korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-16 16:54:20 +08:00
Code Issues Packages Projects Releases Wiki Activity

[PATCH] i2c: SMBus PEC support rewrite, 3 of 3

Browse Source 
The new SMBus PEC implementation doesn't support PEC emulation on
non-PEC non-I2C SMBus masters, so we can drop all related code.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean Delvare 2005-10-26 21:31:15 +02:00 committed by Greg Kroah-Hartman
parent 421ef47be2
commit 585b3160f8
4 changed files with 5 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/i2c/busses/i2c-amd8111.c
View File

@ -253,13 +253,6 @@ static s32 amd8111_access(struct i2c_adapter * adap, u16 addr, unsigned short fl
read_write = I2C_SMBUS_READ;
break;
case I2C_SMBUS_WORD_DATA_PEC:
case I2C_SMBUS_BLOCK_DATA_PEC:
case I2C_SMBUS_PROC_CALL_PEC:
case I2C_SMBUS_BLOCK_PROC_CALL_PEC:
dev_warn(&adap->dev, "Unexpected software PEC transaction %d\n.", size);
return -1;
default:
dev_warn(&adap->dev, "Unsupported transaction %d\n", size);
return -1;

13
drivers/i2c/busses/i2c-i801.c
View File

@ -102,8 +102,8 @@ MODULE_PARM_DESC(force_addr,
"EXTREMELY DANGEROUS!");
static int i801_transaction(void);
static int i801_block_transaction(union i2c_smbus_data *data,
char read_write, int command);
static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
int command, int hwpec);
static unsigned short i801_smba;
static struct pci_driver i801_driver;
@ -249,7 +249,7 @@ static int i801_transaction(void)
/* All-inclusive block transaction function */
static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
int command)
int command, int hwpec)
{
int i, len;
int smbcmd;
@ -388,7 +388,7 @@ static int i801_block_transaction(union i2c_smbus_data *data, char read_write,
goto END;
}
if(isich4 && command == I2C_SMBUS_BLOCK_DATA_PEC) {
if (hwpec && command == I2C_SMBUS_BLOCK_DATA) {
/* wait for INTR bit as advised by Intel */
timeout = 0;
do {
@ -456,9 +456,6 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
break;
case I2C_SMBUS_BLOCK_DATA:
case I2C_SMBUS_I2C_BLOCK_DATA:
case I2C_SMBUS_BLOCK_DATA_PEC:
if(hwpec && size == I2C_SMBUS_BLOCK_DATA)
size = I2C_SMBUS_BLOCK_DATA_PEC;
outb_p(((addr & 0x7f) << 1) | (read_write & 0x01),
SMBHSTADD);
outb_p(command, SMBHSTCMD);
@ -476,7 +473,7 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
outb_p(1, SMBAUXCTL); /* enable HW PEC */
}
if(block)
ret = i801_block_transaction(data, read_write, size);
ret = i801_block_transaction(data, read_write, size, hwpec);
else {
outb_p(xact | ENABLE_INT9, SMBHSTCNT);
ret = i801_transaction();

7
drivers/i2c/busses/i2c-nforce2.c
View File

@ -188,13 +188,6 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
dev_err(&adap->dev, "I2C_SMBUS_BLOCK_PROC_CALL not supported!\n");
return -1;
case I2C_SMBUS_WORD_DATA_PEC:
case I2C_SMBUS_BLOCK_DATA_PEC:
case I2C_SMBUS_PROC_CALL_PEC:
case I2C_SMBUS_BLOCK_PROC_CALL_PEC:
dev_err(&adap->dev, "Unexpected software PEC transaction %d\n.", size);
return -1;
default:
dev_err(&adap->dev, "Unsupported transaction %d\n", size);
return -1;

4
include/linux/i2c.h
View File

@ -451,10 +451,6 @@ union i2c_smbus_data {
#define I2C_SMBUS_BLOCK_DATA 5
#define I2C_SMBUS_I2C_BLOCK_DATA 6
#define I2C_SMBUS_BLOCK_PROC_CALL 7 /* SMBus 2.0 */
#define I2C_SMBUS_BLOCK_DATA_PEC 8 /* SMBus 2.0 */
#define I2C_SMBUS_PROC_CALL_PEC 9 /* SMBus 2.0 */
#define I2C_SMBUS_BLOCK_PROC_CALL_PEC 10 /* SMBus 2.0 */
#define I2C_SMBUS_WORD_DATA_PEC 11 /* SMBus 2.0 */
/* ----- commands for the ioctl like i2c_command call: