Pull acpi_bus_register_driver into release branch

[pandora-kernel.git] / drivers / i2c / busses / i2c-i801.c

diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 8e0f315..dfca749 100644 (file)
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -478,6 +478,11 @@ static s32 i801_access(struct i2c_adapter * adap, u16 addr,
                ret = i801_transaction();
        }
 
+       /* Some BIOSes don't like it when PEC is enabled at reboot or resume
+          time, so we forcibly disable it after every transaction. */
+       if (hwpec)
+               outb_p(0, SMBAUXCTL);
+
        if(block)
                return ret;
        if(ret)