Commit d939047d authored by Frank Li's avatar Frank Li Committed by Viresh Kumar
Browse files

dt-bindings: Remove outdated cpufreq-dt.txt 



The information present in this file is outdated and doesn't serve any
purpose with the current design of the driver.

Remove the outdated file.

Signed-off-by: default avatarFrank Li <Frank.Li@nxp.com>
[ Viresh: Rewrite commit log ]
Signed-off-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
parent f434ec22

Documentation/devicetree/bindings/cpufreq/cpufreq-dt.txt

deleted100644 → 0
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Original line number Diff line number Diff line 
Generic cpufreq driver



It is a generic DT based cpufreq driver for frequency management.  It supports

both uniprocessor (UP) and symmetric multiprocessor (SMP) systems which share

clock and voltage across all CPUs.



Both required and optional properties listed below must be defined

under node /cpus/cpu@0.



Required properties:

- None



Optional properties:

- operating-points: Refer to Documentation/devicetree/bindings/opp/opp-v1.yaml for

  details. OPPs *must* be supplied either via DT, i.e. this property, or

  populated at runtime.

- clock-latency: Specify the possible maximum transition latency for clock,

  in unit of nanoseconds.

- voltage-tolerance: Specify the CPU voltage tolerance in percentage.

- #cooling-cells:

     Please refer to

     Documentation/devicetree/bindings/thermal/thermal-cooling-devices.yaml.



Examples:



cpus {

	#address-cells = <1>;

	#size-cells = <0>;



	cpu@0 {

		compatible = "arm,cortex-a9";

		reg = <0>;

		next-level-cache = <&L2>;

		operating-points = <

			/* kHz    uV */

			792000  1100000

			396000  950000

			198000  850000

		>;

		clock-latency = <61036>; /* two CLK32 periods */

		#cooling-cells = <2>;

	};



	cpu@1 {

		compatible = "arm,cortex-a9";

		reg = <1>;

		next-level-cache = <&L2>;

	};



	cpu@2 {

		compatible = "arm,cortex-a9";

		reg = <2>;

		next-level-cache = <&L2>;

	};



	cpu@3 {

		compatible = "arm,cortex-a9";

		reg = <3>;

		next-level-cache = <&L2>;

	};

};