From patchwork Fri Oct 23 05:03:52 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: matt@masarand.com X-Patchwork-Id: 534759 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 2C830141332 for ; Fri, 23 Oct 2015 16:06:04 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751301AbbJWFGD (ORCPT ); Fri, 23 Oct 2015 01:06:03 -0400 Received: from foo.masarand.uk ([104.200.29.153]:36262 "EHLO foo.masarand.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751096AbbJWFGC (ORCPT ); Fri, 23 Oct 2015 01:06:02 -0400 Received: from localhost.localdomain (shredder.masarand.uk [81.187.126.108]) by foo.masarand.uk (Postfix) with ESMTPSA id 83B0AAA6E; Fri, 23 Oct 2015 06:06:00 +0100 (BST) From: Matthew Minter To: linux-pci@vger.kernel.org, bhelgaas@google.com, Liviu.Dudau@arm.com, ddaney@caviumnetworks.com, lorenzo.pieralisi@arm.com Cc: Matthew Minter Subject: [PATCH V4 19/29] MIPS/PCI: Defer IRQ assignment to device enable time Date: Fri, 23 Oct 2015 06:03:52 +0100 Message-Id: <1445576642-29624-20-git-send-email-matt@masarand.com> X-Mailer: git-send-email 2.6.2 In-Reply-To: <1445576642-29624-1-git-send-email-matt@masarand.com> References: <1445576642-29624-1-git-send-email-matt@masarand.com> Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Currently mips PCI IRQs are assigned at boot, this creates an extra pass over the PCI bus and causes hot-plugged devices which are not present at boot to not be given IRQs, this patch set fixes this by registering assignment functions which are then run later during the device enable code path. Signed-off-by: Matthew Minter --- arch/mips/pci/pci.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index b8a0bf5..137d3fe 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -247,13 +247,18 @@ static int __init pcibios_init(void) for (hose = hose_head; hose; hose = hose->next) pcibios_scanbus(hose); - pci_fixup_irqs(pci_common_swizzle, pcibios_map_irq); - pci_initialized = 1; return 0; } +int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge) +{ + bridge->swizzle_irq = pci_common_swizzle; + bridge->map_irq = pcibios_map_irq; + return 0; +} + subsys_initcall(pcibios_init); static int pcibios_enable_resources(struct pci_dev *dev, int mask)