 @@ int __weak pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) return 0; } +void __weak pcibios_set_root_bus_speed(struct pci_host_bridge *bridge) +{ +} + void __weak pcibios_add_bus(struct pci_bus *bus) { } @@ -1893,6 +1897,7 @@ static struct pci_bus *__pci_create_root_bus( if (error) goto put_dev; + pcibios_set_root_bus_speed(bridge); device_enable_async_suspend(b->bridge); pci_set_bus_of_node(b);