[PATCH v2][POWERPC] document ipic level/sense info

[Segher Boessenkool]

>> +Sense and level information follows the Linux convention
>> +(specified in include/linux/interrupt.h) and should be encoded
>> +as follows:
>> +
>> +       2 =  high to low edge sensitive type enabled
>> +       8 =  active low level sensitive type enabled

> ... but it is probably worthwhile commentting that sense types 1 & 4
> are not supported; just to fill in the obvious gaps.  :-)

Same for sense types 0, 3, 5, 6, ...

Just name the sense types 0 and 1, similar to what all other
OF interrupt controller bindings do.


Segher