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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>
hifive-unleashed-5.1
Jean Delvare 2009-12-06 17:06:27 +01:00
parent 9669f54194
commit 7e2193a8f9
1 changed files with 3 additions and 0 deletions
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3
drivers/i2c/busses/i2c-i801.c
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@ -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);