AnsweredAssumed Answered

Power-on latency exceeded

Question asked by James Min on Dec 10, 2015
Latest reply on Dec 27, 2018 by AL ee

I got following warning message from the kernel a few times per hours at random during operation.


PU: Power-on latency exceeded, new value 64083334 ns


The "new value" varies each time. I don't think it would be a big problem, but I want to get rid of it in the first place thinking by giving proper initial value.


The chipset is iMX6Q and the dts have like below.

gpc: gpc@020dc000 {

                                compatible = "fsl,imx6q-gpc";

                                reg = <0x020dc000 0x4000>;

                                interrupts = <0 89 IRQ_TYPE_LEVEL_HIGH>,

                                             <0 90 IRQ_TYPE_LEVEL_HIGH>;

                                pu-supply = <&reg_pu>;

                                clocks = <&clks IMX6QDL_CLK_GPU3D_CORE>,

                                         <&clks IMX6QDL_CLK_GPU3D_SHADER>,

                                         <&clks IMX6QDL_CLK_GPU2D_CORE>,

                                         <&clks IMX6QDL_CLK_GPU2D_AXI>,

                                         <&clks IMX6QDL_CLK_OPENVG_AXI>,

                                         <&clks IMX6QDL_CLK_VPU_AXI>;

                                #power-domain-cells = <1>;



Is there any way to get rid of the message?