diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-piix4.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-piix4.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c index fe2dd07d80f6..23d1c167b5d7 100644 --- a/drivers/i2c/busses/i2c-piix4.c +++ b/drivers/i2c/busses/i2c-piix4.c @@ -159,7 +159,7 @@ struct i2c_piix4_adapdata { /* SB800 */ bool sb800_main; - u8 port; + u8 port; /* Port number, shifted */ }; static int piix4_setup(struct pci_dev *PIIX4_dev, @@ -595,8 +595,8 @@ static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 addr, smba_en_lo = inb_p(SB800_PIIX4_SMB_IDX + 1); port = adapdata->port; - if ((smba_en_lo & SB800_PIIX4_PORT_IDX_MASK) != (port << 1)) - outb_p((smba_en_lo & ~SB800_PIIX4_PORT_IDX_MASK) | (port << 1), + if ((smba_en_lo & SB800_PIIX4_PORT_IDX_MASK) != port) + outb_p((smba_en_lo & ~SB800_PIIX4_PORT_IDX_MASK) | port, SB800_PIIX4_SMB_IDX + 1); retval = piix4_access(adap, addr, flags, read_write, @@ -682,7 +682,7 @@ static int piix4_add_adapter(struct pci_dev *dev, unsigned short smba, adapdata->smba = smba; adapdata->sb800_main = sb800_main; - adapdata->port = port; + adapdata->port = port << 1; /* set up the sysfs linkage to our parent device */ adap->dev.parent = &dev->dev; @@ -818,7 +818,7 @@ static void piix4_adap_remove(struct i2c_adapter *adap) if (adapdata->smba) { i2c_del_adapter(adap); - if (adapdata->port == 0) { + if (adapdata->port == (0 << 1)) { release_region(adapdata->smba, SMBIOSIZE); if (adapdata->sb800_main) release_region(SB800_PIIX4_SMB_IDX, 2); |