DSDT fix

Hi all! I have the last warning to fix and I can't manage to do it:

Method (XTBT, 2, Serialized)
{
ADBG ("XTBT")
ADBG ("RP :")
ADBG (Arg0)
Store (Arg0, DTCP) /* \DTCP */
Store (Arg1, DTPT) /* \DTPT */
If (LEqual (Arg0, RPS0))
{
Store (One, Local0)
}
ElseIf (LEqual (Arg0, RPS1))
{
Store (0x02, Local0)
}
Else...

DSDT fix