aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorSergei Shtylyov <sshtylyov@ru.mvista.com>2008-06-20 20:53:32 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-06-20 20:53:32 +0200
commitce42a54946db338e43be9a89c0f7927e02aa3a16 (patch)
tree278d32be3b1bed64360b9acdf50de0e157fa24a3 /drivers
parent9bedbcb207ed9a571b239231d99c8fd4a34ae24d (diff)
downloadlinux-ce42a54946db338e43be9a89c0f7927e02aa3a16.tar.gz
palm_bk3710: fix resource management
The driver expected a *virtual* address in the IDE platform device's memory resource and didn't request the memory region for the register block. Fix this taking into account the fact that DaVinci SoC devices are fixed-mapped to the virtual memory early and we can get their virtual addresses using IO_ADDRESS() macro, not having to call ioremap()... While at it, also do some cosmetic changes... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/ide/arm/palm_bk3710.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/drivers/ide/arm/palm_bk3710.c b/drivers/ide/arm/palm_bk3710.c
index d024ac8fad1..cc24803fadf 100644
--- a/drivers/ide/arm/palm_bk3710.c
+++ b/drivers/ide/arm/palm_bk3710.c
@@ -353,8 +353,8 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev)
struct clk *clkp;
struct resource *mem, *irq;
ide_hwif_t *hwif;
- void __iomem *base;
- int pribase, i;
+ unsigned long base;
+ int i;
hw_regs_t hw;
u8 idx[4] = { 0xff, 0xff, 0xff, 0xff };
@@ -374,22 +374,27 @@ static int __devinit palm_bk3710_probe(struct platform_device *pdev)
printk(KERN_ERR "failed to get memory region resource\n");
return -ENODEV;
}
+
irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (irq == NULL) {
printk(KERN_ERR "failed to get IRQ resource\n");
return -ENODEV;
}
- base = (void *)mem->start;
+ if (request_mem_region(mem->start, mem->end - mem->start + 1,
+ "palm_bk3710") == NULL) {
+ printk(KERN_ERR "failed to request memory region\n");
+ return -EBUSY;
+ }
+
+ base = IO_ADDRESS(mem->start);
/* Configure the Palm Chip controller */
- palm_bk3710_chipinit(base);
+ palm_bk3710_chipinit((void __iomem *)base);
- pribase = mem->start + IDE_PALM_ATA_PRI_REG_OFFSET;
for (i = 0; i < IDE_NR_PORTS - 2; i++)
- hw.io_ports_array[i] = pribase + i;
- hw.io_ports.ctl_addr = mem->start +
- IDE_PALM_ATA_PRI_CTL_OFFSET;
+ hw.io_ports_array[i] = base + IDE_PALM_ATA_PRI_REG_OFFSET + i;
+ hw.io_ports.ctl_addr = base + IDE_PALM_ATA_PRI_CTL_OFFSET;
hw.irq = irq->start;
hw.chipset = ide_palm3710;
@@ -434,4 +439,3 @@ static int __init palm_bk3710_init(void)
module_init(palm_bk3710_init);
MODULE_LICENSE("GPL");
-