Hi Chanwoo, On Mon, 26 Nov 2018 at 13:08, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote: > > Hi Anand, > > CLK_DOUT_ACLK_G3D is the clock for GPU h/w and it requires the buck4_reg("vdd_g3d"). > > bus_wcore uses the buck3_reg("vdd_int"). bus_wcore and bus_g3d don't share the > same voltage line. It is wrong to make 'bus_g3d' as the child of 'bus_wcore' > because of using the different regulator. > > CLK_DOUT_ACLK_G3D and buck4_reg should be controlled from MALI driver > with DEVFREQ framework. Unfortunately, MALI driver is not posted to mainline. > > Thanks for your clarification, I missed this point. mali gpu is linked to buck4_reg Next time I will ask for the expert how to proceed on some changes. Best Regards -Anand