Rockchip CPUFreq-DVFS
开发指南
目录
Copyright 2016 @Fuzhou Rockchip Electronics Co., Ltd. II
目录
前言 ......................................................................................................................... I
目录 ........................................................................................................................ II
1 重要概念 ........................................................................................................... 1-1
2 配置方法 ........................................................................................................... 2-1
2.1 DVFS 节点介绍 ........................................................................................... 2-1
2.1.1 CPU、GPU、DDR 三路分开供电。 ........................................................... 2-1
2.1.2 CPU 单独供电，GPU 和 DDR 共用一路供电。 .............................................. 2-1
2.1.3 CPU、GPU 和 DDR 三路共用一路供电。 .................................................... 2-2
2.2 CPU DVFS 节点配置 .................................................................................... 2-2
2.3 GPU DVFS 节点配置 .................................................................................... 2-4
2.4 DDR DVFS 节点配置 .................................................................................... 2-4
3 代码使用接口 ...................................................................................................... 3-1
4 调试接口 ........................................................................................................... 4-1
4.1 dvfs_tree 查看 ........................................................................................... 4-1
4.2 pm_tests 节点使用方法 ................................................................................ 4-2
4.3 cpufreq 节点使用方法 ................................................................................... 4-2
4.4 调试方法 ................................................................................................... 4-3
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