imx6 Android4.4.3 怎么降低功耗呢？

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houyizi313| 中级技术员

楼主 | 2016-6-29 10:37 | 只看该作者回帖奖励

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mx, Android4, 低功耗, CPU, ARM

我们用imx6dl 跑Android4.4.3（kernel3.10.53），系统无法进入深度休眠？关屏后功耗还是500多mA；特别的费电；
cpus {
#address-cells = <1>;
#size-cells = <0>;

cpu0: cpu@0 {
compatible = "arm,cortex-a9";
device_type = "cpu";
reg = <0>;
next-level-cache = <&L2>;
operating-points = <
/* kHz uV */
996000  1275000
792000  1175000
396000  1150000
>;
fsl,soc-operating-points = <
/* ARM kHz    SOC-PU uV */
996000          1175000
792000          1175000
396000          1175000
>;
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clks 104>, <&clks 6>, <&clks 16>,
   <&clks 17>, <&clks 170>;
clock-names = "arm", "pll2_pfd2_396m", "step",
      "pll1_sw", "pll1_sys";
arm-supply = <&reg_arm>;
pu-supply = <&reg_pu>;
soc-supply = <&reg_soc>;
};

cpu@1 {
compatible = "arm,cortex-a9";
device_type = "cpu";
reg = <1>;
next-level-cache = <&L2>;
};
};

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