diff options
Diffstat (limited to 'dts/Bindings/cpufreq/cpufreq-exynos5440.txt')
| -rw-r--r-- | dts/Bindings/cpufreq/cpufreq-exynos5440.txt | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/dts/Bindings/cpufreq/cpufreq-exynos5440.txt b/dts/Bindings/cpufreq/cpufreq-exynos5440.txt new file mode 100644 index 0000000000..caff1a5743 --- /dev/null +++ b/dts/Bindings/cpufreq/cpufreq-exynos5440.txt @@ -0,0 +1,28 @@ + +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>; + }; |