[PATCH 5/8] dt/bindings: Update binding for PM domain idle states

[Geert Uytterhoeven]

On Wed, Oct 5, 2016 at 10:31 PM, Lina Iyer <lina.iyer at linaro.org> wrote:
> Update DT bindings to describe idle states of PM domains.
>
> This patch is based on the original patch by Marc Titinger.
>
> Cc: <devicetree at vger.kernel.org>
> Signed-off-by: Marc Titinger <mtitinger+renesas at baylibre.com>
> Signed-off-by: Ulf Hansson <ulf.hansson at linaro.org>
> Signed-off-by: Lina Iyer <lina.iyer at linaro.org>
> Acked-by: Rob Herring <robh at kernel.org>
> ---
>  .../devicetree/bindings/power/power_domain.txt     | 36 ++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/power/power_domain.txt b/Documentation/devicetree/bindings/power/power_domain.txt
> index 025b5e7..a043315 100644
> --- a/Documentation/devicetree/bindings/power/power_domain.txt
> +++ b/Documentation/devicetree/bindings/power/power_domain.txt
> @@ -29,6 +29,10 @@ Optional properties:
>     specified by this binding. More details about power domain specifier are
>     available in the next section.
>
> +- domain-idle-states : A phandle of an idle-state that shall be soaked into a
> +                generic domain power state. The idle state definitions are
> +                compatible with arm,idle-state specified in [1].
> +
>  Example:
>
>         power: power-controller at 12340000 {
> @@ -59,6 +63,36 @@ The nodes above define two power controllers: 'parent' and 'child'.
>  Domains created by the 'child' power controller are subdomains of '0' power
>  domain provided by the 'parent' power controller.
>
> +Example 3:
> +       parent: power-controller at 12340000 {

With W=1, this is gonna trigger:

    Warning (unit_address_vs_reg): Node foo has a unit name, but no reg property

Yes, there are pre-existing users in this file.

> +               compatible = "foo,power-controller";
> +               reg = <0x12340000 0x1000>;
> +               #power-domain-cells = <1>;
> +               domain-idle-states = <&DOMAIN_RET, &DOMAIN_PWR_DN>;
> +       };

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