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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 22:25:18 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-04-26 22:25:18 +0200 |
| commit | 2305d94321bbbdc461acfb24b41fbf50f8a6dd91 (patch) | |
| tree | 321e06f595c467296513267db63d0faa04c74569 /drivers/ide/arm | |
| parent | 2c4be251be1cace01a2a18bf5abb847010516511 (diff) | |
| download | kernel_samsung_smdk4412-2305d94321bbbdc461acfb24b41fbf50f8a6dd91.zip kernel_samsung_smdk4412-2305d94321bbbdc461acfb24b41fbf50f8a6dd91.tar.gz kernel_samsung_smdk4412-2305d94321bbbdc461acfb24b41fbf50f8a6dd91.tar.bz2 | |
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/ide/arm')
| -rw-r--r-- | drivers/ide/arm/ide_arm.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/ide/arm/ide_arm.c b/drivers/ide/arm/ide_arm.c index 82643df..a05d3df 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); |