diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index da773c563e34..45c2ebe40e82 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -1705,11 +1705,6 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) outb_p(inb_p(SMBAUXCTL(priv)) & ~(SMBAUXCTL_CRC | SMBAUXCTL_E32B), SMBAUXCTL(priv)); - /* Remember original Interrupt and Host Notify settings */ - priv->original_hstcnt = inb_p(SMBHSTCNT(priv)) & ~SMBHSTCNT_KILL; - if (priv->features & FEATURE_HOST_NOTIFY) - priv->original_slvcmd = inb_p(SMBSLVCMD(priv)); - /* Default timeout in interrupt mode: 200 ms */ priv->adapter.timeout = HZ / 5; @@ -1739,6 +1734,15 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id) dev_info(&dev->dev, "SMBus using %s\n", priv->features & FEATURE_IRQ ? "PCI interrupt" : "polling"); + /* Host notification uses an interrupt */ + if (!(priv->features & FEATURE_IRQ)) + priv->features &= ~FEATURE_HOST_NOTIFY; + + /* Remember original Interrupt and Host Notify settings */ + priv->original_hstcnt = inb_p(SMBHSTCNT(priv)) & ~SMBHSTCNT_KILL; + if (priv->features & FEATURE_HOST_NOTIFY) + priv->original_slvcmd = inb_p(SMBSLVCMD(priv)); + i801_add_tco(priv); snprintf(priv->adapter.name, sizeof(priv->adapter.name), |