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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 22:25:18 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-04-26 22:25:18 +0200
commit2305d94321bbbdc461acfb24b41fbf50f8a6dd91 (patch)
tree321e06f595c467296513267db63d0faa04c74569 /drivers
parent2c4be251be1cace01a2a18bf5abb847010516511 (diff)
ide_arm: manage I/O resources in driver
* Tell IDE layer to not manage resources by setting hwif->mmio flag. * Use {request,release}_region() for resources management. * Use driver name for resources management. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/arm/ide_arm.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c
index 82643df7c49..a05d3dfe256 100644
--- a/drivers/ide/arm/ide_arm.c
+++ b/drivers/ide/arm/ide_arm.c
@@ -14,6 +14,8 @@
#include <asm/mach-types.h>
#include <asm/irq.h>
+#define DRV_NAME "ide_arm"
+
#ifdef CONFIG_ARCH_CLPS7500
# include <asm/arch/hardware.h>
#
@@ -28,15 +30,30 @@ static int __init ide_arm_init(void)
{
ide_hwif_t *hwif;
hw_regs_t hw;
+ unsigned long base = IDE_ARM_IO, ctl = IDE_ARM_IO + 0x206;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
+ if (!request_region(base, 8, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
+ DRV_NAME, base, base + 7);
+ return -EBUSY;
+ }
+
+ if (!request_region(ctl, 1, DRV_NAME)) {
+ printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
+ DRV_NAME, ctl);
+ release_region(base, 8);
+ return -EBUSY;
+ }
+
memset(&hw, 0, sizeof(hw));
- ide_std_init_ports(&hw, IDE_ARM_IO, IDE_ARM_IO + 0x206);
+ ide_std_init_ports(&hw, base, ctl);
hw.irq = IDE_ARM_IRQ;
hwif = ide_find_port();
if (hwif) {
ide_init_port_hw(hwif, &hw);
+ hwif->mmio = 1;
idx[0] = hwif->index;
ide_device_add(idx, NULL);