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DVFS Issue on imx7dsabresd

Question asked by Muhammed Ali K P on Jun 24, 2019
Latest reply on Jun 26, 2019 by jamesbone

Hi Team,

 

         We are facing an issue on DVFS in imx7dsabresd. we could able to measure the voltage in TP4 test point on board it always showing 1.296V on every frequency (729000,996000,1200000 Mhz). We have tested some BSP versions and It have been noticed that the issue is coming on the BSP version 4.14.98_2.0.0 and 4.14.78_1.0.0. The  DVFS is working properly on  4.9.88-2.0.0_ga and L4.1.15_1.2.0 (image only). when we compare 4.9.88-2.0.0 and 4.14.98_2.0.0 we could able to find out that imx7-cpufreq.c ( drivers/cpufreq/imx7-cpufreq.c ) file is missing on  4.14.98_2.0.0 and some configuration changes. could you please help on this ?

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