Re: [PATCH 07/13] ARM: dts: r8a7792: initial SoC device tree

Geert Uytterhoeven
2016-06-17T06:27:24Z

Hi Morimoto-san,

On Fri, Jun 17, 2016 at 4:14 AM, Kuninori Morimoto
<kuninori.morimoto.gx@renesas.com> wrote:
>> > Right, I had forgotten about that.
>> > Fortunately the clk-rcar-gen2 driver has a sane failure mode for this case ;-)
>> >
>> > it seems the RCAN clock can just be modeled as a fixed clock. However,
>> > its divider value isn't clear to me, as 15.9 MHz cannot be generated from PLL1
>> > using an integer divider. Morimoto-san, can you please ask for clarification?
>>
>> OK.
>> Now, I asked to HW team about that.
>> Please wait.
>
> RCAN divider is fixed for 1/49
>
> PLL1 (= 1560MHz)
> -> 1/2 (= 780MHz)
> -> RCAN divider 1/49 (= 15.9183..MHz)
>
> Is this clear for you ?

Thanks, that's exactly what we need to know.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds