linux-kernel - Re: [PATCH v2 05/10] Documentation: add DT bindings for ARM SCPI sensors

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Message-ID: <9hhsi6vilrd.fsf@e105922-lin.cambridge.arm.com>
Date:	Thu, 03 Sep 2015 16:08:06 +0100
From:	Punit Agrawal <punit.agrawal@....com>
To:	linux-pm@...r.kernel.org
Cc:	lm-sensors@...sensors.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, liviu.dudau@....com,
	Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Sudeep Holla <sudeep.holla@....com>
Subject: Re: [PATCH v2 05/10] Documentation: add DT bindings for ARM SCPI sensors

Punit Agrawal <punit.agrawal@....com> writes:

> The System Control Processor (SCP) provides access to SoC sensors via
> the System Control and Power Interface (SCPI) Message Protocol. Add
> bindings to allow probing of these sensors. Also support referencing
> of the sensors for setting up thermal zones via the thermal DT
> bindings.
>
> Signed-off-by: Punit Agrawal <punit.agrawal@....com>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: Mark Rutland <mark.rutland@....com>
> Cc: Sudeep Holla <sudeep.holla@....com>

Gentle ping for the bindings review.

> ---
>  Documentation/devicetree/bindings/arm/arm,scpi.txt | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/arm/arm,scpi.txt b/Documentation/devicetree/bindings/arm/arm,scpi.txt
> index e309249..8ead68a 100644
> --- a/Documentation/devicetree/bindings/arm/arm,scpi.txt
> +++ b/Documentation/devicetree/bindings/arm/arm,scpi.txt
> @@ -72,8 +72,18 @@ Required sub-node properties:
>  - compatible : should be "arm,juno-scp-shmem" for Non-secure SRAM based
>  	       shared memory on Juno platforms
>  
> +Sensor bindings for the sensors based on SCPI Message Protocol
> +--------------------------------------------------------------
> +SCPI provides an API to access the various sensors on the SoC.
> +
> +Required properties:
> +- compatible : should be "arm,scpi-sensors".
> +- #thermal-sensor-cells: should be set to 1. This property follows the
> +			 thermal device tree bindings[2].
> +
>  [0] http://community.arm.com/servlet/JiveServlet/download/8401-45-18326/DUI0922B_scp_message_interface.pdf
>  [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
> +[2] Documentation/devicetree/bindings/thermal/thermal.txt
>  
>  Example:
>  
> @@ -122,6 +132,11 @@ scpi_protocol: scpi@...00000 {
>  			clock-output-names = "pxlclk0", "pxlclk1";
>  		};
>  	};
> +
> +	scpi_sensors0: sensors {
> +		compatible = "arm,scpi-sensors";
> +		#thermal-sensor-cells = <1>;
> +	};
>  };
>  
>  cpu@0 {
--
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