linux-kernel - Re: [PATCH v11 1/9] dt-bindings: opp: Introduce opp-level bindings

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Message-ID: <20190110062654.3ukmgorqdw5tist5@vireshk-i7>
Date:   Thu, 10 Jan 2019 11:56:54 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>
Cc:     andy.gross@...aro.org, robh@...nel.org, sboyd@...nel.org,
        ulf.hansson@...aro.org, collinsd@...eaurora.org, mka@...omium.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, henryc.chen@...iatek.com
Subject: Re: [PATCH v11 1/9] dt-bindings: opp: Introduce opp-level bindings

On 10-01-19, 09:32, Rajendra Nayak wrote:
> Add opp-level as an additional property in the OPP node to describe
> the performance level of the device.
> 
> On some SoCs (especially from Qualcomm and MediaTek) this value
> is communicated to a remote microprocessor by the CPU, which
> then takes some actions (like adjusting voltage values across various
> rails) based on the value passed.
> 
> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
> ---
>  Documentation/devicetree/bindings/opp/opp.txt | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt
> index c396c4c0af92..76b6c79604a5 100644
> --- a/Documentation/devicetree/bindings/opp/opp.txt
> +++ b/Documentation/devicetree/bindings/opp/opp.txt
> @@ -129,6 +129,9 @@ Optional properties:
>  - opp-microamp-<name>: Named opp-microamp property. Similar to
>    opp-microvolt-<name> property, but for microamp instead.
>  
> +- opp-level: A value representing the performance level of the device,
> +  expressed as a 32-bit integer.
> +
>  - clock-latency-ns: Specifies the maximum possible transition latency (in
>    nanoseconds) for switching to this OPP from any other OPP.

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh