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authorJean Delvare <jdelvare@suse.de>2008-07-14 22:38:33 +0200
committerJean Delvare <khali@mahadeva.delvare>2008-07-14 22:38:33 +0200
commit54fb4a05af0a4b814e6716cfdf3fa97fc6be7a32 (patch)
treeb3a258dce4f1bc8ccb58541efae444ba89f9fc55 /drivers/i2c/busses/i2c-amd756.c
parent2373c1801afd06d3a206376902b39a98458c9cfb (diff)
downloadblackbird-op-linux-54fb4a05af0a4b814e6716cfdf3fa97fc6be7a32.tar.gz
blackbird-op-linux-54fb4a05af0a4b814e6716cfdf3fa97fc6be7a32.zip
i2c: Check for ACPI resource conflicts
Check for ACPI resource conflicts in i2c bus drivers. I've included all recent SMBus master drivers for PC hardware. I've voluntarily left out: * Drivers that don't run on PCs: they can't conflict with ACPI. * Bit-banged bus device drivers: it's very unlikely that ACPI would deal with such buses. Signed-off-by: Jean Delvare <jdelvare@suse.de>
Diffstat (limited to 'drivers/i2c/busses/i2c-amd756.c')
-rw-r--r--drivers/i2c/busses/i2c-amd756.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-amd756.c b/drivers/i2c/busses/i2c-amd756.c
index bd4f6380fabe..26acc657e5c9 100644
--- a/drivers/i2c/busses/i2c-amd756.c
+++ b/drivers/i2c/busses/i2c-amd756.c
@@ -45,6 +45,7 @@
#include <linux/ioport.h>
#include <linux/i2c.h>
#include <linux/init.h>
+#include <linux/acpi.h>
#include <asm/io.h>
/* AMD756 SMBus address offsets */
@@ -368,6 +369,11 @@ static int __devinit amd756_probe(struct pci_dev *pdev,
amd756_ioport += SMB_ADDR_OFFSET;
}
+ error = acpi_check_region(amd756_ioport, SMB_IOSIZE,
+ amd756_driver.name);
+ if (error)
+ return error;
+
if (!request_region(amd756_ioport, SMB_IOSIZE, amd756_driver.name)) {
dev_err(&pdev->dev, "SMB region 0x%x already in use!\n",
amd756_ioport);
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