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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 22:25:19 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 22:25:19 +0200
commit0d1bad216c43bcee84cc24d1ed003c19134d2645 (patch)
tree3cdcf7592c4e1a8899cde78beb512bffa21abf77 /drivers/ide/pci
parent7ebe5936c214c656a1625abf9ec3b09e3d1bf34a (diff)
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>
Diffstat (limited to 'drivers/ide/pci')
-rw-r--r--drivers/ide/pci/scc_pata.c31
-rw-r--r--drivers/ide/pci/trm290.c6
2 files changed, 9 insertions, 28 deletions
diff --git a/drivers/ide/pci/scc_pata.c b/drivers/ide/pci/scc_pata.c
index c01e2da5c9e..41a993f3ded 100644
--- a/drivers/ide/pci/scc_pata.c
+++ b/drivers/ide/pci/scc_pata.c
@@ -483,7 +483,7 @@ static int setup_mmio_scc (struct pci_dev *dev, const char *name)
unsigned long dma_size = pci_resource_len(dev, 1);
void __iomem *ctl_addr;
void __iomem *dma_addr;
- int i;
+ int i, ret;
for (i = 0; i < MAX_HWIFS; i++) {
if (scc_ports[i].ctl == 0)
@@ -492,21 +492,17 @@ static int setup_mmio_scc (struct pci_dev *dev, const char *name)
if (i >= MAX_HWIFS)
return -ENOMEM;
- if (!request_mem_region(ctl_base, ctl_size, name)) {
- printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME);
- goto fail_0;
- }
-
- if (!request_mem_region(dma_base, dma_size, name)) {
- printk(KERN_WARNING "%s: IDE controller MMIO ports not available.\n", SCC_PATA_NAME);
- goto fail_1;
+ ret = pci_request_selected_regions(dev, (1 << 2) - 1, name);
+ if (ret < 0) {
+ printk(KERN_ERR "%s: can't reserve resources\n", name);
+ return ret;
}
if ((ctl_addr = ioremap(ctl_base, ctl_size)) == NULL)
- goto fail_2;
+ goto fail_0;
if ((dma_addr = ioremap(dma_base, dma_size)) == NULL)
- goto fail_3;
+ goto fail_1;
pci_set_master(dev);
scc_ports[i].ctl = (unsigned long)ctl_addr;
@@ -515,12 +511,8 @@ static int setup_mmio_scc (struct pci_dev *dev, const char *name)
return 1;
- fail_3:
- iounmap(ctl_addr);
- fail_2:
- release_mem_region(dma_base, dma_size);
fail_1:
- release_mem_region(ctl_base, ctl_size);
+ iounmap(ctl_addr);
fail_0:
return -ENOMEM;
}
@@ -757,10 +749,6 @@ static void __devexit scc_remove(struct pci_dev *dev)
{
struct scc_ports *ports = pci_get_drvdata(dev);
ide_hwif_t *hwif = ports->hwif;
- unsigned long ctl_base = pci_resource_start(dev, 0);
- unsigned long dma_base = pci_resource_start(dev, 1);
- unsigned long ctl_size = pci_resource_len(dev, 0);
- unsigned long dma_size = pci_resource_len(dev, 1);
if (hwif->dmatable_cpu) {
pci_free_consistent(dev, PRD_ENTRIES * PRD_BYTES,
@@ -773,8 +761,7 @@ static void __devexit scc_remove(struct pci_dev *dev)
hwif->chipset = ide_unknown;
iounmap((void*)ports->dma);
iounmap((void*)ports->ctl);
- release_mem_region(dma_base, dma_size);
- release_mem_region(ctl_base, ctl_size);
+ pci_release_selected_regions(dev, (1 << 2) - 1);
memset(ports, 0, sizeof(*ports));
}
diff --git a/drivers/ide/pci/trm290.c b/drivers/ide/pci/trm290.c
index 47265030f87..0677ab016ef 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");