From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: 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) 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> MIME-Version: 1.0 Content-Type: text/plain Cc: B07421@freescale.com, b38951@freescale.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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) -- 1.7.5.1