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[PATCH 4/9] Documentation: add DT bindings for ARM SCPI sensors

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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@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
---
 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 e3757bc..5cb2b18 100644
--- a/Documentation/devicetree/bindings/arm/arm,scpi.txt
+++ b/Documentation/devicetree/bindings/arm/arm,scpi.txt
@@ -74,8 +74,18 @@ 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:
 
@@ -124,6 +134,11 @@ scpi_protocol: scpi@2e000000 {
 			clock-output-names = "pxlclk0", "pxlclk1";
 		};
 	};
+
+	scpi_sensors0: sensors {
+		compatible = "arm,scpi-sensors";
+		#thermal-sensor-cells = <1>;
+	};
 };
 
 cpu@0 {
-- 
2.1.4

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[PATCH 0/9] Platform support for thermal management on Junoe Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  [PATCH 4/9] Documentation: add DT bindings for ARM SCPI sensors Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  [PATCH 9/9] arm64: dts: Create SoC thermal zone for Juno Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  [PATCH 2/9] cpufreq-dt: Supply power coefficient when registering cooling devices Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  [PATCH 8/9] arm64: dts: Add sensor node to Juno dt Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  [PATCH 7/9] hwmon: Support registration of thermal zones for SCP temperature sensors Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
    Re: [PATCH 7/9] hwmon: Support registration of thermal zones for  SCP temperature sensors Guenter Roeck <linux@roeck-us.net> - 2015-07-22 18:00 +0200
      Re: [PATCH 7/9] hwmon: Support registration of thermal zones for SCP temperature sensors Punit Agrawal <punit.agrawal@arm.com> - 2015-07-24 16:20 +0200
  [PATCH 6/9] hwmon: Support sensors exported via ARM SCP interface Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
    Re: [PATCH 6/9] hwmon: Support sensors exported via ARM SCP interface Guenter Roeck <linux@roeck-us.net> - 2015-07-22 17:40 +0200
      Re: [PATCH 6/9] hwmon: Support sensors exported via ARM SCP interface Punit Agrawal <punit.agrawal@arm.com> - 2015-07-24 16:10 +0200
  [PATCH 5/9] firmware: arm_scpi: Extend to support sensors Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  [PATCH 1/9] devicetree: bindings: Add optional dynamic-power-coefficient property Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  [PATCH 3/9] cpufreq: arm_big_little: Add support to register a cpufreq cooling device Punit Agrawal <punit.agrawal@arm.com> - 2015-07-22 16:10 +0200
  Re: [PATCH 0/9] Platform support for thermal management on Junoe Punit Agrawal <punit.agrawal@arm.com> - 2015-07-24 16:20 +0200
    Re: [PATCH 0/9] Platform support for thermal management on Junoe Viresh Kumar <viresh.kumar@linaro.org> - 2015-07-25 03:30 +0200

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