[PATCH v3 02/13] PM / Domains: Add DT bindings for power-on/off latencies

Geert Uytterhoeven geert at linux-m68k.org
Fri Sep 26 10:52:29 PDT 2014


Hi Stephen,

On Fri, Sep 26, 2014 at 5:28 PM, Stephen Boyd <sboyd at codeaurora.org> wrote:
>> On 25 September 2014 18:28, Geert Uytterhoeven <geert+renesas at glider.be> wrote:
>> > +Optional properties:
>> > + - power-on-latency: Power-on latency of the PM domain, in ns,
>> > + - power-off-latency: Power-off latency of the PM domain, in ns.
>> > +
>> >  Example:
>> >
>> >         power: power-controller at 12340000 {
>> >                 compatible = "foo,power-controller";
>> >                 reg = <0x12340000 0x1000>;
>> >                 #power-domain-cells = <1>;
>> > +               power-on-latency = <250000>;
>> > +               power-off-latency = <250000>;
>
> This assumes every power domain within a power controller has the
> same latencies? That isn't always true. This should be an array
> of values corresponding to the number of power domains if
> #power-domain-cells is 1, or just one value if the cell count is
> 0.

Thanks, you're right. Will update.

However, I'd still like to allow just one value in the #power-domain-cells = <1>
case if the latencies are the same. Is that OK for you?

Thanks again.

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



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