imx6q GPU设置

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imx6q GPU设置

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xiaojunye
Contributor I

Hi,

               我的板子是imx6q,运行的android4.4.2系统,内核版本为3.0.35.

           我想请教一下GPU的温度在哪设置?(在thermal.c只找到cpu相关的温度设置)

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Bio_TICFSL
NXP TechSupport
NXP TechSupport

Hi xiaojun,

Please refer to attached Linux Manual Chapter 23-25 for description of thermal driver. Also please check AN4579 "Thermal Management Guidelines for the i.MX 6Dual/6Quad" for more details.  http://www.nxp.com/doc/AN4579
But when temperature reach passive point , I can see the log shows "System is too hot. GPU3D will work at 1/64 clock."  and check GPU clock by "cat /sys/kernel/debug/clk/clk_summary | grep gpu" , the GPU3D clock still 594MHz .  imx6qsabresd:~# cat /sys/kernel/debug/clk/clk_summary | grep gpu   gpu2d_core_sel 0 0 480000000 0   gpu2d_core_podf 0 0 480000000 0   gpu2d_core 0 0 480000000 0   gpu3d_axi 0 0 270000000 0   gpu2d_axi 0 0 270000000 0   gpu3d_core_sel 0 0 528000000 0   gpu3d_core_podf 0 0 528000000 0   gpu3d_core 0 0 528000000 0   gpu3d_shader_sel 0 0 594000000 0   gpu3d_shader 0 0 594000000 0
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