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authorJean Delvare <khali@linux-fr.org>2006-06-12 21:50:11 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2006-06-22 11:10:35 -0700
commitd8db8f98562c1e358e42503bb920f75f15a5c6d2 (patch)
tree389e113cfd07cef7e8c213a49d517bfe206aba79
parent397e2f66a23469e2b8a13b764cb2d9ff2444ad5a (diff)
downloadlinux-linaro-stable-d8db8f98562c1e358e42503bb920f75f15a5c6d2.tar.gz
[PATCH] i2c-i801: Remove force_addr parameter
i2c-i801: Remove force_addr parameter Remove the force_addr module parameter. It doesn't appear to ever have been needed, and PCI resources shouldn't be arbitrarily changed anyway. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--Documentation/i2c/busses/i2c-i8013
-rw-r--r--drivers/i2c/busses/i2c-i801.c35
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");
}