hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[PATCH] i2c: i2c-i801 explicitly enables/disables PEC 

This patch tweaks i2c-i801.c so that the driver always sets the SMBAUXCTL
register (which enables/disables PEC) explicitly before each transaction.

Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mark M. Hoffman 2005-11-06 23:04:51 +01:00 committed by Greg Kroah-Hartman
parent 46f25dffba
commit 2e3e13f8e9
1 changed files with 1 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/i2c/busses/i2c-i801.c
View File

@ -468,8 +468,7 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
return -1;
}
if (hwpec)
outb_p(1, SMBAUXCTL); /* enable hardware PEC */
outb_p(hwpec, SMBAUXCTL); /* enable/disable hardware PEC */
if(block)
ret = i801_block_transaction(data, read_write, size, hwpec);
@ -478,9 +477,6 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
ret = i801_transaction();
}
if (hwpec)
outb_p(0, SMBAUXCTL); /* disable hardware PEC */
if(block)
return ret;
if(ret)