aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/ide.c36
1 files changed, 11 insertions, 25 deletions
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index b7a040ef12f..f04b53cb023 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -251,29 +251,21 @@ static struct resource* hwif_request_region(ide_hwif_t *hwif,
int ide_hwif_request_regions(ide_hwif_t *hwif)
{
unsigned long addr;
- unsigned int i;
if (hwif->mmio)
return 0;
+
addr = hwif->io_ports[IDE_CONTROL_OFFSET];
+
if (addr && !hwif_request_region(hwif, addr, 1))
goto control_region_busy;
- hwif->straight8 = 0;
+
addr = hwif->io_ports[IDE_DATA_OFFSET];
- if ((addr | 7) == hwif->io_ports[IDE_STATUS_OFFSET]) {
- if (!hwif_request_region(hwif, addr, 8))
- goto data_region_busy;
- hwif->straight8 = 1;
- return 0;
- }
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++) {
- addr = hwif->io_ports[i];
- if (!hwif_request_region(hwif, addr, 1)) {
- while (--i)
- release_region(addr, 1);
- goto data_region_busy;
- }
- }
+ BUG_ON((addr | 7) != hwif->io_ports[IDE_STATUS_OFFSET]);
+
+ if (!hwif_request_region(hwif, addr, 8))
+ goto data_region_busy;
+
return 0;
data_region_busy:
@@ -299,19 +291,13 @@ control_region_busy:
void ide_hwif_release_regions(ide_hwif_t *hwif)
{
- u32 i = 0;
-
if (hwif->mmio)
return;
+
if (hwif->io_ports[IDE_CONTROL_OFFSET])
release_region(hwif->io_ports[IDE_CONTROL_OFFSET], 1);
- if (hwif->straight8) {
- release_region(hwif->io_ports[IDE_DATA_OFFSET], 8);
- return;
- }
- for (i = IDE_DATA_OFFSET; i <= IDE_STATUS_OFFSET; i++)
- if (hwif->io_ports[i])
- release_region(hwif->io_ports[i], 1);
+
+ release_region(hwif->io_ports[IDE_DATA_OFFSET], 8);
}
void ide_remove_port_from_hwgroup(ide_hwif_t *hwif)