diff options
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 05187457f88a..ed271274250b 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -259,6 +259,7 @@ struct i801_priv { struct i2c_adapter adapter; unsigned long smba; unsigned char original_hstcfg; + unsigned char original_hstcnt; unsigned char original_slvcmd; struct pci_dev *pci_dev; unsigned int features; @@ -1805,7 +1806,8 @@ 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 Host Notify setting */ + /* 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)); @@ -1869,6 +1871,7 @@ static void i801_remove(struct pci_dev *dev) { struct i801_priv *priv = pci_get_drvdata(dev); + outb_p(priv->original_hstcnt, SMBHSTCNT(priv)); i801_disable_host_notify(priv); i801_del_mux(priv); i2c_del_adapter(&priv->adapter); @@ -1892,6 +1895,7 @@ static void i801_shutdown(struct pci_dev *dev) struct i801_priv *priv = pci_get_drvdata(dev); /* Restore config registers to avoid hard hang on some systems */ + outb_p(priv->original_hstcnt, SMBHSTCNT(priv)); i801_disable_host_notify(priv); pci_write_config_byte(dev, SMBHSTCFG, priv->original_hstcfg); } @@ -1901,6 +1905,7 @@ static int i801_suspend(struct device *dev) { struct i801_priv *priv = dev_get_drvdata(dev); + outb_p(priv->original_hstcnt, SMBHSTCNT(priv)); pci_write_config_byte(priv->pci_dev, SMBHSTCFG, priv->original_hstcfg); return 0; } |