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authorMagnus Damm <damm@igel.co.jp>2008-10-16 07:05:15 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 20:21:51 +0200
commitc9f66169f1c696f9489503d7de92daff135c1efd (patch)
treeb96efd22193122874196c4809b94069f8e46cb34 /drivers/base
parentresources: tidy __request_region() (diff)
downloadlinux-c9f66169f1c696f9489503d7de92daff135c1efd.tar.xz
linux-c9f66169f1c696f9489503d7de92daff135c1efd.zip
resource: add resource_type() and IORESOURCE_TYPE_BITS
Add resource_type() and IORESOURCE_TYPE_BITS. They make it easier to add more resource types without having to rewrite tons of code. Signed-off-by: Magnus Damm <damm@igel.co.jp> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Jean Delvare <khali@linux-fr.org> Cc: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/platform.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 3f940393d6c7..66b710c28812 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -42,10 +42,8 @@ struct resource *platform_get_resource(struct platform_device *dev,
for (i = 0; i < dev->num_resources; i++) {
struct resource *r = &dev->resource[i];
- if ((r->flags & (IORESOURCE_IO|IORESOURCE_MEM|
- IORESOURCE_IRQ|IORESOURCE_DMA)) == type)
- if (num-- == 0)
- return r;
+ if (type == resource_type(r) && num-- == 0)
+ return r;
}
return NULL;
}
@@ -78,10 +76,8 @@ struct resource *platform_get_resource_byname(struct platform_device *dev,
for (i = 0; i < dev->num_resources; i++) {
struct resource *r = &dev->resource[i];
- if ((r->flags & (IORESOURCE_IO|IORESOURCE_MEM|
- IORESOURCE_IRQ|IORESOURCE_DMA)) == type)
- if (!strcmp(r->name, name))
- return r;
+ if (type == resource_type(r) && !strcmp(r->name, name))
+ return r;
}
return NULL;
}
@@ -259,9 +255,9 @@ int platform_device_add(struct platform_device *pdev)
p = r->parent;
if (!p) {
- if (r->flags & IORESOURCE_MEM)
+ if (resource_type(r) == IORESOURCE_MEM)
p = &iomem_resource;
- else if (r->flags & IORESOURCE_IO)
+ else if (resource_type(r) == IORESOURCE_IO)
p = &ioport_resource;
}
@@ -282,9 +278,14 @@ int platform_device_add(struct platform_device *pdev)
return ret;
failed:
- while (--i >= 0)
- if (pdev->resource[i].flags & (IORESOURCE_MEM|IORESOURCE_IO))
- release_resource(&pdev->resource[i]);
+ while (--i >= 0) {
+ struct resource *r = &pdev->resource[i];
+ unsigned long type = resource_type(r);
+
+ if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
+ release_resource(r);
+ }
+
return ret;
}
EXPORT_SYMBOL_GPL(platform_device_add);
@@ -306,7 +307,9 @@ void platform_device_del(struct platform_device *pdev)
for (i = 0; i < pdev->num_resources; i++) {
struct resource *r = &pdev->resource[i];
- if (r->flags & (IORESOURCE_MEM|IORESOURCE_IO))
+ unsigned long type = resource_type(r);
+
+ if (type == IORESOURCE_MEM || type == IORESOURCE_IO)
release_resource(r);
}
}