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 <bzolnier@gmail.com>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c
index 47265030f87d..0677ab016ef8 100644
--- a/drivers/ide/pci/trm290.c
+++ b/drivers/ide/pci/trm290.c
@@ -257,16 +257,10 @@ static void __devinit init_hwif_trm290(ide_hwif_t *hwif)
         printk(KERN_INFO "    %s: BM-DMA at 0x%04lx-0x%04lx",
                hwif->name, hwif->dma_base, hwif->dma_base + 3);
 
-        if (!request_region(hwif->dma_base, 4, hwif->name)) {
-                printk(KERN_CONT " -- Error, ports in use.\n");
-                return;
-        }
-
         hwif->dmatable_cpu = pci_alloc_consistent(dev, PRD_ENTRIES * PRD_BYTES,
                                                   &hwif->dmatable_dma);
         if (!hwif->dmatable_cpu) {
                 printk(KERN_CONT " -- Error, unable to allocate DMA table.\n");
-                release_region(hwif->dma_base, 4);
                 return;
         }
         printk(KERN_CONT "\n");