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| author |   Jean Delvare <khali@linux-fr.org> | 2009-12-06 17:06:27 +0100 |
|---|---|---|
| committer | Jean Delvare <khali@linux-fr.org> | 2009-12-06 17:06:27 +0100 |
| commit | 7e2193a8f942a80eef4ae87e3850615450966d0a (patch) | |
| tree | 00c0b46a1ce90845e28571713ce6e5cd8770532b | |
| parent | i2c: Remove big kernel lock from i2cdev_open (diff) | |
| download | linux-dev-7e2193a8f942a80eef4ae87e3850615450966d0a.tar.xz linux-dev-7e2193a8f942a80eef4ae87e3850615450966d0a.zip | |
i2c-i801: Retry on lost arbitration
The Intel 82801 is sometimes used on systems with a BMC connected. The
BMC can access the SMBus, resulting in lost arbitration for the 82801.
We should let i2c-core retry transactions for us in this case.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 55edcfe5b851..df6ab553f975 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -767,6 +767,9 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id /* set up the sysfs linkage to our parent device */ i801_adapter.dev.parent = &dev->dev; + /* Retry up to 3 times on lost arbitration */ + i801_adapter.retries = 3; + snprintf(i801_adapter.name, sizeof(i801_adapter.name), "SMBus I801 adapter at %04lx", i801_smba); err = i2c_add_adapter(&i801_adapter); |