diff options
| -rw-r--r-- | Documentation/i2c/busses/i2c-i801 | 3 | ||||
| -rw-r--r-- | drivers/i2c/busses/i2c-i801.c | 35 |
2 files changed, 8 insertions, 30 deletions
diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801 index fd4b2712d570..e46c23458242 100644 --- a/Documentation/i2c/busses/i2c-i801 +++ b/Documentation/i2c/busses/i2c-i801 @@ -21,8 +21,7 @@ Authors: Module Parameters ----------------- -* force_addr: int - Forcibly enable the ICH at the given address. EXTREMELY DANGEROUS! +None. Description diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c index 4396dc91d5f5..0d5374cce9cc 100644 --- a/drivers/i2c/busses/i2c-i801.c +++ b/drivers/i2c/busses/i2c-i801.c @@ -92,15 +92,6 @@ #define I801_START 0x40 #define I801_PEC_EN 0x80 /* ICH4 only */ -/* insmod parameters */ - -/* If force_addr is set to anything different from 0, we forcibly enable - the I801 at the given address. VERY DANGEROUS! */ -static u16 force_addr; -module_param(force_addr, ushort, 0); -MODULE_PARM_DESC(force_addr, - "Forcibly enable the I801 at the given address. " - "EXTREMELY DANGEROUS!"); static int i801_transaction(void); static int i801_block_transaction(union i2c_smbus_data *data, char read_write, @@ -129,16 +120,12 @@ static int i801_setup(struct pci_dev *dev) isich4 = 0; /* Determine the address of the SMBus areas */ - if (force_addr) { - i801_smba = force_addr & 0xfff0; - } else { - pci_read_config_word(I801_dev, SMBBA, &i801_smba); - i801_smba &= 0xfff0; - if(i801_smba == 0) { - dev_err(&dev->dev, "SMB base address uninitialized " - "- upgrade BIOS or use force_addr=0xaddr\n"); - return -ENODEV; - } + pci_read_config_word(I801_dev, SMBBA, &i801_smba); + i801_smba &= 0xfff0; + if (!i801_smba) { + dev_err(&dev->dev, "SMBus base address uninitialized, " + "upgrade BIOS\n"); + return -ENODEV; } if (!request_region(i801_smba, (isich4 ? 16 : 8), i801_driver.name)) { @@ -152,15 +139,7 @@ static int i801_setup(struct pci_dev *dev) temp &= ~SMBHSTCFG_I2C_EN; /* SMBus timing */ pci_write_config_byte(I801_dev, SMBHSTCFG, temp); - /* If force_addr is set, we program the new address here. Just to make - sure, we disable the device first. */ - if (force_addr) { - pci_write_config_byte(I801_dev, SMBHSTCFG, temp & 0xfe); - pci_write_config_word(I801_dev, SMBBA, i801_smba); - pci_write_config_byte(I801_dev, SMBHSTCFG, temp | 0x01); - dev_warn(&dev->dev, "WARNING: I801 SMBus interface set to " - "new address %04x!\n", i801_smba); - } else if ((temp & 1) == 0) { + if (!(temp & 1)) { pci_write_config_byte(I801_dev, SMBHSTCFG, temp | 1); dev_warn(&dev->dev, "enabling SMBus device\n"); } |