2014-04-28 18:08 GMT+08:00 Thomas Gleixner :
> On Mon, 28 Apr 2014, Axel Lin wrote:
>
>> According to the datasheet, the attribute of Interrupt Status Register is
>> RW0S,
>> which means:
>> Software can read the register.
>> Software can also "write 1 to clear". "write 0" has no effec
On Mon, 28 Apr 2014, Axel Lin wrote:
> According to the datasheet, the attribute of Interrupt Status Register is
> RW0S,
> which means:
> Software can read the register.
> Software can also "write 1 to clear". "write 0" has no effect.
>
> So the read/modify/write cycle is no necessar
According to the datasheet, the attribute of Interrupt Status Register is RW0S,
which means:
Software can read the register.
Software can also "write 1 to clear". "write 0" has no effect.
So the read/modify/write cycle is no necessary, switch to a simple write clear
instead.
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