i2c: Use resource_size macro
This replace all instances in the i2c busses tree of
res->end - res->start + 1 with the handy macro resource_size(res)
from ioport.h (coming in from platform_device.h).
This was created with a simple
sed -i -e 's/\([a-z]*\)->end *- *[a-z]*->start *+ *1/resource_size(\1)/g'
Then manually replacing the PXA redefiniton of the same kind
of macro manually. Recompiled some ARM defconfigs I could find to
make a rough test so it shouldn't break anything, though I
couldn't see exactly which configs you need for all the drivers.
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/drivers/i2c/busses/i2c-pca-platform.c b/drivers/i2c/busses/i2c-pca-platform.c
index 7b23891..c4df9d4 100644
--- a/drivers/i2c/busses/i2c-pca-platform.c
+++ b/drivers/i2c/busses/i2c-pca-platform.c
@@ -27,8 +27,6 @@
#include <asm/irq.h>
#include <asm/io.h>
-#define res_len(r) ((r)->end - (r)->start + 1)
-
struct i2c_pca_pf_data {
void __iomem *reg_base;
int irq; /* if 0, use polling */
@@ -148,7 +146,7 @@
goto e_print;
}
- if (!request_mem_region(res->start, res_len(res), res->name)) {
+ if (!request_mem_region(res->start, resource_size(res), res->name)) {
ret = -ENOMEM;
goto e_print;
}
@@ -161,13 +159,13 @@
init_waitqueue_head(&i2c->wait);
- i2c->reg_base = ioremap(res->start, res_len(res));
+ i2c->reg_base = ioremap(res->start, resource_size(res));
if (!i2c->reg_base) {
ret = -ENOMEM;
goto e_remap;
}
i2c->io_base = res->start;
- i2c->io_size = res_len(res);
+ i2c->io_size = resource_size(res);
i2c->irq = irq;
i2c->adap.nr = pdev->id >= 0 ? pdev->id : 0;
@@ -250,7 +248,7 @@
e_remap:
kfree(i2c);
e_alloc:
- release_mem_region(res->start, res_len(res));
+ release_mem_region(res->start, resource_size(res));
e_print:
printk(KERN_ERR "Registering PCA9564/PCA9665 FAILED! (%d)\n", ret);
return ret;