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>
diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c
index dc4bc06..986ec46 100644
--- a/drivers/ide/ide-dma.c
+++ b/drivers/ide/ide-dma.c
@@ -810,7 +810,7 @@
EXPORT_SYMBOL(ide_dma_timeout);
-static void ide_release_dma_engine(ide_hwif_t *hwif)
+void ide_release_dma_engine(ide_hwif_t *hwif)
{
if (hwif->dmatable_cpu) {
struct pci_dev *pdev = to_pci_dev(hwif->dev);
@@ -821,27 +821,6 @@
}
}
-static int ide_release_iomio_dma(ide_hwif_t *hwif)
-{
- release_region(hwif->dma_base, 8);
- if (hwif->extra_ports)
- release_region(hwif->extra_base, hwif->extra_ports);
- return 1;
-}
-
-/*
- * Needed for allowing full modular support of ide-driver
- */
-int ide_release_dma(ide_hwif_t *hwif)
-{
- ide_release_dma_engine(hwif);
-
- if (hwif->mmio)
- return 1;
- else
- return ide_release_iomio_dma(hwif);
-}
-
static int ide_allocate_dma_engine(ide_hwif_t *hwif)
{
struct pci_dev *pdev = to_pci_dev(hwif->dev);
@@ -871,25 +850,9 @@
printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx",
hwif->name, base, base + 7);
- if (!request_region(base, 8, hwif->name)) {
- printk(" -- Error, ports in use.\n");
- return 1;
- }
-
- if (hwif->cds->extra) {
+ if (hwif->cds->extra)
hwif->extra_base = base + (hwif->channel ? 8 : 16);
- if (!hwif->mate || !hwif->mate->extra_ports) {
- if (!request_region(hwif->extra_base,
- hwif->cds->extra, hwif->cds->name)) {
- printk(" -- Error, extra ports in use.\n");
- release_region(base, 8);
- return 1;
- }
- hwif->extra_ports = hwif->cds->extra;
- }
- }
-
return 0;
}
@@ -909,7 +872,7 @@
return;
if (ide_allocate_dma_engine(hwif)) {
- ide_release_dma(hwif);
+ ide_release_dma_engine(hwif);
return;
}