[PATCH 2/2] Documentation: devicetree: Add boost-opp binding to list boost mode OPPs

[Rob Herring]

On Tue, Feb 4, 2014 at 3:41 AM, Thomas Abraham <ta.omasab at gmail.com> wrote:
> From: Thomas Abraham <thomas.ab at samsung.com>
>
> Certain CPUs or devices can support optional boost operating modes. Add a new
> binding to list OPPs to be additionally made available in boost operating modes.
>
> Cc: Nishanth Menon <nm at ti.com>
> Cc: Lukasz Majewski <l.majewski at samsung.com>
> Cc: Rob Herring <robh+dt at kernel.org>
> Cc: Pawel Moll <pawel.moll at arm.com>
> Cc: Mark Rutland <mark.rutland at arm.com>
> Cc: Ian Campbell <ijc+devicetree at hellion.org.uk>
> Cc: Kumar Gala <galak at codeaurora.org>
> Signed-off-by: Thomas Abraham <thomas.ab at samsung.com>
> ---
>  Documentation/devicetree/bindings/power/opp.txt |    9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/power/opp.txt b/Documentation/devicetree/bindings/power/opp.txt
> index 74499e5..4df5cca 100644
> --- a/Documentation/devicetree/bindings/power/opp.txt
> +++ b/Documentation/devicetree/bindings/power/opp.txt
> @@ -10,6 +10,10 @@ Properties:
>         freq: clock frequency in kHz
>         vol: voltage in microvolt
>
> +Optional Properties:
> +- boost-opp: Similar to "operating-points" property but usable only in
> +  optional boost operating modes.
> +
>  Examples:
>
>  cpu at 0 {
> @@ -22,4 +26,9 @@ cpu at 0 {
>                 396000  950000
>                 198000  850000
>         >;
> +       boost-opp = <
> +               /* kHz     uV */
> +               1500000 1350000
> +               1400000 1285000
> +       >;

This looks like an example of needing to add more properties to the
OPP table. There are ongoing discussions on how to extend OPP table
and map to C states. This should be part of that discussion.

Rob