From 0d1bad216c43bcee84cc24d1ed003c19134d2645 Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Sat, 26 Apr 2008 22:25:19 +0200 Subject: ide: manage resources for PCI devices in ide_pci_enable() (take 3) * Reserve PCI BARs 0-3 (0-1 for single port controllers) in ide_pci_enable() and remove ide_hwif_request_regions() call from ide_device_add_all() (also cleanup resource management in scc_pata host driver). * Fix handling of PCI BAR 4 in ide_pci_enable(), then cleanup ide_iomio_dma() (+ init_hwif_trm290() in trm290 host driver) and remove ide_release[_iomio]_dma(). v2: * Fixup trm290 host driver. v3: * Because of scc_pata host driver changes we need to call pci_request_selected_regions() also in setup_mmio_scc(). Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/setup-pci.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) (limited to 'drivers/ide/setup-pci.c') diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c index 6302010fd8e..8812eaa7f16 100644 --- a/drivers/ide/setup-pci.c +++ b/drivers/ide/setup-pci.c @@ -158,7 +158,7 @@ EXPORT_SYMBOL_GPL(ide_setup_pci_noise); static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) { - int ret; + int ret, bars; if (pci_enable_device(dev)) { ret = pci_enable_device_io(dev); @@ -181,13 +181,21 @@ static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d) goto out; } - /* FIXME: Temporary - until we put in the hotplug interface logic - Check that the bits we want are not in use by someone else. */ - ret = pci_request_region(dev, 4, "ide_tmp"); - if (ret < 0) - goto out; + if (d->host_flags & IDE_HFLAG_SINGLE) + bars = (1 << 2) - 1; + else + bars = (1 << 4) - 1; - pci_release_region(dev, 4); + if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { + if (d->host_flags & IDE_HFLAG_CS5520) + bars |= (1 << 2); + else + bars |= (1 << 4); + } + + ret = pci_request_selected_regions(dev, bars, d->name); + if (ret < 0) + printk(KERN_ERR "%s: can't reserve resources\n", d->name); out: return ret; } -- cgit v1.2.3