Re: [PATCH 05/27] clk: sunxi-ng: Use u64 for calculation of NM rate

From: Chen-Yu Tsai
Date: Tue Sep 04 2018 - 05:19:06 EST


On Sun, Sep 2, 2018 at 3:27 PM Jernej Skrabec <jernej.skrabec@xxxxxxxx> wrote:
>
> Allwinner H6 SoC has multiplier N range between 1 and 254. Since parent
> rate is 24MHz, intermediate result when calculating final rate easily
> overflows 32 bit variable.
>
> Because of that, introduce function for calculating clock rate which
> uses 64 bit variable for intermediate result.
>
> Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>

The code looks good. The A80's Video PLLs are also affected by this.
The range for N on the A80 is 12 ~ 255.

Can you add fixes and stable tags?

ChenYu