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[ARM] ecard: add ecardm_iomap() / ecardm_iounmap()

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Add devres ecardm_iomap() and ecardm_iounmap() for Acorn expansion
cards.  Convert all expansion card drivers to use them.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2007-05-10 18:40:51 +01:00
committed by Russell King
parent c7b87f3d50
commit 10bdaaa0fa
13 changed files with 53 additions and 118 deletions
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19
arch/arm/kernel/ecard.c
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@@ -41,11 +41,11 @@
#include <linux/init.h>
#include <linux/mutex.h>
#include <linux/kthread.h>
#include <linux/io.h>
#include <asm/dma.h>
#include <asm/ecard.h>
#include <asm/hardware.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
#include <asm/mach/irq.h>
@@ -966,6 +966,23 @@ void ecard_setirq(struct expansion_card *ec, const struct expansion_card_ops *op
}
EXPORT_SYMBOL(ecard_setirq);
void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res,
unsigned long offset, unsigned long maxsize)
{
unsigned long start = ecard_resource_start(ec, res);
unsigned long end = ecard_resource_end(ec, res);
if (offset > (end - start))
return NULL;
start += offset;
if (maxsize && end - start > maxsize)
end = start + maxsize;
return devm_ioremap(&ec->dev, start, end - start);
}
EXPORT_SYMBOL(ecardm_iomap);
/*
* Probe for an expansion card.
*