# Re: \[PATCH 2.6.21-rt2\] PowerPC: decrementer clockevent driver

- From: Sergei Shtylyov \<hidden\>
- Date: 2007-05-17 18:41:21 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2007/05/957130
- Thread: https://ratatoskr.run/lkml/2007/05/957088/t.md

```text
Hello.

Kumar Gala wrote:

>> Kumar Gala wrote:

>>> I haven't looked at all the new clock/timer code, is there any   utility in having support for more than one clock source?

>>    Of course, you may register as many as you like.

> Sure, but is there any utility in registering more than the  decrementer on PPC?

   Not yet. I'm not sure I know any other PPC CPU facility fitting for clockevents. In theory, FIT could be used -- but its period is measured in powers of 2, IIRC.

> - k

WBR, Sergei
```