linux-kernel - Re: [PATCH RFC 1/8] dt-bindings: thermal: Introduce monitor-falling parameter to thermal trip point binding

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Date:   Wed, 23 Sep 2020 10:03:28 -0600
From:   Rob Herring <robh@...nel.org>
To:     Thara Gopinath <thara.gopinath@...aro.org>
Cc:     rui.zhang@...el.com, daniel.lezcano@...aro.org, agross@...nel.org,
        bjorn.andersson@...aro.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, lukasz.luba@....com,
        amitk@...nel.org
Subject: Re: [PATCH RFC 1/8] dt-bindings: thermal: Introduce monitor-falling
 parameter to thermal trip point binding

On Wed, Sep 16, 2020 at 11:22:19PM -0400, Thara Gopinath wrote:
> Introduce a new binding parameter to thermal trip point description
> to indicate whether the temperature level specified by the trip point
> is monitored for a rise or fall in temperature.
> 
> Signed-off-by: Thara Gopinath <thara.gopinath@...aro.org>
> ---
>  .../devicetree/bindings/thermal/thermal-zones.yaml         | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
> index 3ec9cc87ec50..cc1332ad6c16 100644
> --- a/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
> +++ b/Documentation/devicetree/bindings/thermal/thermal-zones.yaml
> @@ -161,6 +161,13 @@ patternProperties:
>                    The active trip type can be used to control other HW to
>                    help in cooling e.g. fans can be sped up or slowed down
>  
> +              monitor-falling:
> +                description: |
> +                  boolean, If true, the trip point is being monitored for
> +                  falling temperature. If false/absent/default, the trip
> +                  point is being monitored for rising temperature.
> +                type: boolean

What if you wanted to monitor for both?

> +
>              required:
>                - temperature
>                - hysteresis
> -- 
> 2.25.1
>