From patchwork Thu Nov 1 02:19:08 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongtao Jia X-Patchwork-Id: 196074 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id C86592C03B8 for ; Thu, 1 Nov 2012 14:02:31 +1100 (EST) Received: from tx2outboundpool.messaging.microsoft.com (tx2ehsobe003.messaging.microsoft.com [65.55.88.13]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 6AA402C00AC for ; Thu, 1 Nov 2012 14:02:07 +1100 (EST) Received: from mail86-tx2-R.bigfish.com (10.9.14.244) by TX2EHSOBE014.bigfish.com (10.9.40.34) with Microsoft SMTP Server id 14.1.225.23; Thu, 1 Nov 2012 03:02:01 +0000 Received: from mail86-tx2 (localhost [127.0.0.1]) by mail86-tx2-R.bigfish.com (Postfix) with ESMTP id 6E0802E00B3; Thu, 1 Nov 2012 03:02:01 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 0 X-BigFish: VS0(zzzz1202h1d1ah1d2ahzz8275bhz2dh2a8h668h839he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h1155h) Received: from mail86-tx2 (localhost.localdomain [127.0.0.1]) by mail86-tx2 (MessageSwitch) id 1351738919915821_15142; Thu, 1 Nov 2012 03:01:59 +0000 (UTC) Received: from TX2EHSMHS014.bigfish.com (unknown [10.9.14.235]) by mail86-tx2.bigfish.com (Postfix) with ESMTP id DA847120054; Thu, 1 Nov 2012 03:01:59 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by TX2EHSMHS014.bigfish.com (10.9.99.114) with Microsoft SMTP Server (TLS) id 14.1.225.23; Thu, 1 Nov 2012 03:01:58 +0000 Received: from tx30smr01.am.freescale.net (10.81.153.31) by 039-SN1MMR1-004.039d.mgd.msft.net (10.84.1.14) with Microsoft SMTP Server (TLS) id 14.2.318.3; Thu, 1 Nov 2012 03:01:58 +0000 Received: from rock.am.freescale.net (rock.ap.freescale.net [10.193.20.106]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id qA131m6M020764; Wed, 31 Oct 2012 20:01:52 -0700 From: Jia Hongtao To: , Subject: [PATCH] powerpc/fsl-pci: Add PCI controller ATMU PM support Date: Thu, 1 Nov 2012 10:19:08 +0800 Message-ID: <1351736348-26754-1-git-send-email-B38951@freescale.com> X-Mailer: git-send-email 1.7.5.1 MIME-Version: 1.0 X-OriginatorOrg: freescale.com Cc: B07421@freescale.com, b38951@freescale.com X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Power supply for PCI controller ATMU registers is off when system go to deep-sleep state. So ATMU registers should be re-setup during PCI controllers resume from sleep. Signed-off-by: Jia Hongtao Signed-off-by: Li Yang --- arch/powerpc/sysdev/fsl_pci.c | 21 +++++++++++++++++++-- 1 files changed, 19 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index ffb93ae..793a017 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -89,7 +89,7 @@ static int fsl_pci_dma_set_mask(struct device *dev, u64 dma_mask) return 0; } -static int __init setup_one_atmu(struct ccsr_pci __iomem *pci, +static int setup_one_atmu(struct ccsr_pci __iomem *pci, unsigned int index, const struct resource *res, resource_size_t offset) { @@ -126,7 +126,7 @@ static int __init setup_one_atmu(struct ccsr_pci __iomem *pci, } /* atmu setup for fsl pci/pcie controller */ -static void __init setup_pci_atmu(struct pci_controller *hose, +static void setup_pci_atmu(struct pci_controller *hose, struct resource *rsrc) { struct ccsr_pci __iomem *pci; @@ -902,12 +902,29 @@ static int __devinit fsl_pci_probe(struct platform_device *pdev) return 0; } +#ifdef CONFIG_SUSPEND +static int fsl_pci_resume(struct platform_device *pdev) +{ + struct pci_controller *hose; + struct resource pci_rsrc; + + hose = pci_find_hose_for_OF_device(pdev->dev.of_node); + of_address_to_resource(pdev->dev.of_node, 0, &pci_rsrc); + setup_pci_atmu(hose, &pci_rsrc); + + return 0; +} +#endif + static struct platform_driver fsl_pci_driver = { .driver = { .name = "fsl-pci", .of_match_table = pci_ids, }, .probe = fsl_pci_probe, +#ifdef CONFIG_SUSPEND + .resume = fsl_pci_resume, +#endif }; static int __init fsl_pci_init(void)