Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / cpufreq / cpufreq-exynos5440.txt

diff --git a/kernel/Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt b/kernel/Documentation/devicetree/bindings/cpufreq/cpufreq-exynos5440.txt
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+
+Exynos5440 cpufreq driver
+-------------------
+
+Exynos5440 SoC cpufreq driver for CPU frequency scaling.
+
+Required properties:
+- interrupts: Interrupt to know the completion of cpu frequency change.
+- operating-points: Table of frequencies and voltage CPU could be transitioned into,
+       in the decreasing order. Frequency should be in KHz units and voltage
+       should be in microvolts.
+
+Optional properties:
+- clock-latency: Clock monitor latency in microsecond.
+
+All the required listed above must be defined under node cpufreq.
+
+Example:
+--------
+       cpufreq@160000 {
+               compatible = "samsung,exynos5440-cpufreq";
+               reg = <0x160000 0x1000>;
+               interrupts = <0 57 0>;
+               operating-points = <
+                               1000000 975000
+                               800000  925000>;
+               clock-latency = <100000>;
+       };