# Re: \[PATCH\] clk: rockchip: Fix overflow rate during fractional approximation

- From: Jagan Teki \<jagan@amarulasolutions.com\>
- Date: 2020-09-16 18:54:28 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2020/09/6107607
- Thread: https://ratatoskr.run/linux-clk/2020/08/6088465/t.md

```text
Hi,

On Tue, Sep 15, 2020 at 7:10 AM elaine.zhang [ref] wrote:
>
> hi,
>
> We have two submissions which I hope will be helpful to you.
>
> https://patchwork.kernel.org/patch/11272465/
> https://patchwork.kernel.org/patch/11272471/

I can see this, I have reconstructed the fractional divider handling
for px30 instead of all rockchiip platforms, is it okay to send
px30-alone fractional div handling support?


>
>
> A few more notes:
> 1. DCLK does not recommend the use of fractional frequency divider.
> Generally, DCLK will monopolize a PLL, and the relationship between DCLK
> frequency and PLL frequency is 1:1.
> 2, half-div, not all SOC support, detailed need to see TRM.

Can you point me the Page number on TRM?

Jagan.

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
```