| Nest DevInfra | a713cee | 2018-08-16 23:51:32 +0000 | [diff] [blame] | 1 | |
| 2 | Exynos5440 cpufreq driver |
| 3 | ------------------- |
| 4 | |
| 5 | Exynos5440 SoC cpufreq driver for CPU frequency scaling. |
| 6 | |
| 7 | Required properties: |
| 8 | - interrupts: Interrupt to know the completion of cpu frequency change. |
| 9 | - operating-points: Table of frequencies and voltage CPU could be transitioned into, |
| 10 | in the decreasing order. Frequency should be in KHz units and voltage |
| 11 | should be in microvolts. |
| 12 | |
| 13 | Optional properties: |
| 14 | - clock-latency: Clock monitor latency in microsecond. |
| 15 | |
| 16 | All the required listed above must be defined under node cpufreq. |
| 17 | |
| 18 | Example: |
| 19 | -------- |
| 20 | cpufreq@160000 { |
| 21 | compatible = "samsung,exynos5440-cpufreq"; |
| 22 | reg = <0x160000 0x1000>; |
| 23 | interrupts = <0 57 0>; |
| 24 | operating-points = < |
| 25 | 1000000 975000 |
| 26 | 800000 925000>; |
| 27 | clock-latency = <100000>; |
| 28 | }; |
