[PATCH/RFC v2 04/11] soc: renesas: rcar: Add DT support for SYSC PM domains

[Geert Uytterhoeven]

Hi Laurent,

On Mon, Feb 15, 2016 at 11:51 PM, Laurent Pinchart
<laurent.pinchart at ideasonboard.com> wrote:
> On Monday 15 February 2016 22:16:53 Geert Uytterhoeven wrote:
>> Populate the SYSC PM domains from DT.
>>
>> Special cases, like PM domains containing CPU cores or SCUs, are
>> handled by scanning the DT topology.
>>
>> The SYSCIER register value is derived from the PM domains found in DT,
>> which will allow to get rid of the hardcoded values in pm-rcar-gen2.c.
>> However, this means we have to scan for PM domains even if CONFIG_PM=n.
>>
>> FIXME:
>>   - This needs better integration with the PM code in pm-rcar-gen2, the
>>     SMP code in smp-r8a7790, and Magnus' DT APMU series.
>
> Have you given this some thoughts already ? Unfortunately smp_prepare_cpus()
> is called before any initcall :-/ How do the other platforms handle this ?

I'm afraid no other platform already handles this.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at 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