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| author | Jean Delvare <jdelvare@suse.de> | 2008-07-14 22:38:33 +0200 |
|---|---|---|
| committer | Jean Delvare <khali@mahadeva.delvare> | 2008-07-14 22:38:33 +0200 |
| commit | 54fb4a05af0a4b814e6716cfdf3fa97fc6be7a32 (patch) | |
| tree | b3a258dce4f1bc8ccb58541efae444ba89f9fc55 /drivers/i2c/busses/i2c-isch.c | |
| parent | i2c-ocores: basic PM support (diff) | |
| download | linux-54fb4a05af0a4b814e6716cfdf3fa97fc6be7a32.tar.xz 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-isch.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-isch.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-isch.c b/drivers/i2c/busses/i2c-isch.c index 8d648911a7f5..b9c01aa90036 100644 --- a/drivers/i2c/busses/i2c-isch.c +++ b/drivers/i2c/busses/i2c-isch.c @@ -35,6 +35,7 @@ #include <linux/i2c.h> #include <linux/init.h> #include <linux/io.h> +#include <linux/acpi.h> /* SCH SMBus address offsets */ #define SMBHSTCNT (0 + sch_smba) @@ -279,6 +280,8 @@ static int __devinit sch_probe(struct pci_dev *dev, dev_err(&dev->dev, "SMBus base address uninitialized!\n"); return -ENODEV; } + if (acpi_check_region(sch_smba, SMBIOSIZE, sch_driver.name)) + return -EBUSY; if (!request_region(sch_smba, SMBIOSIZE, sch_driver.name)) { dev_err(&dev->dev, "SMBus region 0x%x already in use!\n", sch_smba); |